CHAPTER 2.
Ошибка! Используйте вкладку "Главная" для применения
제목
1,
장
제목
1 к тексту, который должен
здесь отображаться.
2-10
© SAMSUNG Electronics Co., Ltd.
Front View
The front view of TEPRIa voice trunk line board is shown in the figure below:
Figure 2.5 Front View of TEPRIa
The components on the front panel of TEPRIa have the functions below:
Table 2.6 Ports and LEDs of TEPRIa Board
Port, LED
Function Description
P1
Ports to connect T1/E1/PRI cables
LAN
Port connected to Ethernet
SIO
UART port (for test)
TP1 LED
Program type on operating in port1
- On: Port1 operation in PRI
- Off: Port1 operation in T1/E1
L21 LED
Layer 2 operation status
- On: Normal operation of Layer 2
- Off: Abnormal operation of Layer 2
AIS1 LED
Reception status of alarm bit from the counterparty switch
- On: Reception of alarm bit from the counterparty switch
- Off: No-reception of alarm bit from the counterparty switch
LOS1 LED
Signal loss status (LOS) from the counterparty switch
- On: Weak signal or signal loss from the counterparty switch
- Off: Normal signal reception for the counterparty switch
SYN1 LED
Frame synchronization status with the counterparty switch
- On: Out of synchronization with the counterparty switch
- Off: Synchronization with the counterparty switch
RUN LED
- On (Green): Normal operation (blink at the interval of 200 ms)
- On (Orange): Debug mode operation (blink at the interval of 200 ms)
CLK LED
On when the Reference clock is used as the system clock
RST
Button for resetting board
RST
TEPRIa
P1
AIS1
TP1
LAN
SIO
RUN
CLK
SYN1 LOS1
L21