Network Lim Front Panel - General DataComm OCM-2000 Installation & Operation Manual

Line Interface Modules

Network LIM Front Panel

Table 4-6 shows the Network LIM front panel and explains the function of each switch and
indicator. You can check the operation of each unit by monitoring the front panel indicators. The
colors of the LED indicators on the modules front panels are consistent in function:
• Red and yellow are used for alarms or "service-affecting" conditions. This includes test
modes that are interfering with normal user data.
• Alarm conditions depend on the modules, but normally, red indicates a Major Alarm (a
number of problems), and yellow indicates a Minor Alarm (channel alarms).
• The green LED indicators are used for all other conditions, including data activity and
E&M signaling leads.
Table 4-6 Network LIM Front Panel
Front Panel
In
Svce
Stand
By
Init
Local
Alm
Rmt
Alm
Test
Card
Fail
Dsbl
Rx Clk
Tx Clk
Gnd
T1
NTWK
LINE
INTFC
Note
The front panel features are the same for all models of the Network LIM (T1, CSU T1 and E1 models).
4-10
Item Description
In Service Green LED indicates when the channel is entered in the currently
active TDM configuration. This indicates that the module is operating.
Stand By Green LED indicates the module is configured, and ready to go into
service when needed.
Initialization Yellow LED indicates that the module is running boot firmware.
Local Alarm Red LED indicates an aggregate red alarm.
Remote Alarm Yellow LED indicates an aggregate yellow alarm.
Both local and remote LEDs on indicates AIS condition.
Test Yellow LED indicates module is performing power-up self-test or other
diagnostic test.
Card Fail Red LED indicates that module has detected an internal failure.
Disable Press to disable module before extracting it.
Test Points Rx Clk - Receive clock from line.
Tx Clk - Transmit Clock to line.
Office Connunications Manager OCM-1000/OCM-2000
Installation & Operation
Network Line Interface Modules
036R340-000
Issue 16