SPECIAL SPECIFICATION 1528 Add/Drop Multiplexor/Demultiplexor

Transcription

1 1993 Specifications CSJ SPECIAL SPECIFICATION 1528 Add/Drop Multiplexor/Demultiplexor 1. Description. This Item shall govern for the furnishing and installation of a SONET Add/Drop Multiplexor/Demultiplexor (ADM), including Network Management System (NMS) software and diagnostic unit, at designated enclosures as shown on the plans, as detailed in the Special Specifications and as directed by the Engineer. 2. Material. A. General Requirements. All materials furnished, assembled, fabricated or installed under this Item shall be new, corrosion resistant and in strict accordance with the details shown on the plans and in the Specifications. B. Functional Requirements. The ADM shall operate with standard SONET Optical Carrier 1 (OC-1) or Optical Carrier 3 (OC-3) optical data stream Per Bellcore GR-253 with a bit rate of Mb/s (OC-1) or 155 Mb/s (OC-3). The OC-3 ADM shall be of modular design consisting of a 19 in. rack mounted shelf with plug- in modules. The SONET ADM shall be designed to create a network topology consisting of a dual counter rotating fiber optic ring with two fiber strands The ADM shall provide 1:1 redundancy for the fiber optic interface and multiplex controller cards. The OC-1 SONET ADM shall have the capacity to carry 672 DS0 channels or 28 DS1 channels and shall utilize standard SONET Virtual Tributary (VT) mapping schemes. The OC-3 SONET ADM shall have the capacity to carry 2016 DS0 channels or 84 DS1 channels and shall utilize standard SONET VT mapping schemes. The OC-1 and OC-3 SONET ADM shall, as a minimum, have the capability to interface DS1, RS232, RS422, V.35, Ethernet, Video, and Voice by plugging modules into the SONET ADM shelf. The ADM shall be designed in such a way that asynchronous data channels may be multipoint drop and add functions. The device shall be capable of receiving selected data channels from the Control Center (drop) and of transmitting selected data channels back to the Control Center (add). In a multipoint data channel multiple asynchronous data ports may share the same DS0 channel on the network such that communications from the control center is dropped at all field locations. One field location may communicate to the control center at a time. The ADM shall also be capable of receiving and transmitting selected voice orderwire channels, each operating as a party line, to/from the Control Center and the communications hubs. Each ADM shall have the plug-in provisions, including connectors, for data and voice orderwire channel unit assignments as shown on the plans. Since each asynchronous data channel operates with a polled time division multiplexing scheme, the ADM may have asynchronous data channel ports sharing the same time slots as other ADM asynchronous data channel ports

2 The ADM shall pass signals from the remainder of the channels through to the Control Center as well as passing downstream signals from the Control Center on to the rest of the ADMS. All ADMs shall be connected to the fiber optic cable via fiber optic ports residing on the ADM control module. Each ADM shall have 2 control modules each with a transmit and receive fiber optic port. The entire SONET network will utilize 4 fiber optic strands to create a collapsed ring configuration that will be protected from power failure or ADM failure at any single location. The SONET ADM shall have the capability to operate in fold back mode so that if power fails at one location the ADM on each side of that location will fold back the signal on the fiber optic cable and continue to operate with full capacity. The equipment interface modules shall be hot swappable, so that they can be replaced without interrupting network traffic. The configuration of deployed modules should be available in a data base so that new modules can be configured with minimal downtime. 1. Equipment Interconnection. The communications hub shall contain the interconnections of the other communication and control devices to a communications interface, as well as, between the connections to the ADM and the fiber optic cable plant via the ADM fiber optic ports. Connection to the ADM I/O ports shall use twisted wire pairs and connectors based on the channel designations shown on the plans, using the standards of the communications interface(s) utilized. A consistent communications interface shall be employed so as to maintain communications integrity for the various interface types that are utilized. 2. Synchronization. The multiplexer shall have at least 4 different synchronization reference configurations including an external clock source, an internal stratum 3E clock source free- running and loop timing. 3. Optical Controller. The OC-1 and OC-3 controller cards should be designed to incorporate the optical and electrical transmitters and receivers in one card slot. One card should control the working ring with a second card managing the protect ring. These cards should each provide -48 Vdc power input to the shelf with diode protection to insure there is no interruption of service should one of the power sources fail. External housekeeping alarms must also be accommodated via each of the controller cards. Each card must provide inputs for at least 4 contact closure alarms and outputs for 4 outbound form C contact closures. These external alarms must be manageable from the NMS and programmable to allow an input alarm from one shelf to be mapped, via the SONET overhead, to an output at a different shelf. a. Optical Interfaces. The optical interfaces must provide a wide range of choices to match current network requirements and future expansion plans. Choices for multi-mode and single mode fiber with LED and Laser optics from 1310 nm to 1550 nm must be available. Power budgets must allow for distances from several kilometers up to 100 kilometers or more without repeaters. The ability to mix optical and electrical transmitters and receivers on each control card is also required. Fiber pigtails should be at least 15 ft. in length with connector choices that include FC, ST and SC

