3Com 3032 Configuration Manual page 148

144 C 10: C
HAPTER ONFIGURING
WAN I
NTERFACE
module in slot 2. Hence, the E1-F interface will be numbered Serial 0, and the 4SA
interfaces will be numbered Serial 1 through Serial 4, and the T1-F interfaces will
be numbered Serial 5 and Serial 6.
2 Set Interface Rate after Binding Operation
When T1-F interface works in framed mode, time slot binding on the interfaces
can be made according to user's demands.
Perform the following configuration in T1-F interface view.
Table 157 Set interface rate after binding operation
Operation
Bind time slots on a T1-F interface
Restore the default setting for time slot binding on
the interface
By default, binding operation will be done on all the time slots on T1-F interface.
Unlike CT1/PRI interface, only one channel set can be bound on a T1/F interface,
and this channel set is associated with the current synchronous serial interface. On
a CT1/PRI interface, however, multiple channel sets can be bound, and the system
will automatically generate a synchronous serial interface accordingly whenever a
channel set is formed.
3 Set Length/Attenuation for Transmission Line
If a T1-F interface is connected to the transmission lines of various lengths, you
should match attenuation and waveform of the interface signals with the
transmission lines.
Perform the following configuration in T1-F interface view.
Table 158 Set length/attenuation of transmission line on a T1-F interface
Operation
Set the T1-F interface to use long-distance transmission
line
Set the T1-F interface to use short-distance transmission
line
Restore the default setting of the transmission line for
the T1-F interface
By default, attenuation matched a T1-F interface is long 0db.
4 Set Line Code Format
T1-F interface supports line code formats AMI (Alternate Mark Inversion) and B8ZS
(Bipolar 8-Zero Substitution).
Perform the following configuration in T1-F interface view.
Table 159 Set line code format for T1-F interface
Operation
Set line code format for a T1-F interface
Restore the default line code format for a T1-F interface
The line code format for an T1-F interface defaults to b8zs.
5 Set Line Clock
Command
ft1 timeslot-list { all |
range } [ speed { 56 | 64 } ]
undo ft1 timeslots
Command
ft1 cable long decibel
ft1 cable short length
undo ft1 cable
Command
ft1 code { ami | b8zs }
undo ft1 code