OfficeServ 7400 General Description
© Samsung Business Communications
2-15
The components on the front panel of the TEPRI2 have the following functions:
Table 2.9 Front Panel of TEPRI2 Module
Port / LED
Function Description
P1
Port 1 for connecting T1/E1/PRI cables
P2
Port 2 for connecting T1/E1/PRI cables
LAN
Port for connecting to Ethernet
SIO
UART port (for testing)
TP1 LED
Indicates the type of program operated in Port 1
- On: PRI in operation
- Off: T1/E1 in operation
TP2 LED
Indicates the type of program operated in Port 2
- On: PRI in operation
- Off: T1/E1 in operation
L21 LED
L22 LED
Indicates the status of Layer 2
- On: Normal
- Off: Abnormal
AIS1 LED
AIS2 LED
Indicates the reception of the alarm bit of the remote system switch
- On: Alarm bit received
- Off : Alarm bit not received
LOS1 LED
LOS2 LED
Indicates the signal loss (LOS) of the remote system switch
- On: When signals are weak or have been damaged
- Off: When signals are received properly
SYN1 LED
SYN2 LED
Indicates the status of frame synchronization with the remote system switch
- On: No frame synchronized
- Off: Frame synchronized
RUN LED
LED green: When E1 operates normally (blink cycle of 200 ms)
LED orange: When T1 operates normally (blink cycle of 200 ms)
CLK LED
LED turns on when the reference clock is used as a system clock.
2.3.2.3 4BRI
The 4BRI module provides four ports for BRI-T/S connection. It transmits voice via the
trunk line and a channel transmits voice data at 64 kbps.
Main Functions
The 4BRI module performs the following functions:
y
Processes T or S signals by programming.
y
Processes the following signals by programming: Point to Point Normal, Point to Point
DDI, Point to MultiPoint.
y
Switchable Resistor Terminations (100
Ω
)
y
Endures the ITU-recommended level of surge.
y
Protects the output port by monitoring line signals.
y
Crystal-less wanders and jitter attenuation/compensation to TR62411.