CANOGA PERKINS 2346 T3 Fiber Optic Modem - Manual (Page 27)

EdgeAccess Universal Chassis System
2346 T3 Modem 4-3
The front panel LEDs show both normal and fault conditions. Typically, if a LED is steady red, the
fault is in the local 2346; if it blinks red, the fault is in the remote modem. Additional information
about fault conditions appears in the System Alarms and System Configuration screens. To aid
troubleshooting, Table 1 lists the functions of the front panel LEDs. For details on the LED status
during normal start-up and operation, see Chapter 2.
Additional information about fault conditions appears in the System Alarms, Hardware
Configuration, and Functional Configuration screens.
Check a New Installation
On new installations, make sure that all steps in Chapter 2 are complete, then make these checks:
• The STA LED is green
• The fiber type (multimode or single mode) matches the 2346 optical mode
• All fiber cabling is of the same type; do not mix multimode and single mode cables
• The fiber optic cable is within the specifications and loss budget of the optic interface module
• The line length between the 2346 and the remote link does not exceed the allowable loss
budget or overdrive limit
• All host modules in the link are turned on
• All fiber cables are connected Tx to Rx and Rx to Tx
Alarms
The System Alarms screen reports alarms and faults on the 2346. To view current alarm status,
follow these steps:
1. From the Main Menu, type 3, Alarms, and press <Enter>. The System Alarms report appears.
2. To return to the Main Menu, press <Esc>.
Table 6. System Alarms Definitions
Item Reports. . .
Configuration Errors If the local and remote modems have incompatible set ups,
including software version
Fiber/Electrical Loss of Signal If optical or electrical loss of signal occurs
SQL Rx If squelch occurs
Chassis Management OK if 2346 is in managed chassis or N/A if in standalone
Alarm Relay Inputs Loss if CLS occurs or OK if signal is good; UCS 1001, only
Power Supply Primary/Secondary Function of main/second power supply
Chassis Temperature Excessive temperature
Fan Failure
Power-On Self Test OK or faulty hardware or software