NT7E65DJ

Transcription

1 NT7E65DJ SONET Transmission Products S/DMS TransportNode OC-3/OC-12 NE TBM Common Procedures Standard Rel 14 February 2001 What s inside... Safety guidelines Replacing shelf covers Optical tests and procedures Commands, parameters, and response representations Connecting terminals Interacting with the NE UI Interacting with the OPC user interface Corrective and validating procedures

2 Copyright Nortel Networks, All Rights Reserved The information contained herein is the property of Nortel Networks and is strictly confidential. Except as expressly authorized in writing by Nortel Networks, the holder shall keep all information contained herein confidential, shall disclose it only to its employees with a need to know, and shall protect it, in whole or in part, from disclosure and dissemination to third parties with the same degree of care it uses to protect its own confidential information, but with no less than reasonable care. Except as expressly authorized in writing by Nortel Networks, the holder is granted no rights to use the information contained herein. Nortel Networks and S/DMS TransportNode are trademarks of Nortel Networks. VT100 is a trademark of Digital Equipment Corporation. UNIX is a trademark of X/Open Company Ltd. Printed in Canada

3 Contents iii About this document vii Safety guidelines 1-1 Warnings and safety precautions 1-1 Circuit packs 1-2 Static electricity 1-2 Handling, installing, or replacing circuit packs 1-2 Storing circuit packs 1-3 Transporting circuit packs 1-3 Software tapes 1-3 Software cartridges 1-4 Optical fibers 1-4 Laser radiation 1-4 Handling optical fibers 1-5 Splicing optical fibers 1-5 Repairing optical fibers 1-6 Waveguides 1-6 Radio-frequency emissions 1-7 Equipment location 1-7 Replacing shelf covers 2-1 List of procedures 2-1 Installing a shelf cover or a DS3 and STS-1 front-access termination panel cover Removing a shelf cover or a DS3 and STS-1 front-access termination panel cover Stacking a shelf cover or a DS3 and STS-1 front-access termination panel cover Removing the DS3 and STS-1 rear-access termination panel cover Installing a panel cover Removing a panel cover Installing an end guard on a bay 2-11 Optical tests and procedures Cleaning optical connectors and adapters on patchcords and circuit pack faceplates Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) 3-11 Common Procedures Rel 14 Standard Feb 2001

4 iv Contents 3-3 Cleaning and assembling optical connectors for VTM optical interface circuit packs (NT7E05) Measuring optical output power 3-26 Commands, parameters, and response representations 4-1 General keyboard entries 4-1 OPC user interface 4-1 Command strings 4-1 Onscreen buttons and menu items 4-2 Conventions for the VT100-compatible user interface on the OPC screens 4-2 Graphical user interface conventions for OPC 4-7 UNIX command strings 4-11 UNIX editor (vi) quick reference 4-11 Network element user interface 4-12 Command strings 4-12 Connecting terminals 5-1 List of procedures 5-1 Connecting a VT100-compatible terminal to a network element Connecting a terminal to a network element using a modem Connecting a terminal to an OPC Connecting a portable OPC to a network element Connecting a remote terminal to the OPC using a modem 5-27 Interacting with the NE UI 6-1 List of procedures 6-1 Logging in to a network element from a terminal Logging in to a network element from another network element Logging in to a network element from an OPC Logging out from a network element Opening a network element user interface session from other levels of the interface Changing your network element password Locking and unlocking your NE keyboard Using the nelogin command in a UNIX shell 6-19 Interacting with the OPC user interface 7-1 List of procedures 7-1 Logging in to an OPC Logging in to a remote OPC from an OPC Logging in to an OPC from a network element Opening an OPC tool Changing your password Closing an OPC tool Logging out of an OPC Displaying OPC status Changing the name of an OPC Locking and unlocking your OPC keyboard Update Networkid and Systemid 7-30 S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

5 Contents v Corrective and validating procedures 8-1 List of procedures 8-1 Shutting down or rebooting an OPC Changing the OPC date and time Querying current time adjustment Querying the OPC clock source Selecting the OPC clock source 8-12 Time zone codes 8-15 Common Procedures Rel 14 Standard Feb 2001

6 vi Contents S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

7 About this document vii This document describes how to carry out common procedures on an OC-12 shelf. This manual can be used by all operators within a system. The OPC procedures in this document (although CMT-based) can be performed from a graphical terminal; however, you must substitute the CMT keystrokes that are provided in the procedures with the graphical equivalent. A graphical tour and a detailed reference manual are available in User Interfaces Description, References in this document This document refers to the following documents: Ordering Information, Installation Procedures, Commissioning Procedures, User Interfaces Description, System Administration Procedures, Data Administration Procedures, Module Replacement Procedures, Network Manager User Guide, Common Procedures Rel 14 Standard Feb 2001

8 viii About this document S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

9 1-1 Safety guidelines 1- This chapter contains safety guidelines that must be followed for personal safety and for the proper handling and operation of equipment. Warnings and safety precautions To avoid injury, follow all danger warnings provided with this product, as well as the safety procedures established by your company. To avoid damage to equipment or service interruptions, follow all caution warnings provided with this product, as well as the safety procedures established by your company. In this documentation, danger and caution notices look like the following. DANGER Risk of personal injury A danger warning with this symbol indicates a risk of personal injury. DANGER Risk of electrical shock A danger warning with this symbol indicates a risk of personal injury due to an electrical hazard. CAUTION Risk of interruption to service/equipment damage A caution warning with this symbol indicates a risk of service interruption or equipment damage. CAUTION Risk of damaging circuit packs A caution warning with this symbol alerts you to use antistatic protection to avoid damaging circuit packs. Common Procedures Rel 14 Standard Feb 2001

