Chapter 1 Product Overview
System Modules
1-20
Cisco Metro 1500 Series Hardware Installation Guide
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Optical data that is sent by the module on the remote side enters the remote
receiver of the local system through the DMX. The data is then electrically
transmitted to the local transmitter, which delivers the optical data.
WCMs with Settable Clock Recovery
The following transparent WCMs are available with settable clock recovery:
• High-speed WCM with 1062-Mbps clock
• High-speed WCM with 1250-Mbps clock
• Low-speed WCM with multiclock (WCM/LS-MC)
• High-speed WCM with low-speed multiclock (WCM/HS-LS-MC)
• High-speed WCM with 1062.5- or 1250-Mbit/s clock
(WCM/HS-MC1062/1250). The maximum remote receiver (R/R) input
power for this WCM is -7 dBm.
These WCMs are similar to the WCMs with clock recovery with the exception
that you can change the clock recovery data rate of WCMs with multiclocks.
You can set the clock recovery data rate using network management tools. For
more information, refer to the Cisco Metro 1500 Series Software Configuration
Guide.
Note Be sure to set and enable clocks, disable loopback, and enable
automatic mode for the RSM before installing and enabling the
Cisco Metro 1500 series systems.
See the “Clock Recovery Front Panel LEDs” section on page 1-19 for
LED descriptions.
