
Indicators
Passport 4400 Hardware Installation Manual
8-8
ISDN BRI Voice Module
The ISDN BRI Voice Module has three indicators (LEDs) located at the front of
the unit. These indicators are shown and described in the table below.
Figure 8-6. BRI Voice Module Indicators
Table 8-8. BRI Voice Module Indicator Functions
Indicator Function
Blinks
On
Off
B2
Green indicator
associated with
B-channel 2.
When connection
is being
established on
B-channel 2
When B-channel 2
connection is
established
When B-channel2
is not connected
B1
Green indicator
associated with
B-channel 1.
When connection
is being
established on
B-channel 1
When B-channel 1
connection is
established
When B-channel 1
is not connected.
D1
Green indicator
associated with
the D-channel
When port is in an
off-line or
diagnostics state
When port is on-
line and
operational
B2
B1
D1
Summary of Contents for Passport 4430
Page 8: ...viii ...
Page 10: ...About this document Passport 4400 Hardware Installation Manual x ...
Page 16: ...Introduction Passport 4400 Hardware Installation Manual 1 6 ...
Page 24: ...Installing the Passport 4400 Passport 4400 Hardware Installation Manual 2 8 ...
Page 56: ...T1 E1 and Digital Voice Modules Passport 4400 Hardware Installation Manual 5 16 ...
Page 84: ...Interface Modules WAN Passport 4400 Hardware Installation Manual 7 8 ...
Page 106: ...General Installation Passport 4400 Hardware Installation Module 10 8 ...
Page 148: ...Regulatory and Telephone Company Requirements Passport4400 Hardware Installation Manual B 16 ...
Page 158: ...Specifications Passport 4400 Hardware Installation Manual 10 ...
Page 164: ...T1 Voice Module Cabling Requirements Passport 4400 Hardware Installation Manual D 6 ...
Page 168: ...PBX Interface Connection Diagrams Passport 4400 Hardware Installation Manual E 4 ...
Page 175: ......