10 1-2 Safety guidelines Circuit packs All circuit packs are subject to damage by rough handling or from electrostatic discharge. Adhere to the following procedures to avoid damaging the circuit packs. Static electricity Static electricity charges build up on your body if you walk a short distance. This buildup is sufficient to damage a circuit pack. Therefore, always wear a skin-contact ground strap or other suitable personal grounding device when working on a shelf, on cables connected to a circuit pack, or on a circuit pack itself. Ground straps can be the expandable-wrist type where the grounding cord is connected to the ground plug on the local craft access panel (LCAP). ESD Ground jack FW-1674 Alternatively, your company may provide antistatic protection by mounting bays on conductive floor coverings, and providing conductive shoes or heel grounders to all personnel. All circuit packs are shipped in antistatic bags marked with the following symbol. ATTENTION OBSERVER DES PRECAUTIONS POUR LA MANIPULATION. DISPOSITIFS SENSIBLES AUX CHARGES STATIQUES ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC SENSITIVE DEVICES Handling, installing, or replacing circuit packs When handling, installing, or replacing circuit packs, observe the following precautions: Wear a wrist strap or other static-grounding device before removing a circuit pack from its package or from a shelf. Place each circuit pack in an antistatic bag when it is not mounted in a shelf. Handle each circuit pack by the faceplate or stiffener. S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

11 Safety guidelines 1-3 Do not touch the solder side of the circuit pack, the pin connector, or the components. Do not stack circuit packs on or against each other. Inspect all circuit packs for damage before sliding them into the shelf. Closely inspect all pin connectors to ensure pins are undamaged. Do not force circuit packs into their packaging material. Protect all optical connectors of the transmit and receive optical circuit packs by covering them with clean dust caps at all times. Before inserting any circuit pack or Operations Controller (OPC) into a shelf, or using a portable OPC, allow the circuit pack or OPC to come to room temperature. Storing circuit packs Spare circuit packs must be left in the original shipping container until required. To prevent damage to circuit packs while in storage, observe procedures that prevent the following: accumulation of dirt or dust on the pin connectors damage to the board or its components board warpage (to boards stored in areas where the humidity can exceed 95 percent and the temperature can exceed 70 C) Transporting circuit packs When transporting circuit packs, pack each circuit pack in its original antistatic shielding bag, padding, and box. If the original material is lost, use other suitable material to prevent damage in transit. Software tapes All software tapes are subject to damage by rough handling or from electrostatic discharge. When handling or installing software tapes, observe the following precautions: Wear a wrist strap or other static-grounding device before removing a software tape from its package or from an OPC. Place each software tape in its case when it is not mounted in an OPC tape drive. Do not touch the bare tape in the cassette. Inspect all tape cassettes for damage before sliding them into the OPC tape drive. Do not force tape cassettes into the OPC tape drive. Before inserting any cassette tape into an OPC tape drive, allow the cassette tape to come to room temperature. Common Procedures Rel 14 Standard Feb 2001

12 1-4 Safety guidelines Software cartridges When handling or installing software cartridges, observe the following precautions: Wear a wrist strap or other static-grounding device before you insert or remove a cartridge from the cartridge drive of an OPC. Place each cartridge in its case when you remove it from the cartridge drive of an OPC. Ensure that the cartridge is inserted with connector facing inward and the Nortel Networks logo facing towards the left. Do not force the cartridge into the OPC cartridge drive. Optical fibers Optical fibers are either single or multiple strand. The following information and precautions apply to all fibers. Laser radiation All Nortel Networks S/DMS optical products and associated optical test sets use laser sources that emit light energy into fiber cables. This energy is within the red (visible) and infrared (invisible) regions of the electromagnetic spectrum. Laser products are subject to federal regulations, state or provincial regulations, and local practices. Regulation 21 CFR 1040 of the U.S. Bureau of Radiological Health requires manufacturers to certify each laser product as Class I, II, III, or IV, depending on the characteristics of the laser radiation emitted. In terms of health and safety, Class I products present the least hazard (none at all), while class IV products present the greatest hazard. All Nortel Networks S/DMS transmission products comply with 21 CFR 1040, Chapter 1, subchapter J as a Class I laser product, as set forth by the U.S. Bureau of Radiological Health. These regulations ensure that there are Caution Avoid direct exposure to beam. Invisible light can blind. Keep all optical connectors capped. no hazards to personnel from the laser transmitter when the system is in its operating configuration. A label similar to the one above is located on all optical interface packs, near the optical connector. During testing and maintenance, some procedures require the handling of optical fibers and transmitters with the dust caps removed. In these circumstances, laser radiation within the limits of Class IIIb might be present. This level of radiation is sufficient to cause injury to personnel and caution must therefore be exercised to avoid exposure. This precaution applies to any point in the system where the laser signal can be accessed (for example at the optical connectors on the optical interface circuit packs). S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