3 b. STS Interfaces. STS-1 transmitters and receivers must be available, as stated above. The controller card should allow them to be mixed with optical transmitters and receivers, i.e., microwave in and fiber out. C. Electrical Requirements. 1. Channel Capacity. The OC-1 ADM shall provide for receiving from and transmitting to any of the 672 DS0 channel time slots. The OC-3 ADM shall provide for receiving from and transmitting to any of the 2016 DS0 time slots. The SONET ADM shall employ standard SONET Virtual Tributary (VT) mapping and shall have the capability of utilizing all VTs in 64 kbps increments. 2. Mode of Transmission. Full duplex transmission shall be provided for each data and voice, and orderwire channel. 3. SONET Line Interface. Line rate shall be Mbps OC-1 and 155 Mbps OC-3. Line code shall be standard SONET per Bellcore GR Carrier Regeneration. Each ADM shall regenerate the SONET bit stream for transmission. 5. Interface Module Specifications. The manufacturer must supply a variety of interface cards as described below. Interface cards must be configured such that they do not automatically allocate bandwidth for channels until each port/channel is selected and provisioned from the NMS. All Interface cards shall contain nonvolatile memory to maintain mapping configuration, shelf number, slot number, serial number, model number, hardware and software revision numbers and hours of operations in case of power loss. a. Voice Orderwire Channel Interface. The voice orderwire channel all be a plug-in unit that provides a voice channel between nodes in the SONET network. This voice channel shall be optionally provisioned in the SONET overhead bandwidth or in one DS0 channel in the SONET payload along with other payload traffic. Each voice orderwire circuit shall provide front or rear access via a RJ-ll connector which will accept a standard telephone instrument. The orderwire unit shall also provide a 4 Wire Transmit Only (TO) connection on the rear access paddle card as well as connections for an external speaker. A ringing alert tone shall be provided by an onboard miniature loudspeaker. Each voice orderwire channel shall have a station address that is addressable via DTMF tones from another station. Via DTMF dialing any station may make a station to station call, station to group of stations call or all call. The installation shall include all the necessary cross-communications to link together each voice orderwire channel of the different SONET trunks in the system. b. Analog Voice Interface. This interface card is required to originate or terminate voice traffic to local telephone instruments or switching equipment

