Manual
1-, 2-, and 4-Port T1/E1 HWICs and 8-Port T1/E1 Network Module
How to Configure T1/E1 HWICs and Network Module
7
Cisco IOS Release 12.4(11)XW5, and 12.4(20)T
DETAILED STEPS
Command or Action Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
network-clock-participate [slot slot-number |
wic wic-slot]
Example:
Router(config)# network-clock-participate wic 0
TDM group configuration only. Allows the ports on a
specified network module or interface card to use the
network clock for timing.
Step 4
controller {t1 | e1} slot/subslot/port
Example:
Router(config)# controller t1 1/0
Enters controller configuration mode. For interface
numbering conventions on the Cisco 2800 and 3800 series
routers, see the “Interface Numbering on Cisco 2800 and
Cisco 3800 Series Routers” section on page 3.
Step 5
framing {sf | esf}
or
framing {crc4 | no-crc4}
Example:
Router(config-controller)# framing esf
In T1 configurations, specifies super frame (sf) or extended
super frame (esf) as the frame type for data lines. Default is
esf.
In E1 configurations, specifies cyclic. redundancy check 4
(crc4) or no-crc4 as the frame type for data lines. Default is
crc4.
Step 6
linecode {ami | b8zs}
or
linecode {ami | hdb3}
Example:
Router(config-controller)# linecode b8zs
In T1 configurations, specifies alternate mark inversion
(AMI) or b8zs as the linecode. Default is b8zs.
In E1 configurations, specifies AMI or high-density
bipolar 3 (hdb3) as the linecode. Default is hdb3.
Note When using linecode AMI, the user is advised to
select 56 kbps as the speed or make sure that the
channel groups created do not contain all the
timeslots. See Step 12. This is to avoid exceeding
the “15 zeroes” threshhold specified by standards.
Step 7
fdl {att | ansi | both}
Example:
Router(config-controller)# fdl both
T1 only. Sets the facility data link (fdl) exchange standard
for T1 interfaces using esf framing. Can select the ATT
standard (ATT TR54016), the ANSI standard (ANSI
T1.403), or both standards. Default is ansi. To disable fdl,
enter the command no fdl.