13 Safety guidelines 1-5 Handling optical fibers When working with optical fibers, observe the following precautions: Wear safety glasses when installing optical fibers. Avoid direct exposure to fiber ends or optical connector ends where the laser signal can be accessed. Wipe clean or wash your hands after handling optical fibers. Small bits of glass are almost invisible and can damage your eyes. DANGER Risk of eye injury If there is any suspicion of a glass chip in your eye, seek medical attention at once. Do not handle pieces of optical fiber with bare fingers. Use tweezers or the sticky side of a piece of vinyl tape to pick up and discard any loose fiber ends. Place all optical fiber cuttings in a plastic bottle provided for that purpose. Handle optical fibers with care. Position them in a safe and secure location during installation. Protect all optical fiber connectors with dust caps at all times. Follow the manufacturer s instructions when using an optical test set. Incorrect calibration or control settings could result in hazardous levels of radiation. Splicing optical fibers Splicing optical fibers During the splicing of any fiber, you might be required to look at the fiber using an eye loupe (a small magnifier). Observe the following precautions: Before starting the splicing, power off all laser sources to the fiber or disconnect the remote fiber end from the laser sources. Ensure that the laser sources stay disconnected or powered off, whether the sources are located in a central office, subscriber premises, or a remote location. Before starting the splicing, disconnect any optical test sets from the fiber (whether locally or remotely connected). Use only the optical instruments approved by your company. Common Procedures Rel 14 Standard Feb 2001

14 1-6 Safety guidelines Repairing optical fibers When there is an accidental break in the fiber: Notify both central-office and field-repair personnel. Identify to the central-office personnel where the fibers have been damaged. Power off all laser sources to the fiber or disconnect the remote fiber end from the laser sources, whether the sources are located in a central office, subscriber premises, or a remote location. Waveguides DANGER Exposure to microwave radiation Stray radio frequency (RF) radiation is harmful to the body, especially the eyes. It can also cause interfere with other electronic equipment. For personal safety when handling, installing, or replacing waveguides, you must observe the following precautions: Switch off the transmitter power supply or remove the IF In signal coming from the modulator before opening the waveguide flanges in the direction of power transmission. Never look into an open waveguide that might be radiating microwave energy. Avoid exposure to microwave energy. The maximum safe radiation level, for short periods of time, is 6 mw per square inch. (Reference: Health and Welfare Canada Publication No. 79-EHD-30.) To prevent damage to waveguide equipment, you must observe the following precautions: Do not locate loose waveguide circulators or isolators on metallic surfaces, near magnetic devices, or in contact with each other. Protect all open waveguide and circulator ports with covers to prevent the entry of dust, moisture, or other foreign material. S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

15 Safety guidelines 1-7 Radio-frequency emissions The following regulatory notice applies to all Nortel Networks SONET transmission products. This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the Federal Communications Commission (FCC) Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operating this equipment in a residential area may cause harmful interference, in which case users must correct the interference at their own expense. Equipment location To prevent access by other than trained personnel, all equipment must be placed in restricted access areas (dedicated equipment To be installed only in restricted access areas (dedicated equipment rooms, equipment closets, or the like) in accordance with articles , , and of the National Electrical Code, ANSI/NFPA No. 70. rooms, equipment closets, or the like) in accordance with articles , , and of the National Electrical Code, ANSI/NFPA No. 70. The equipment warning label above is located in the top left-hand corner of the back cover of each shelf to remind installers of this requirement. Common Procedures Rel 14 Standard Feb 2001

16 1-8 Safety guidelines S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

17 2-1 Replacing shelf covers 2- This chapter contains the following common procedures associated with bays and shelves. Task Installing a shelf cover or a DS3 and STS-1 front-access termination panel cover Removing a shelf cover or a DS3 and STS-1 front-access termination panel cover Stacking a shelf cover or a DS3 and STS-1 front-access termination panel cover Page Removing the DS3 and STS-1 rear-access termination panel cover 2-7 Installing a panel cover 2-9 Removing a panel cover 2-10 Installing an end guard on a bay 2-11 Common Procedures Rel 14 Standard Feb 2001

18 2-2 Replacing shelf covers Procedure 2-1 Installing a shelf cover or a DS3 and STS-1 front-access termination panel cover Use this procedure to install a shelf cover or a DS3 and STS-1 front-access termination panel cover. The shelf covers for the regenerator and terminal shelves and the front-access termination panel are held in place with identical latches. The covers differ in size only. Requirements Before starting this procedure: ensure that all cables and fibers are properly tied to the shelves and do not interfere with the shelf cover ensure that all circuit packs are properly installed and are fully latched into the shelf Tools and materials 1 screwdriver, slot, 5/16 in. 1 Put on a skin-contact ground strap. Connect the strap to the ESD jack on the local craft access panel (LCAP). Touch the metal plate behind the shelf cover to dissipate any charge built up on the plate. 2 Turn both locking screws on the shelf cover to the open position (see Figure 2-1). 3 Hold the cover with one hand on each latch. 4 Place the cover on the shelf by tilting the bottom slightly toward the shelf and insert the two guide pins (located at the bottom of the shelf cover) into the corresponding cover support brackets (located on the shelf). 5 Firmly push the cover toward the shelf. Ensure that the three locking mechanisms on each side of the cover engage with the hooks on the shelf. 6 Carefully close both latches to secure the cover to the shelf. 7 Lock the latches on the cover by turning the right locking screw 90 counterclockwise and the left locking screw 90 clockwise. end S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

