OfficeServ 7400 General Description
© Samsung Business Communications
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The components on the front panel of the TEPRI module have the following functions:
Table 2.8 Front Panel of TEPRI Module
Port / LED
Function Description
T1/E1/PRI
Ports for connecting T1/E1/PRI cables
SIO
UART port (for testing)
RST
Button for resetting TEPRI module
SYNC LED
Clock Synchronization
- On: the circuit is receiving the clocking signal and is synchronised
- Off: the circuit is not receiving the clocking signal and is not synchronised
LOS LED
Signal loss generation
- On: Signal loss generated
- Off: No signal loss generated
AIS LED
T1/E1 remote alarm generation
- On: Remote alarm generated
- Off: No remote alarm generated
L2 LED
Layer 2 operation
- On: PRI Layer2 operation normal
- Off: PRI Layer2 operation abnormal
IPC LED
Interface with upper module
- On: Working with LP40
- Off: Not working with LP40
CLK LED
This LED indicates whether this module is a master or slave.
- On: The module is receiving the clock signal from the network and is the mas-
ter clock source for the system.
- Off: The module is not receiving the clock signal from the network OR it is not
the master clock source for the system.
TP1 LED
T1 connection
- LED turns on when connected with T1
TP2 LED
PRI connection
- LED turns on when connected with PRI
