H3C Technologies H3C MSR 5600 - Manual (Page 42)

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Step Command Remarks
3. Configure a TDM clock source
for the T1 interface. tdm-clock { internal | line
[ primary ] }
The default is internal.
Configuring other parameters
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter T1 interface view. controller t1 number N/A
3. Configure a description. description text
The default is interface name
Interface.
4. Configure the framing format. frame-format { esf | sf } The default is esf.
5. Set the line coding format. code { ami | b8zs } The default is b8zs.
6. Set the cable type.
cable { long | 0db | -7.5db |
-15db | -22.5db | short | 133ft |
266ft | 399ft | 533ft | 655ft }
The default is long 0db.
7. Set the interframe filling tag
type.
itf type { 7e | ff } The default is 0x7E.
8. Set alarm thresholds.
alarm-threshold { ais { level-1 |
level-2 } | lfa { level-1 | level-2 |
level-3 | level-4 } | los
{ pulse-detection | pulse-recovery }
value }
By default:
• For LOS alarms, the threshold of
pulse-detection is 176 and the
threshold of pulse-recovery is
22. If the number of pulses
detected during the total length
of 176 pulse detection intervals
is smaller than 22 (the
pulse-recovery threshold), a
LOS alarm occurs.
• Both AIS alarm threshold and
LFA alarm threshold are level-1.
9. Enable loopback and set the
loopback mode. loopback { local | payload |
remote }
By default, loopback is disabled.
10. Restore the default settings for
the T1 interface.
default N/A
11. Bring up the T1 interface. undo shutdown By default, a T1 interface is up.
Configuring a BSV interface
A BSV interface can generate basic rate interfaces (BRIs) and digital voice interfaces.
• BRI—Has the same logical characteristics as an ISDN BRI but can be used for only voice
transmission. You can configure ISDN parameters on a BRI interface.
• Digital voice interface—Can be configured with voice commands. A digital voice interface has two
subinterfaces, which correspond to the two B channels. You cannot configure commands on the