19 Replacing shelf covers 2-3 Figure 2-1 Shelf and termination panel cover FW-0254 Front view Side view Stacking notch (each side) Hook Latch (closed position) Latch Locking screw (lock position) Guide pin To open To open Lock position Lock position Common Procedures Rel 14 Standard Feb 2001

20 2-4 Replacing shelf covers Procedure 2-2 Removing a shelf cover or a DS3 and STS-1 front-access termination panel cover Use this procedure to remove a shelf cover or a DS3 and STS-1 front-access termination panel cover. The covers for the regenerator and terminal shelves and the front access termination panel are held in place with identical latches. The covers differ in size only. Tools and materials 1 screwdriver, slot, 5/16 in. 1 Unlock the latches by turning the right locking screw 90 clockwise, and the left locking screw 90 counterclockwise, as shown in Figure Pull both latch handles to release the cover and remove the cover from the shelf. 3 The shelf cover can be installed on a shelf cover that is already installed on the bay. This capability ensures that the cover is stored in a safe place and also ensures that any electrical charge built up on the cover during storage is dissipated. If any covers are removed from a bay, and they cannot be stored on an adjacent bay, ensure they are stacked out of the way to avoid damaging them. If possible, store them on a conductive surface so that electrostatic charges do not build up on the covers. end S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

21 Procedure 2-3 Stacking a shelf cover or a DS3 and STS-1 front-access termination panel cover Replacing shelf covers 2-5 Use this procedure to remove a shelf cover or a DS3 and STS-1 front-access termination panel cover. The covers for the regenerator and terminal shelves and the front access termination panel are held in place with identical latches. The covers differ in size only. 1 Hold the cover with one hand on each latch and ensure that both latches are closed. 2 CAUTION Risk of damage to the cover Do not stack more than three shelf covers on a shelf. The excess weight can cause damage to the first shelf cover. 3 Align the hooks on the back of the cover with the stacking notches on the cover installed on the shelf (see Figure 2-1 and Figure 2-2). 4 Place the loose cover onto the one fixed to the shelf. end Common Procedures Rel 14 Standard Feb 2001

22 2-6 Replacing shelf covers Figure 2-2 Stacking a cover on a shelf FW-1906 Stack a maximum of three covers together S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

23 Replacing shelf covers 2-7 Procedure 2-4 Removing the DS3 and STS-1 rear-access termination panel cover Use this procedure to remove a shelf cover from the DS3 and STS-1 rear-access terminal panel. Tools 1 screwdriver, slot, 5/16 in. 1 Turn the four fastening screws counterclockwise, as shown in Figure Gently pull on the cover to remove it from the termination panel. 3 Ensure that the cover is stored in a safe place where it cannot be accidently damaged. end Common Procedures Rel 14 Standard Feb 2001

24 2-8 Replacing shelf covers Figure 2-3 DS3 and STS-1 rear-access termination panel cover removal FW-0414 Screw fasteners (4 places) turn clockwise to lock Screw fasteners (4 places) turn clockwise to lock S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

25 Replacing shelf covers 2-9 Procedure 2-5 Installing a panel cover Use this procedure to install an environmental control panels cable organizer panel cover on the TS, or the OAM&P shelf or a cable organizer panel cover on the TBM shelf. This procedure describes how to install a particular panel. All other panels are similar. Requirements Tools and materials 1 screwdriver, slot, 5/16 in. 1 Place the notched plastic guide, which projects from the lower back portion of the cover, onto the corresponding brackets on the lower portion located on the side of the shelf, as shown in the following figure. FW-0417 Locking screws (turn clockwise to lock) Cover flap (open position) Push (or pull) the ball catch on this end to engage (or disengage) ACO/LT Critical Major Minor ESD Ground 2 Push the cover onto the mounting brackets until the cover fits tightly. 3 Open the orderwire access cover flap by flipping it down. 4 Secure the cover in place by turning the two locking screws clockwise. 5 Close the orderwire access cover flap. end Common Procedures Rel 14 Standard Feb 2001

26 2-10 Replacing shelf covers Procedure 2-6 Removing a panel cover Use this procedure to remove an environmental control panels cable organizer panel cover on the TS, or the OAM&P shelf or a cable organizer panel cover on the TBM shelf. This procedure describes how to install a particular panel. All other panels are similar. Requirements Tools and materials 1 screwdriver, slot, 5/16 in. 1 Open the orderwire access cover flap and turn the two locking screws counterclockwise to loosen the cover, as shown in the following figure. FW-0417 Locking screws (turn clockwise to lock) Cover flap (open position) Push (or pull) the ball catch on this end to engage (or disengage) ACO/LT Critical Major Minor ESD Ground 2 Gently pull the cover from the mounting brackets. 3 Store it in a clean area to avoid damaging it. end S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

