V.11/V.35 Front Panel - General DataComm OCM-2000 Installation & Operation Manual

Line Interface Modules

V.11/V.35 Front Panel

Table 4-8 shows the V.11/V.35 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 4-8 V.11/V.35 LIM Front Panel
Front Panel
In
Svce
Stand
By
In
Sync
Alm
Test
Dsbl
Rx Clk
Tx Clk
Gnd
V.11
LINE
INTFC
Note
The front panel features are the same for the V.11 and the V.35 LIMs.
036R340-000
Issue 16
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.
In Sync Green LED indicates that LIM has found subaggregate sync.
Local Alarm Red LED indicates a local alarm condition. Possible conditions are line
transmit clock bad, loss of subaggregate sync, or power-up self-test.
Test Yellow LED indicates module is performing power-up self-test or other
diagnostic test.
Disable Press to disable module before extracting it, or to force a redundant
switchover.
Test Points Rx Clk - Receive clock from line.
Tx Clk - Transmit Clock to line.
Office Connunications Manager OCM-1000/OCM-2000
Installation & Operation
V.11 and V.35 LIM
4-13