4 It must provide both 2-wire and 4-wire channel options that can be mixed on the same Interface card simultaneously. The configuration of the voice card must be field configurable so that circuits can be added or removed without replacing the entire module. Options for point-to-point auto ringdown circuits and a fully distributed telephone network via connections to a PBX or Central Office switch must be provided by this equipment, without the use of additional external equipment. This card must provide at least eight channels of full bandwidth voice traffic (64 Kbps/channel). The channel choices should be FXS, FXO and 4-Wire E&M signaling. The 2-Wire FXS and FXO interfaces must provide for 600 or 900 ohm impedance while the 4-Wire E&M interface should provide 600 ohms impedance. The physical connector for the voice card may be RJ-11 or 25 pair amphenol/rj21x. Bandwidth usage is a primary concern. To conserve bandwidth, this interface card must be configured such that inactive channels are not mapped into VT's to conserve bandwidth. Voice channel mapping must be available at the DS0 level. c. RS232 Data Interface. This interface card must support asynchronous pointto-point and multidrop communications. Any single RS-232 interface must support both multidrop and point-to- point communication simultaneously. Inactive channels must not be mapped into VT's. This interface should provide at least four individually configurable asynchronous data channels per card. Each channel must be individually programmable to support the following parameters: Data rate: 300 bps to 38.4 Kbps Data bits: 7 or 8 Parity: Odd, even or none Stop bits: 1 or 2 Handshake: DTR/DSR/CTS/RTS d. RS422 Data Interface. This interface card must support asynchronous pointto-point and multidrop communications. Any single RS-422 interface must support both multidrop and point-to- point communication simultaneously. Inactive channels must not be mapped into VT's. This interface should provide at least four individually configurable asynchronous data channels per card. Each channel must be individually programmable to support the following parameters: Data rate: 300 bps to 38.4 Kbps Data bits: 7 or 8 Parity: Odd, even or none Stop bits: 1 or 2 Handshake: DTR/DSR/CTS/RTS

5 e. RS449 Data Interface. This interface card must support synchronous pointto-point communications. This interface must provide at least 2 synchronous data channels per card. Each channel must be individually programmable for data rates from 300 bps to Mbps with internal clocking provided. Inactive channels must not be mapped into VT's. f. V.35 Data Interface. This interface card must support synchronous point-topoint communications. This interface must provide at least 2 synchronous data channels per card. Each channel must be individually programmable for data rates from 300 bps to Mbps with internal clocking provided. Inactive channels must not be mapped into VT's. g. T1 Interface. Both asynchronous (unframed) and byte synchronous (framed) T1 interface options must be provided. The interface module must use DS-0 grooming to map individual DS-0s from a byte sync T1 to an analog voice interface or in 64 Kbps increments (N x 56/64) to RS-449 and V.35 data interfaces. This interface card must provide at least four T-1 spans per card. It must also provide for selectable signaling of either AMI or B8ZS on each T-1 span. Inactive channels must not be mapped into VT's. h. Ethernet Interface. The Ethernet interface must be able to connect up to 64 LAN segments with up to 250 users per drop. It must be capable of mapping a 10 Mbps Ethernet signal into a SONET VT 1.5, 2,3,6 or multiples of these to allocate only the amount of bandwidth required. It must provide a multi-drop configuration rather than a point-to-point configuration. This interface card must be able to connect to a standard 10 Mbps Ethernet LAN (IEEE 802.3) and offer standard 10BaseT AUI and Thin net connections. i. Video Interface. This interface card should provide options to accept a standard analog NTSC video signal, digitize and compress the signal for transport across the SONET network, and translate it back into an analog NTSC signal at the far end. Each of these video signals should be manually scaleable via VT mapping in the NMS and combined with all all other voice, data and Ethernet traffic on the dual fiber ring as described in previous sections. The video interface should also provide options for accepting a data stream of commands to facilitate fast switching from a video control center. These optional commands should include camera and monitor number, video bandwidth, picture resolution and edge text. NMS set-up should provide for a pool of video bandwidth that is managed from a remote video control center via a multidrop data port (RS-422/485) on the Video Interface card. All camera (encoder) inputs shall be software switchable such that no bandwidth is consumed until a request for that camera has been received and provisioning completed. The video interface card should also contain a second data port (RS-232/422/485) for camera functions such as Pan, Tilt and Zoom (PTZ) control. This data port should be individually configurable for point-to

