V.35-Compatible Unit - Paradyne HOTWIRE 7924 User Manual

Monitoring the Unit

V.35-Compatible Unit

6-6
The green PWR LED lights whenever power is applied to the board. Loop LEDs
blink until the loop has been synchronized and then remain off.
T1 HDSL
TERMINAL
LED Meaning
Loop Bk A loopback has been initiated for testing the equipment connected to this
unit. Refer to Chapter 7,
PWR Power is applied to the unit.
FAIL The processor has halted and repairs are required.
Loop A When lit, this LED indicates that HDSL Loop A has failed.
When blinking, this LED indicates HDSL Loop A is synchronizing with the
far-end unit (as occurs when the units are coming up after a reset).
When not lit or blinking, Loop A is enabled and synchronized.
Loop B When lit, this LED indicates that HDSL Loop B has been disabled (only
Loop A is in use) or has failed.
When blinking, this LED indicates HDSL Loop B is synchronizing with the
far-end unit (as occurs when the units are coming up after a reset).
When not lit or blinking, Loop B is enabled and synchronized.
August 1997
Testing ,
for more information.
7900
97-15313
7924-A2-GB20-20