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Indicators Passport 4400 Hardware Installation Manual
8-7
Analog Voice Module and Universal Analog Voice Module
There are a total of six indicators associated with each voice/fax channel of both
the Analog Voice Module and the Universal Analog Voice Module. The following
figure shows and describes the functions of the indicators during normal
operation.
Note:
During network code download, each red indicator is turned
on and off sequentially for 1 second.
Figure 8-5. Analog Voice Module Indicators
Table 8-7. Description of Analog Voice Module Indicators
Indicator State Status
OK On Channel is in normal operating mode.
Flashing Channel is in fax mode.
Off Channel is inoperative.l
LO On E&M or FXS – channel is off-hook.
FXO outgoing call – second dial tone is heard.
FXO incoming call – call is answered.
Flashing Channel is in busyout state.
RO On Remote channel is attempting to contact local channel.
LS On Voice/fax traffic is flowing to remote end.
RS On Voice/fax traffic is obtained from remote end.
TM Always off
OK LO RO LS RS TM OK LO RO LS RS TM
Dual Channel
OK LO RO LS RS TM
Single Channel