6 point and multidrop communications. The monitor (decoder) output must provide at least 3 simultaneous buffered outputs for each of the video channels. Each video interface card must be designed to provide an 8 by 1 or 8 by 2 video switch on the encoder end. It must also provide either 1 or 2 channels of video output at the decoder end with at least 3 buffered outputs for each channel. This card must additionally support the combination of 1 encoder and 1 decoder on a single card. The bandwidth for each video channel should be selectable from 1.5 Mbps to 6 Mbps. 6. Network Management. The OC-1/OC-3 ADM terminal shall support a Network Management System (NMS). The NMS shall be capable of reporting remote alarm conditions, support auto discovery, provisioning, and maintain a history log on maintenance alarms and conditions. The network management system must be able to manage the entire network from one location via a graphical point and click interface. The network architecture must allow for up to 127 nodes to be managed in one network. It should also be able to manage multiple rings from one NMS. A graphical representation of the entire network should be the top-level graphic with icons representing each node. Once the node is selected the graphic should display the entire contents and status of this node as if standing in front of the shelf. This should be a highly intuitive system with CD-ROM access to all system manuals to minimize training time. The NMS must be remotely manageable with multiple levels of password protection. Provisions for remote software download to any of the Controller or Interface cards must also be included to decrease downtime if a fault should occur. a. Alarm Indications. All equipment shall be designed to indicate any equipment failures or degraded performance by means of alarms. All equipment faults shall be indicated at the respective cabinet, shelf or module by an LED or lamp, preferably red in color, or by an alphanumeric display. It shall be possible to quickly and easily locate a faulty item of equipment by means of the built-in alarm indications. Visual alarms shall be reset only when the fault is cleared. The SONET OC-1/OC-3 Add/Drop Multiplexer shall be capable of supporting external alarm inputs. The alarm points shall be capable of reporting high or low temperature, open door alarms or other environmental alarm conditions. Each control card shall support at least 4 input/output contact closure alarms. These contacts must be able to accept input alarm data from external sources such as doors, windows, equipment failures, etc. And transfer it to a central network management alarm database. Input alarms must also be able to trigger an external device such as a siren, flashing light, buzzer, etc. At a Network Control Center or other location

7 b. Diagnostic Unit. The installation shall provide a 19 in. rack mount diagnostic unit comprised of the following equipment: * Intel Pentium II 200 MHz or better true compatible. * 32 Mb dynamic RAM. * One floppy disk drive of 120 Mb capacity, compatible with 1.4 MB disks, in 3.5 in. format. * One 1 Gb, minimum, hard disk drive with an average track to track access time less than 15 ms. * Eight RS-232-C ports. * One VESA SVGA compatible display interface. * One 17 in. color monitor compatible with the display interface provided. * One microsoft compatible mouse. * Latest version of MS-Windows. * MS-Windows compatible keyboard. The rack mount diagnostic unit shall be installed within 10 ft. of the terminating ADM(s) in the Control Center as shown on the plans. Connectors, cabling and interface devices required to successfully interconnect the diagnostic unit to the ADM(s) shall be included in the price bid for this item. 7. Fail Safe Provisions. The SONET ADM shall be designed to create a dual counter rotating ring network, even though the physical topology is linear the logical topology is a ring. In the event of power failure or ADM failure at one location the ADM on either side of that location will automatically switch into foldback mode providing a complete path for the rest of the network. The result will be the loss of only the one node where power has failed. 8. Power Requirements. The OC-1/OC-3 ADM terminal shall operate on a -48 VDC power system. In the event that -48 VDC power is not available the contractor shall provide a 115 Vac power supply that is approved by the ADM manufacturer. The 115 Vac power supply may be internal to the ADM or external 19 in. rack mounted and must meet the following minimum specifications: The ADM with 115 Vac power supply shall meet all of its specified requirements when the input power is 115 VAC ± 10% VAC, 60 ± 3 Hz. The maximum power required shall not exceed 300 Watts. The equipment operations shall not be affected by transient voltages, surges and sags normally experienced on commercial power lines. Installation shall include a check of the local power service to determine if any special design is needed for the equipment. The extra cost, if required, shall be included in the bid price of this Item. a. Primary Input Power Interruption. The equipment shall meet all the requirements in Section Power Interruption of the National Electrical Manufacturers Association (NEMA) Standard TS1, latest revision

