Specifications

4-4
PA-8T-V.35 Synchronous Serial Port Adapter Installation and Configuration
OL-3563-03
Chapter 4 Attaching the PA-8T-V.35 Interface Cables
Determining the Port Mode
Router# show controllers cbus
slot9: VIP2, hw 2.0, sw 22.20, ccb 5800FFB0, cmdq 480000C8, vps 8192
software loaded from system
IOS (tm) VIP Software (SVIP-DW-M), Version 11.2(0.201), BETA TEST SOFTWARE
ROM Monitor version 17.0
Serial1/0, applique is V.35 DTE
gfreeq 48000140, lfreeq 480001B0 (1536 bytes), throttled 0
rxlo 4, rxhi 90, rxcurr 0, maxrxcurr 0
txq 48001A80, txacc 48001A82 (value 58), txlimit 58
[display text omitted]
To change the mode of a port online, use software commands to shut down the interface, replace the
compact serial cable, restart the interface, and (if necessary) reconfigure the port for the new interface.
At system startup or restart, the system polls the interfaces and determines the electrical interface type
of each port (according to the type of compact serial cable attached). However, the system does not
necessarily repoll an interface when you change the adapter cable online. To ensure that the system
recognizes the new interface type, shut down and reenable the interface after changing the cable.
If you are replacing a cable with a cable that has the same mode, these steps are not necessary (simply
replace the cable without interrupting operation).
Step 1 Enter configuration mode. At the privileged level of the EXEC, specify the port address and shut down
the interface. (See the “Using the EXEC Command Interpreter” section on page 5-1 for an explanation
of the privileged level of the EXEC.) Add additional configuration commands, if needed, before you exit
from configuration mode (before you press Ctrl-Z or enter end).
For a Cisco 7200 series, a Cisco 7100 series, a Cisco uBR7200 series, Cisco 7301 router, a
Cisco 7401ASR router, or a Catalyst RSM/VIP2, use the following example:
Router> enable
Password:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface serial 1/0
Router(config-if)# shutdown
Ctrl-Z
Router#
For a VIP, use the following example:
Router> enable
Password:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface serial 3/1/0
Router(config-if)# shutdown
Ctrl-Z
Router#
Step 2 Locate and remove the adapter cable to be replaced.
Step 3 Connect the new cable between the PA-8T-V.35 and the network connection. Tighten the thumbscrews
at both ends of the cable to secure it in the ports.
Step 4 Enter configuration mode again, bring the port back up, and save the running configuration to NVRAM.
For a Cisco 7100 series2, Cisco 7200 series, a Cisco uBR7200 series router, Cisco 7301 router, a
Cisco 7401ASR router, or a Catalyst RSM/VIP, use the following example:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface serial 1/0