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Indicators Passport 4400 Hardware Installation Manual
8-3
Digital Voice Channel Status Indicators
Indicators 1 through 6 represent, respectively, the status of the digital voice
channels B1 through B6, as follows:
Table 8-2. Digital Voice Channel Status Indicators
State Status
Off Digital Voice Module not installed or defective, or
power is off
Green Digital voice channel is connected, and active voice
call is in progress
Flashing green Test in progress
Quick-flashing green Download in progress
Amber Idle (both ends on-hook)
Flashing amber Fax call in progress
Red Waiting for code download
Flashing red Busy
Quick-flashing red Alarm/Test Failure