WDM-2 / WDM-2-M. User manual. 2-channel WDM / 2-channel WDM multimode. Rev. D

Transcription

1 2-channel WDM / 2-channel WDM multimode User manual Nevion Nordre Kullerød Sandefjord Norway Tel: nevion.com

2 Nevion Support Nevion Europe P.O. Box Sandefjord, Norway Support phone 1: Support phone 2: Nevion USA 1600 Emerson Avenue Oxnard, CA 93033, USA Toll free North America: (866) Outside North America: +1 (805) See for service hours for customer support globally. Revision history Current revision of this document is the uppermost in the table below. Rev. Repl. Date Sign Change description D MB Cover page update; DoC removed; no other changes to content AA / JRW New template RS Added information on multimode version RS Changed Laser Safety Precaution description 0 A NBS Renamed Optronics to Electronics & Rev. Control A RS Initial Revision nevion.com 2

3 Contents Revision history Product overview Specifications WDM Optical Electrical WDM-2-M Optical Electrical Configuration Mounting the connector module Preparation of module Applying signals to the connector module Operation Front Panel Status Monitoring Definition of coupler terms Single mode Couplers / Splitters Wavelength Division Multiplexers WDMs Laser safety precautions General environmental requirements for Nevion equipment Product Warranty Appendix A Materials declaration and recycling information A.1 Materials declaration A.2 Recycling information nevion.com 3

4 1 Product overview 1310nm nm WDM WDM 1310nm 1550nm Figure 1: Block diagram of the WDM module operation The Flashlink 2-Channel WDM is a wavelength division multiplexer / demultiplexer module for use together with the W03-C1 connector module. The unit is passive and there is no need for power or control. The optical multiplexing is made for the 2nd and 3rd optical windows (1310nm and 1550nm). The WDM has a 1310nm, a 1550nm and a combined WDM port allowing 2 optical signals to be multiplexed on a single fibre. The multi mode version is delivered in a box that must be mounted from the rear of the frame. The product comes with 2 SC/UPC fibre patch cords to connect the modules together. The product is available in the following versions: WDM-2 WDM-2-M 2-Channel WDM 2-Channel WDM multi mode nevion.com 4

5 2 Specifications 2.1 WDM Optical Optical wavelength: Optical bandpass: Transmission circuit fibre: Connector: Return loss: Insertion loss: Isolation: Directivity: Electrical Power: Control: 2nd & 3rd opt. window (1310nm & 1550nm) nm & nm 9/125um Single Mode SC/UPC better than 40dB w/single Mode fibre < 2dB incl. connectors (<1,2dB typ.) > 17dB > 50dB (> 55dB typ.) None None 2.2 WDM-2-M Optical Optical wavelength: Optical bandpass: Transmission circuit fibre: Connector: Insertion loss: Isolation 1310nm at 1550nm port: Isolation 1550nm at 1310nm port: Electrical Power: Control: 2nd & 3rd opt. window (1310nm & 1550nm) nm & nm 50/125um Single Mode SC/UPC < 1.5dB incl. connectors > 25dB > 12dB None None nevion.com 5

6 3 Configuration The WDM-2-M is a self-contained module where the connector module is attached to the box protecting the multi mode WDM. This is mounted from the rear of the frame. The below text is applicable for WDM-2 only. The WDM-2 has its own connector module: W03-C1. This module is mounted at the rear of the sub-rack. The module is shown in Figure 2. Figure 2: Overview of the WO3-C1 connector module 3.1 Mounting the connector module This section only applies if the module is not purchased pre-mounted in a sub-rack. The details of how the connector module is mounted, is found in the user manual for the sub-rack frame FR-2RU This manual is also available from our web site: Preparation of module Just before the module and the connector module are put together, the dust caps should be removed and stored in the enclosed plastic bag. The dust caps are removed from the connector module and the module card as we see in Error! Reference ource not found. and Error! Reference source not found.. nevion.com 6

7 Figure 3: Removal of the dust caps form the WDM connector module Figure 4: Removal of plastic dust caps from WDM module 3.3 Applying signals to the connector module Optical 1 is always the common port Optical 2 is for 1310 nm (2nd optical window). Optical 3 is for 1550 nm (3rd optical window) nevion.com 7

