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Cisco Metro 1500 Series Hardware Installation Guide
78-10588-03
Chapter1 Product Overview System Modules
Four LEDs indicate the status of the RSM. Table1-6 describes these LEDs.
Optical Connectors of the RSM
Table1-7 lists the six optical connectors of the RSM. Figure 1-13 shows the front
panel of the RSM and its optical connectors.
Table1-6 RSM LED Descriptions
Label Color Description
On Green Power is on. No error is detected.
Red,
continuous A hardware error is detected.
Red,
blinking Loss of signal is detected on both remote lines of the RSM.
Both remote lines are broken or a hardware error is
detected.
A Green Line A is active.
Green,
blinking Line A is inactive. A takeover of the communication is
possible.
Red Line A is broken and active.
Red,
blinking Line A is broken and inactive.
B Green Line B is active.
Green,
blinking Line B is inactive. A takeover of the communication is
possible.
Red Line B is broken.
LkYellow RSM is locked to one line. No automatic switching is
possible.
Table1-7 RSM Optical Connector Descriptions
Label1Description
A/T Line A transmitter
A/R Line A receiver