27 Replacing shelf covers 2-11 Procedure 2-7 Installing an end guard on a bay Use this procedure to install an end guard on the first or last bay in a lineup. Requirements Before starting this procedure: install the bay in its proper position, as described in Installation Procedures, complete all cabling installation on the bay, as described in Installation Procedures, Tools and materials 1 screwdriver, slot, 5/16 in. 1 For an OAM&P bay or a TBM bay, attach the two supports to the side of the bay upright with two screws each, one at the top and one near the bottom, as shown in Figure For a Radio bay, attach the bottom support similarly. For the upper support, attach the support adapter to the bay using one screw as shown in Figure 2-4. Then attach the support to the support adapter with two screws. Insert one more screw to attach the support directly to the bay. 3 Attach the end guard panel to the supports with four screws, two at the top and two at the bottom, as shown in Figure 2-4. Use the special washer between the end guard and the screw head. 4 Snap a grey plastic cap over each screw onto the special washer. Note: The side of the end guard is equipped with a holder for an information sheet. 5 To access the information sheet, bend the plastic cover outward to allow the top and bottom edges to clear the retaining grooves, as shown in Figure 2-5. end Common Procedures Rel 14 Standard Feb 2001

28 2-12 Replacing shelf covers Figure 2-4 Installing an end guard on an OAM&P or TBM bay FW-1636 Support Special washer Screw Plastic cap Information sheet End guard S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

29 Replacing shelf covers 2-13 Figure 2-5 Installing or removing the information sheet FW-1637 End guard Plastic sheet Retaining groove Common Procedures Rel 14 Standard Feb 2001

30 2-14 Replacing shelf covers S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

31 3-1 Optical tests and procedures 3- This chapter contains procedures to clean and connect optical connectors, and to test and maintain the optical interfaces on the shelves. Task Cleaning optical connectors and adapters on patchcords and circuit pack faceplates Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) Cleaning and assembling optical connectors for VTM optical interface circuit packs (NT7E05) Page Measuring optical output power 3-26 Common Procedures Rel 14 Standard Feb 2001

32 3-2 Optical tests and procedures Procedure 3-1 Cleaning optical connectors and adapters on patchcords and circuit pack faceplates Use this procedure to clean ferrule (FC), subscriber (SC), and straight (ST) optical connectors or adapters on patchcords or on the faceplate of circuit packs. Clean all connectors and universal adapters inside and outside the circuit pack before installation, reconnection, or if dribbling errors occur during testing or in-service operation. To clean connectors and adapters inside circuit packs, see Procedure 3-2 on page Requirements Before you start this procedure, ensure the optical interface carries no traffic. (This procedure requires you to disconnect the fiber from the circuit pack.) The procedure requires the following material: lint-free, fiber-free, 100% polyester wiper (Texwipe TX404 absorbond) plastic bottle (Chemtronics or equivalent) certified particle grade, filtered through 0.2 (Chemical Supply House Isopropyl Alcohol, reagent grade) one fiber optic inspection microscope kit with 200X magnification or higher fiberscope (Noyes or equivalent) wipes pre-moistened with alcohol (Texwipe TX806 absorbond) mini foam swab in static safe package (Coventry, division of Chemtronics Mini Foam Swab P/N 48040) or adapter cleaning tips (AlcoaFL ACT-1) vinyl gloves self-contained fiber optic connector cleaner, miracreation polyester tape (AlcoaFL FCC-02 PREP) DANGER Risk of eye injury When handling optical fibers, follow the safety procedures in Safety guidelines on page 1-1, and those recommended by your company. Avoid direct exposure to a laser beam or fiber. Invisible light that can blind is present. Keep all optical connectors capped. continued S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

33 Optical tests and procedures 3-3 Procedure 3-1 (continued) Cleaning optical connectors and adapters on patchcords and circuit pack faceplates Disconnecting the optical patchcord 1 Loosen one of the two optical patchcords from the shelf fiber guides to provide sufficient slack. Disconnect the optical patchcord from the circuit pack. Connectors can be one of three kinds: ferrule (FC), the steel-threaded screw type (see Figure 3-1) subscriber (SC), the plastic snap-in type (see Figure 3-2) straight (ST), the bayonet press-and-twist type (see Figure 3-3) Note: To clean a fiber connector inside a circuit pack, Nortel Networks recommends unseating the circuit pack first. Then, use Procedure 3-2 to disconnect the optical adapter and connector inside the circuit pack. Do not clean the universal adapter while the connector is attached. Inspecting the optical connector 2 Insert the fiber into the fiberscope adapter to assess the cleanliness of the connector. 3 Turn on the light in the fiber scope. 4 Adjust the focus so that you can identify four different zones. See Figure 3-4 for single mode fiber zones. An example of a dirty fiber with oil, grease, or contaminates is shown in Figure 3-5. continued Common Procedures Rel 14 Standard Feb 2001

