R3303-HP HSR6800 Routers Interface Command Reference

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According to ANSI T1.107a, the framing format used by FEAC channels is bit oriented protocol (BOP).
At the startup of your device, FEAC signal detection is enabled while FEAC signal sending is disabled on
a T3 interface.
Disable FEAC signal detection before you configure far-end loopback to prevent loopback deadlock,
which might happen when the local end enables loopback after detecting the loopback code sent back
by the far end.
Examples
# Enable FEAC signal detection on T3 channel 1 of interface CPOS 2/0/0.
<Sysname> system-view
[Sysname] controller cpos 2/0/0
[Sysname-Cpos2/0/0] t3 1 set feac detect
# Enable T3 channel 1 of CPOS 2/0/0 to generate and send DS3 LOS alarm signals.
<Sysname> system-view
[Sysname] controller cpos 2/0/0
[Sysname-Cpos2/0/0] t3 1 set feac generate ds3-los
# Enable T3 channel 1 of interface CPOS 2/0/0 to send loopback code to the far end to place the
far-end in a line loopback.
<Sysname> system-view
[Sysname] controller cpos 2/0/0
[Sysname-Cpos2/0/0] t3 1 set feac generate loopback ds3-line
t3 set frame-format
Use t3 set frame-format to specify a framing format for the specified T3 interface on the current CPOS
interface.
Use undo t3 set frame-format to restore the default.
Syntax
t3 t3-number set frame-format { c-bit | m23 }
undo t3 t3-number set frame-format
Default
C-bit framing is adopted on a T3 interface.
Views
CPOS interface view
Default command level
2: System level
Parameters
t3-number: Number of a T3 channel on the current CPOS interface, in the range of 1 to 3.
c-bit: Specifies C-bit framing (G.704) for carrying maintainable information such as FEAC.
m23: Specifies M23 (G.752) framing.
Examples
# Configure M23 framing on T3 channel 1 on interface CPOS 2/0/0.