8 4 Operation The WDM-2 is an all optical module with no electrical connections; hence there will be no on-board processing or monitoring. If the module is faulty this can be monitored on the receiver end. The only possibilities for the module to fail are if either the fibre is broken, or the fibre connections at the rear are bad. Then no signal will pass the module. 4.1 Front Panel Status Monitoring The WDM-2 is an all optical module, so there are no LEDs on the module. Figure 5: The WDM-2 has no LEDs 4.2 Definition of coupler terms There are many different numbers related to both WDMs and couplers. We define here the most used terms Single mode Couplers / Splitters Figure 6: The ports of a coupler nevion.com 8

9 The coupler has 4 ports. Port 1 and port 2 are the input ports, port 3 and port 4 are the output ports. We assume the signal is entering the coupler via port 1. The optical effect in each port is denoted P1 to P4 respectively. We define the following terms: P4 Coupling ratio (%): P3 P4 P3 P4 Coupling loss (db): Port 3 10 log, Port 4 10 log P3 P4 P3 P4 P3 P4 Excess loss (db): 10 log P1 Thermal stability and Polarisation: The max change in coupling ratio through all specified temperature ranges and/or polarisation orientations. Insertion loss (db): Coupling loss + Excess loss + Polarisation effects (only single mode) Uniformity (db): Max insertion loss Min insertion loss Directivity (db): P2 10 log (With terminated outputs for no reflection) P Wavelength Division Multiplexers WDMs Figure 7: The ports of a 1310/1550 WDM Isolation (db): The optical power separation between the two wavelengths, assuming the input power is the same at the two wavelengths. Insertion loss (db): Excess loss + Coupling loss at 1310 nm and 1550 nm. Directivity (db): The same as defined for the coupler in section 5.1. nevion.com 9

10 5 Laser safety precautions These are guidelines to limit hazards from laser exposure. All the available EO units in the Flashlink range include a laser. Therefore this note on laser safety should be read thoroughly. The lasers emit light at wavelengths from 1270nm up to 1610nm. This means that the human eye cannot see the beam, and the blink reflex cannot protect the eye. (The human eye can see light between 400 nm to 700 nm). A laser beam can be harmful to the human eye (depending on laser power and exposure time). Therefore: Be careful when connecting / disconnecting fibre pigtails (ends). Never look directly into the pigtail of the laser/fibre. Never use microscopes, magnifying glasses or eye loupes to look into a fibre end. Use laser safety goggles blocking light at 1310 nm and at 1550 nm Instruments exist to verify light output power: Power meters, IR-cards etc. Flashlink features: The FR-2RU-10-2 is classified as Class 1 laser product according to EN :94/A11:96, and CFR Ch1 (1997) Part If the front panel is removed, the FR-2RU-10-2 is classified as Class 1 laser product according to EN :94/A11:96, and class IIIb according to CFR Ch1 (1997) Part Maximum output power 1 : Operating wavelengths: 5 mw > 1270 nm 1 Max power is for safety analysis only and does not represent device performance. nevion.com 10

11 General environmental requirements for Nevion equipment 1. The equipment will meet the guaranteed performance specification under the following environmental conditions: - Operating room temperature 0 C to 50 C range: - Operating relative humidity range: <90% (non-condensing) 2. The equipment will operate without damage under the following environmental conditions: - Temperature range: -10 C to 55 C - Relative humidity range: <95% (non-condensing) nevion.com 11

12 Product Warranty The warranty terms and conditions for the product(s) covered by this manual follow the General Sales Conditions by Nevion, which are available on the company web site: nevion.com 12

13 Appendix A Materials declaration and recycling information A.1 Materials declaration For product sold into China after 1st March 2007, we comply with the Administrative Measure on the Control of Pollution by Electronic Information Products. In the first stage of this legislation, content of six hazardous materials has to be declared. The table below shows the required information. Toxic or hazardous substances and elements 組成名稱 Part Name 鉛 Lead (Pb) 汞 Mercury (Hg) 镉 Cadmium (Cd) 六价铬 Hexavalent Chromium (Cr(VI)) 多溴联苯 Polybrominated biphenyls (PBB) 多溴二苯醚 Polybrominated diphenyl ethers (PBDE) WDM-2 / WDM-2-M O O O O O O O: Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ/T X: Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ/T This is indicated by the product marking: A.2 Recycling information Nevion provides assistance to customers and recyclers through our web site Please contact Nevion s Customer Support for assistance with recycling if this site does not show the information you require. Where it is not possible to return the product to Nevion or its agents for recycling, the following general information may be of assistance: Before attempting disassembly, ensure the product is completely disconnected from power and signal connections. All major parts are marked or labeled to show their material content. Depending on the date of manufacture, this product may contain lead in solder. Some circuit boards may contain battery-backed memory devices. nevion.com 13