34 3-4 Optical tests and procedures Procedure 3-1 (continued) Cleaning optical connectors and adapters on patchcords and circuit pack faceplates Cleaning the connector ferrule 5 Take a new, lint-free cloth (TX-404) or a pre-moistened cloth (TX-806). Note: Never reuse cleaning cloths. Use new material for each connector and avoid contamination of the lint-free cloth by unclean surfaces. CAUTION Risk of vapor inhalation Always work in a clean, well-ventilated area to avoid prolonged inhalation of alcohol vapors. Use only small amounts of alcohol when cleaning optical connectors. 6 Moisten the lint-free cloth with one drop of alcohol in the middle of the cloth using the plastic squeeze bottle. 7 Put the end face connector in the middle of the wipe cloth. Applying moderate pressure, wipe the ferrule (or plug) by rotating the connector along the barrel and the ferrule (or plug) tip until the ferrule (or plug) squeaks. This action removes any contaminants on the ferrule (or plug). 8 While the ferrule is still wet with solvent, firmly wipe its end face and lateral surface with a new and dry lint-free folded cloth (TX-404). This action polishes off any residue remaining on the ferrule tip. Note: Do not allow the alcohol to dry on the ferrule. Alcohol can leave a residual film on the surface. 9 Fold a new lint-free cloth (TX-404) in half and put it on a flat, smooth, and clean surface. Remove any remaining particles from the end face by wiping in a figure S motion on the lint-free cloth. Do not use the same area of the cloth twice. Note: For a higher degree of cleanliness, or if a flat surface is not available, perform this step with an Alcoa Prep cartridge cleaner. Follow manufacturer instructions. 10 Reinsert the connector into a fiberscope and assess the cleanliness of the connector. If the fiberscope shows a clean fiber (see Figure 3-6), install a clean dust cap until ready to reconnect or go to step 11. If the connector still looks dirty, remove the connector from the magnifier and repeat steps 5 to 9. Note: If after multiple attempts, the fiber is still dirty or scratched, polish or replace the fiber. continued S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

35 Optical tests and procedures 3-5 Procedure 3-1 (continued) Cleaning optical connectors and adapters on patchcords and circuit pack faceplates 11 Place the connector directly into a cleaned universal adapter housing. This action prevents the ferrule from coming in contact with any type of contaminants after it is cleaned. To place the connector into a universal adapter housing, go to step 18. To change the connector, go to step 12 to clean the universal adapter for the new connector. Note: Do not place a clean connector in an adapter that has not been cleaned. Cleaning the universal adapter 12 Remove the protection caps, if present, from the universal adapter housing. See Figure 3-1 for an illustration of an FC connector and universal adapter sleeves. See Figure 3-2 for an illustration of an SC connector and universal adapter sleeves. See Figure 3-3 for an illustration of an ST connector and universal adapter sleeves. 13 Moisten a new mini foam swab or adapter cleaner tip with alcohol from a squeeze bottle. Alcohol from a pre-moistened wipe TX-806 can also be used. 14 Shake off excess alcohol. 15 Use the mini foam swab moistened with alcohol to scrub the alignment sleeve. Scrub with an in and out rotating motion. 16 Immediately wipe the sleeve with a new, dry mini foam swab or adapter cleaner tip. Note: Since the sleeve may still contain traces of alcohol, wipe it a second time with a new and dry foam swab or adapter cleaner tip to ensure cleanliness. continued Common Procedures Rel 14 Standard Feb 2001

36 3-6 Optical tests and procedures Procedure 3-1 (continued) Cleaning optical connectors and adapters on patchcords and circuit pack faceplates Cleaning the connector inside the circuit pack 17 If you are cleaning a connector inside an interface circuit pack inside a VTM circuit pack Then go to Procedure 3-2, Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) Procedure 3-3, Cleaning and assembling optical connectors for VTM optical interface circuit packs (NT7E05) Reconnecting the optical connector 18 Reconnect the optical connector to the universal adapter of the faceplate. If you are connecting an Then go to FC connector step 19 SC connector step 22 ST connector step Gently insert the ferrule into the universal adapter sleeve. Ensure that the guide pin enters the guide slot. See Figure Grasp the base of the connector to keep the ferrule from rotating. Gently screw the plug retainer onto the sleeve threads. Tighten the connection with your fingers. 21 Seat the tips of the fiber cables by gently pushing the base of the connector onto the plug. Repeat the procedure for the second connector and adapter. You have completed this procedure. continued S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

37 Optical tests and procedures 3-7 Procedure 3-1 (continued) Cleaning optical connectors and adapters on patchcords and circuit pack faceplates Figure 3-1 FC connector assembly Guide slot Ferrule tip (end face) Guide pin Base of connector or strain relief FW FW-3352 (TBM, 11) Ferrule Universal adapter sleeve Sleeve thread Plug retainer 22 Gently insert the ferrule into the sleeve so the guide pin enters the guide slot (see Figure 3-2). 23 Grasp the plug retainer and gently push it into the connector to lock it in. Repeat the procedure for the second connector and adapter. You have completed this procedure. Figure 3-2 SC connector assembly Plug retainer FW-2968 Sleeve Ferrule Guide pin Guide slot FW Gently insert the ferrule into the universal adapter sleeve. Ensure the guide pin enters the guide slot. See Figure 3-3. continued Common Procedures Rel 14 Standard Feb 2001

38 3-8 Optical tests and procedures Procedure 3-1 (continued) Cleaning optical connectors and adapters on patchcords and circuit pack faceplates 25 Rotate the plug retainer so the retaining pin enters the retaining groove. 26 Push the connectors together and seat the tips of the fiber cables by gently pushing the base of the connector. 27 Repeat the procedure for the second connector and adapter. Figure 3-3 ST connector assembly Connector internal to circuit pack Sleeve Ferrule Plug retainer Guide pin Base of connector or strain relief FW-3353(TBM,11) Retaining pin Retaining groove continued S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

