Table of Contents
Advertisement
Chapter 4. Status
Network State
This field displays the current chart:
Condition
Normal
Alarm
In Test
Alarm State
This field displays the current alarm condition of the T3SU 300.
Possible conditions are given in the following chart:
Condition
Normal
Yellow
LOS (Red Alarm)
Blue (AIS)
OOF
Idle
4-2
Description
The T3SU 300 is ready to pass data.
The unit is currently receiving an alarm indication. See
A
S
the
field in this menu to determine the
LARM
TATE
alarm type.
The unit is currently in test mode. The
menu provides information on test type.
Description
No alarms are currently being received.
The unit is transmitting a yellow alarm from the
network. This alarm is a signal sent back toward the
source of a failed transmit circuit. The X-bits (X1 and
X2) are set to zero.
The unit has lost the Rx signal.
The unit is receiving a blue alarm condition from the
network. A blue alarm occurs when consecutive
1010s are received in the information bits. This
indicates that there is a transmission fault located
either at or upstream from the transmitting terminal.
The unit detects an out of frame condition from the
network.
The unit detects an idle sequence from the network.
Service is immediately available for use.
T3SU 300 User Manual
D
IAGNOSTICS
61200217L1-1
Advertisement
Table of Contents
