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Cisco CWDM Passive Optical System Installation Note
78-16565-02
Connecting the CWDM Passive Optical System to Your System
Step 4 Connect the single-mode fiber-optic patch cable from the CWDM GBIC or CWDM SFP transceiver to
the OADM module EQUIPMENT connector. Connect the Tx ports to the Rx ports and the Rx ports to
the Tx ports to ensure that the system operates correctly.
a. If you are using CWDM SFP transceivers, use an LC-to-LC patch cable.
b. If you are using CWDM GBIC transceivers, you must use an SC-to-LC patch cable
(CAB-SM-LCSC-1M= or CAB-SM-LCSC-5M=).
Note CWDM GBIC transceivers are equipped with SC connectors. To make connections to the LC
connectors on the OADM modules, you must use an LC to SC patch cable (Cisco part number
CAB-SM-LCSC-1M= [1 meter cable], CAB-SM-=LCSC-5M= [5 meter cable], or an equivalent
patch cable).
Step 5 If you use both channels of the module, repeat Step 4 for the second channel.
Step 6 Connect the network west backbone single-mode fiber-optic cable to the NETWORK WEST connector
on the OADM module, and connect the east backbone single-mode fiber-optic cable to the NETWORK
EAST connector on the OADM module.
Step 7 If you are planning to monitor your network with an optical power meter or an optical spectrum analyzer,
connect your meter or analyzer to the MONITOR port on the OADM.
Connecting Cables to the CWDM 4-Channel OADM Module
Note Make sure that the CWDM GBIC or CWDM SFP transceiver color code matches the color of the OADM
port to which it is connected.
To connect the cables to the CWDM 4-channel OADM module, follow these steps (see Figure 18):
Step 1 Insert the CWDM GBIC transceivers or CWDM SFP transceivers into the appropriate modules on your
switch or router system if you have not already done so. For more information on installing CWDM
GBIC or CWDM SFP transceivers, refer to the Cisco CWDM GBIC and CWDM SFP Installation Note.
Note Always use single-mode fiber-optic patch cables to connect the CWDM OADM ports to the
CWDM GBIC transceivers or CWDM SFP transceivers.
Note CWDM GBIC transceivers are equipped with SC connectors. To make connections to the LC
connectors on the OADM modules, you must use an LC to SC patch cable (Cisco part number
CAB-SM-LCSC-1M= [1 meter cable], CAB-SM-=LCSC-5M= [5 meter cable], or an equivalent
patch cable).
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