Troubleshooting
9-33
9161-A2-GH30-40
April 1999
Digital Loopbacks
A Digital Loopback loops the digital voice signal received from the T1 interface
back to the same interface, just before reaching the D-to-A converter on the voice
port.
496-15200
to: T1 Interface
Digital Loopback
CODEC
D to A
Converter
The following tests cannot be running when a digital loopback test is initiated:
Analog Loopback, DRS or Quiet Test Tone on the same port
Analog Loopbacks
An Analog Loopback loops the analog voice signal received from the T1 interface
back to the same interface, after passing through the Digital-to-Analog converter
and Analog-to-Digital converter on the voice port.
496-15201
to: T1 Interface
Analog Loopback
CODEC
D to A
Converter
The following tests cannot be running when an Analog Loopback test is initiated:
DRS or Quiet Test Tone, or Digital or Line Loopback on the same port
Summary of Contents for 9261
Page 1: ...MODEL 916x 926x T1 ACCESS MUX TECHNICAL REFERENCE Document No 9161 A2 GH30 40 April 1999 ...
Page 34: ...Management and Control 2 6 9161 A2 GH30 40 April 1999 This page intentionally left blank ...
Page 54: ...User Interface 4 10 9161 A2 GH30 40 April 1999 This page intentionally left blank ...
Page 92: ...Setting Up 5 38 9161 A2 GH30 40 April 1999 Example Channel Allocation ...
Page 142: ...Security 6 10 9161 A2 GH30 40 April 1999 This page intentionally left blank ...
Page 252: ...IP Addressing B 8 9161 A2 GH30 40 April 1999 This page intentionally left blank ...