39 Optical tests and procedures 3-9 Procedure 3-1 (continued) Cleaning optical connectors and adapters on patchcords and circuit pack faceplates Figure 3-4 Definition of inspection zones (single mode fiber) FW-4130 Zone B: Cladding Zone A: Core Zone D: Ferrule Zone C: Joint Legend: Zone A = Diameter of 25 microns - bigger than physical "core" Zone B = Diameter of 115 microns - "cladding" Zone C = Dark zone around the cladding - epoxy Zone D = White band - ferrule continued Common Procedures Rel 14 Standard Feb 2001

40 3-10 Optical tests and procedures Figure 3-5 Dirty fiber FW-4129 Figure 3-6 Clean fiber FW-4128 end S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

41 Optical tests and procedures 3-11 Procedure 3-2 Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) Use this procedure to clean optical connectors, or to remove, replace, or clean optical adapters, inside the interface circuit packs (NT7E01 and NT7E02). Clean all connectors and universal adapters inside and outside the circuit pack before installation, reconnection, or if dribbling errors occur during testing or in-service operation. To clean optical connectors connected to the faceplate of the interface circuit packs, see Procedure 3-1 on page 3-2. Requirements Before starting this procedure, ensure traffic is removed from the optical interface. (This procedure requires you to disconnect the fiber from the circuit pack.) The following material is required: lint-free, fiber-free, 100% polyester wiper (Texwipe TX404 absorbond) plastic bottle (Chemtronics or equivalent) certified particle grade, filtered through 0.2 (Chemical Supply House Isopropyl Alcohol, reagent grade) one fiber optic inspection microscope kit with 200X magnification or higher fiberscope (Noyes or equivalent) wipes pre-moistened with alcohol (Texwipe TX806 absorbond) mini-foam swab in static safe package (Coventry, division of Chemtronics Mini Foam Swab P/N 48040) or adapter cleaning tips (AlcoaFL ACT-1) vinyl gloves self-contained fiber optic connector cleaner, miracreation polyester tape (AlcoaFL FCC-02 PREP) one flathead screwdriver DANGER Risk of eye injury When handling optical fibers, follow the safety procedures in Safety guidelines on page 1-1, and those recommended by your company. continued Common Procedures Rel 14 Standard Feb 2001

42 3-12 Optical tests and procedures Procedure 3-2 (continued) Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) 1 Locate the release tab on the universal adapter carrier behind the circuit pack faceplate. See Figure 3-7. Figure 3-7 Universal adapter carrier release tab FW-3881 (TBM, 11) Universal adapter (SC to SC, SC to FC, or SC to ST) SC to SC connection inside the faceplate Release tab Latch Note: Circuit pack faceplate shown with SC connector installed (SC to SC universal adapter). continued S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

43 Optical tests and procedures 3-13 Procedure 3-2 (continued) Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) 2 CAUTION Risk of damaging equipment Remove the fiber patchcord and connector cap on the circuit pack connector, if present. Push the release tab in the direction of the arrow. See Figure Rotate the universal adapter carrier away from the circuit pack approximately 40 degrees. See Figure 3-8. Figure 3-8 Universal adapter carrier rotation FW-3882 (R14) Push Rotate 40 4 Grasp the plug retainer of the SC connector inside the circuit pack with your fingers. Do not pull on the fiber. continued Common Procedures Rel 14 Standard Feb 2001

44 3-14 Optical tests and procedures Procedure 3-2 (continued) Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) 5 CAUTION Risk of fiber damage Do not bend the fiber excessively when removing the plug retainer. The fiber is delicate and damages easily. In a straight direction with the universal adapter, gently pull the plug retainer to unlock it from the universal adapter. 6 Remove the ferrule from the sleeve. 7 Cap the optical connector of the internal fiber pigtail. 8 Push the retainer area on the universal adapter carrier behind the release tab in the direction of the arrow. Then rotate the universal adapter carrier past 40 degrees to 90 degrees. See Figure 3-9. Figure 3-9 Removing the universal adapter carrier FW-3883 (TBM, 11) Remove Rotate to 90 0 Retainer area SC to SC universal adapter Note: Rear view of the circuit pack faceplate shown with the universal adapter rotated up to 90 degrees (SC to SC universal adapter). continued S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

45 Optical tests and procedures 3-15 Procedure 3-2 (continued) Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) 9 Remove the universal adapter carrier by lifting it off the faceplate in the opposite direction of the arrow. 10 If present, remove both connector caps on the universal adapter. If you are Then go to replacing the universal adapter step 11 cleaning optical connectors and adapters step Remove the universal adapter from the carrier by deflecting the retaining arms and pulling in the opposite direction to the arrow. See Figure Figure 3-10 Universal adapter removal FW-3884 (R14) Pivot slot Retaining arms SC, ST or FC connector Universal adapter carrier SC connector Guide slot Universal adapter Note: Rear view of universal adapter carrier shown with SC to SC universal adapter removed. 12 Clean the replacement universal adapter. For cleaning instructions, see the section on cleaning the universal adapter in Procedure Install the cleaned replacement universal adapter in the carrier with the guide slot of the SC connector facing in the opposite direction of the arrow. Make sure the retaining arms lock the adapter in place. See Figure Go to step 16. continued Common Procedures Rel 14 Standard Feb 2001

