7
Cisco CWDM Passive Optical System Installation Note
78-16565-02
Overview
WDM Splitter Cable (WDM-1300-1550-S=)
The WDM splitter cable provides bidirectional, multiplexing/demultiplexing for 1310-nm and 1550-nm
signals. The WDM splitter cable is a Y cable (see Figure 12) with a 1310-nm branch terminating in an
SC connector and a 1550-nm branch terminating in an LC connector. The common trunk branch of the
Y cable is terminated in an SC connector. The WDM splitter cable is 1 meter in length.
Figure 12 WDM Splitter Cable
CWDM GBIC and CWDM SFP Transceivers
The CWDM GBIC and CWDM SFP transceivers are hot-swappable input/output devices that link your
switching module to the CWDM passive optical system using a pair of single-mode fiber-optic cables.
The two transceiver types have different form factors and use different fiber-optic cable connectors.
Figure 13 shows a CWDM GBIC transceiver which uses an SC connector, and Figure 14 shows a
CWDM SFP transceiver which uses an LC connector.
Figure 13 CWDM GBIC
1300nm (1260-1360nm)
SC connector
Network
SC connector
1500nm (1460-1620nm)
LC connector
Splitter cable
(WDM-1300-1550-S=)
120107
1 Color label identifying laser wavelength 5 Optical bore dust plug
2 Alignment groove 6 Receive optical bore
3 Spring clip 7 Color dot identifying laser wavelength
4 Transmit optical bore
SINGLE-MODE
1000BASE-CWDM GBIC
CWDM-GBIC-1550=
2
5
6
1
7
3
4
84472
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