T1/E1 Voice Module; Digital Voice Channel Status Indicators - Nortel Passport 4400 Series Hardware Installation Manual

Passport 4400 Hardware Installation Manual

T1/E1 Voice Module

There are 13 indicators associated with the T1/E1 Voice Module -- six for the
Digital Voice channels, and seven for the Voice Module.
6 5
Digital Voice Channel
Status Indicators

Digital Voice Channel Status Indicators

Indicators 1 through 6 represent, respectively, the status of the digital voice
channels B1 through B6, as follows:
State
Off
Green
Flashing green
Quick-flashing green
Amber
Flashing amber
Red
Flashing red
Quick-flashing red
11-2
4 3 2 1
Figure 11-3. T1/E1 Access Module Indicators
Table 11-2. Digital Voice Channel Status Indicators
Status
Digital Voice Module not installed or defective, or power is off
Digital voice channel is connected, and active voice call is in progress
Test in progress
Download in progress
Idle (both ends on-hook)
Fax call in progress
Waiting for code download
Busy
Alarm/Test Failure
T1: D2 D1 DT DA
E1: D2 D1 2T 2A
T1/E1 Status
Indicators
Indicators
XT XA AT
1T 1A AT