46 3-16 Optical tests and procedures Procedure 3-2 (continued) Cleaning optical connectors and adapters inside interface circuit packs (NT7E01 and NT7E02) 15 Clean the universal adapter. For cleaning instructions, see Procedure Place the universal adapter carrier on the faceplate so that the pivot stud on the faceplate is aligned with the pivot slot on the universal adapter carrier. Make sure the carrier is perpendicular to the faceplate and the arrow points to the front of the circuit pack. See Figure 3-9 and Figure Rotate the universal adapter carrier until it latches into the open position, about 30 degrees from the faceplate. See Figure CAUTION Risk of fiber damage Do not bend the fiber pigtail excessively. The fiber is delicate and damages easily. Clean the SC connector inside the circuit pack. For cleaning instructions, see the section on cleaning SC connectors in Procedure To reassemble the SC connector inside the circuit pack: a. Grasp the plug retainer. b. Insert the ferrule of the connector into the sleeve of the universal adapter so that the guide pin enters the guide slot. c. Gently push the plug retainer into the universal adapter until it locks. 20 Gently push the retainer area on the carrier behind the release tab in the direction of the arrow. Then rotate the carrier until it locks into its closed position. To reconnect the patchcord to the faceplate, see the section on reconnecting patchcords in Procedure 3-1. end S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

47 Optical tests and procedures 3-17 Procedure 3-3 Cleaning and assembling optical connectors for VTM optical interface circuit packs (NT7E05) Use this procedure to clean and assemble ferrule (FC), straight (ST) and subscriber (SC) adapters, and SC low reflection connectors for singlemode fiber cables on a VTM circuit pack. Clean the connectors before final connection of fibers, every reconnection, or if dribbling errors occur during testing or in-service operation. Note 1: Always clean both connectors and the adapter sleeves. Note 2: When errors occur during testing or in-service operation, clean the optical patchcords as well. Requirements Before starting this procedure on an in-service system Ensure you remove traffic from the optical interface. (This procedure requires you to disconnect the fiber from the circuit pack.) Remove the cover from the shelf (see Procedure 2-2 on page 2-4). The procedure requires the following material: lint-free, fiber-free, 100% polyester wiper (Texwipe TX404 absorbond) plastic bottle (Chemtronics or equivalent) certified particle grade, filtered through 0.2 (Chemical Supply House Isopropyl Alcohol, reagent grade) one fiber optic inspection microscope kit with 200X magnification or higher fiberscope (Noyes or equivalent) wipes pre-moistened with alcohol (Texwipe TX806 absorbond) mini-foam swab in static safe package (Coventry, division of Chemtronics Mini Foam Swab P/N 48040) OR alternatively, Adapter cleaning tips (AlcoaFL ACT-1) vinyl gloves self-contained fiber optic connector cleaner, miracreation polyester tape (AlcoaFL FCC-02 PREP) one flat-head screwdriver long-nose pliers or tweezers lint-free pipe cleaners (as required) continued Common Procedures Rel 14 Standard Feb 2001

48 3-18 Optical tests and procedures Procedure 3-3 (continued) Cleaning and assembling optical connectors for VTM optical interface circuit packs (NT7E05) DANGER Risk of eye injury When handling optical fibers, follow the safety procedures in Safety guidelines on page 1-1, and those recommended by your company. Avoid direct exposure to laser beam or fiber. Invisible light that can blind is present. Keep all optical connectors capped. CAUTION Risk of a service loss This procedure can affect service. When cleaning pigtails attached to circuit packs, ensure circuit packs are not active. 1 Disconnect both patch cords from the VTM card. 2 Cap the ends of the patchcords with dustcaps. Remove the card 3 Pull out the fastener latches at the top and bottom of the circuit pack (see Figure 3-11). As you rotate the latches outwards, a cam pushes the card free of its backplane connection. 4 Pull the card from the shelf, and stand it on a clean, static-free work surface. continued S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001

49 Optical tests and procedures 3-19 Procedure 3-3 (continued) Cleaning and assembling optical connectors for VTM optical interface circuit packs (NT7E05) Figure 3-11 Pulling out the VTM card OS.0303 FW-3087 Latch Outer faceplate release(s) Latch VTM card 5 On both sides of the card, insert your index fingers into the two outer faceplate release holes (see Figure 3-11) and press to release the outer face plate. 6 Swing the outer faceplate outwards and up to the horizontal, until it clicks into place (see Figure 3-12). The inner faceplate is now exposed. 7 Lay the card on its side. continued Common Procedures Rel 14 Standard Feb 2001

50 3-20 Optical tests and procedures Procedure 3-3 (continued) Cleaning and assembling optical connectors for VTM optical interface circuit packs (NT7E05) Figure 3-12 Opening the outer faceplate FW Outer faceplate Swingdown faceplate release Carriers Inner faceplate Outer faceplate releases Disconnecting the optical pigtail connectors 8 Grasp the universal adapter carrier (Figure 3-13A) and pull it away from the SC connector. Once the adapter carrier disengages from the connector, the adapter carrier slides up its track. 9 Place a clean dustcap on the exposed end of the inner optical connector. Note: Do not use dust caps that have been in a dusty location, such as on the floor or in pockets. continued S/DMS TransportNode OC-3/OC-12 NE TBM Vol Rel 14 Standard Feb 2001