8 b. Power Service Transients. The equipment shall meet the requirements of Sec , Transients, Power Service of the NEMA Standard TSl, latest revision. c. Wiring. All wiring shall meet the requirements of the National Electric Code. All wires shall be cut to proper length before assembly. No wire shall be doubled back to take up slack. Wires shall be neatly laced into cable with nylon lacing or plastic straps. Cables shall be secured with clamps. Cable slack shall be provided to facilitate the removal and replacement of assemblies, panels, and modules for maintenance. d. Transient Suppression. All DC relays, solenoids and holding coils shall have diodes across the coils for transient suppression. e. Power Service Protection. The equipment shall contain readily accessible, manually resettable circuit breakers for equipment and power source protection. Circuit breakers or fuses shall be provided and sized such that no wire, component, connection, PC board or assembly shall be subjected to sustained current in excess of their respective design limits upon the failure of any single circuit element or wiring. D. Mechanical Requirements. 1. Enclosure. The ADM shall be packaged in a sturdy, durably finished sheet metal housing suitable for mounting in standard EIA 19 in. racks. The SONET ADM shelf, OC-1 and OC-3 shall utilize a mid-plane design such that the electronic modules plug into the front of the shelf and all connections are made at the rear of the shelf via plug-in paddle cards. Card cages and all necessary accessories shall be provided for the configuration the system. Original Equipment Manufacturer (OEM) blank panels and/or covers shall be provided to cover the unused slots by insertion into the card frame. 2. Modular Design. The equipment shall be modular in design such that major portions may be readily replaced in the field. Modules of unlike functions shall be mechanically keyed to prevent insertion into the wrong socket or connector. All modules and assemblies shall be clearly identified with name, model number, serial number and any other pertinent information required to facilitate equipment maintenance. 3. Connectors and Harnesses. All external connections shall be made by means of connectors. The connectors shall be keyed to preclude improper hookups. All wires to and from the connectors shall be color coded and/or appropriately marked. The 19 in. card cage shall provide 14 separate card slots. For each data channel unit, a harness shall be provided with a DB-9 connector attached at the ADM interface end and the other end to the terminating transient

9 protection connections. Each voice orderwire channel shall have a harness with a RJ-ll connector at the ADM interface end and the other end to the terminating transient protection connections. Each unused connector shall be equipped with an individually removable plastic cover. 4. Environmental Design Requirements. The equipment shall meet all its specified requirements during and after subjecting to any combination of the following conditions. The equipment shall operate in an ambient air temperature range of -40ºF to +158ºF. The storage and transport temperatures shall range from -22ºF to +257ºF. The equipment shall operate in 5% to 95% non-condensing humidity. The equipment shall meet the following Altitude requirements: Operating: Storage: Transport: 9840 ft ft. 49,210 ft. 3. Construction Methods. A. General. The equipment design and construction shall utilize the latest available techniques with a minimum number of parts, subassemblies, circuits, cards, and modules to maximize standardization and commonality. The equipment shall be designed for ease of maintenance. All component parts shall be readily accessible for inspection and maintenance. Test points shall be provided for checking essential voltages and waveforms. B. Electronic Components. All electronic components shall comply with Special Specification Item, Electronic Components. C. Mechanical Components. All external screws, nuts and locking washers shall be stainless steel; no self-tapping screws shall be used unless specifically approved by the Engineer. All parts shall be made of corrosion resistant material, such as plastic, stainless steel, anodized aluminum or brass. All materials used in construction shall be protected from fungus growth and moisture deterioration. Dissimilar metals shall be separated by an inert dielectric material. D. Testing, Training, Documentation, and Warranty. Testing, training, documentation, and warranty of the Add/Drop Multiplexor/Demultiplexor shall comply with Special Specification Item, Testing, Training, Documentation, and Warranty. 4. Measurement. This Item will be measured as each unit furnished, installed, made fully operational and tested in accordance with these Special Specifications or as directed by the Engineer

10 5. Payment. The work performed and materials furnished in accordance with this Item and measured as provided under Measurement will be paid for at the unit price bid for ADM of the various types specified. This price shall be full compensation for all equipment described under this Item with all cables and connectors; and for furnishing all labor, materials, training and equipment necessary to complete the work