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Chapter 4
Configuring the PA-4E1G
After including all of the configuration subcommands to complete your configuration, press
Step 7
Ctrl-Z—hold down the Control key while you press Z—or enter end or exit to exit configuration mode
and return to the EXEC command interpreter prompt.
Write the new configuration to NVRAM as follows:
Step 8
Router# copy running-config startup-config
[OK]
Router#
This completes the procedure for creating a basic configuration.
Customizing the Configuration
Use the privileged-level configure command to perform an advanced interface configuration. You will
need the following information to perform this configuration:
•
•
•
Caution
Always issue a clear interface command after altering the configuration of an interface, particularly
after changing a time slot or CRC4 setting.
This section contains the following topics:
•
•
•
Configuring Framed and Unframed Mode
The PA-4E1G supports both framed (G.704) and unframed (G.703) modes of operation; the default is
unframed operation.
To enable framed operation, you must specify the start and stop slots, separated by a hyphen, as follows:
timeslot 0/start-slot-31/stop-slot
Following is an example of using the timeslot command with a start slot of 1 and a stop slot of 13:
Router# timeslot 1-13
Nonconfigurable combinations of start and stop slots will be ignored, and the interface will be left
unchanged.
In framed mode, the system default is not to use time slot 16 for data. To use slot 16 for data, use the
ts16 command in addition to the timeslot 1-17 command, as follows:
Router# timeslot 1-17
Router# ts16
To restore the system default, use the no ts16 command.
OL-3065-05
Timing source for each new interface (a line-derived or internal clock signal)
Whether you will use framed or unframed mode on the interfaces
The cyclic redundancy check (CRC) you want to use
Configuring Framed and Unframed Mode, page 4-9
Configuring Timing (Clock) Signals, page 4-10
Configuring Cyclic Redundancy Checks, page 4-10
PA-4E1G Serial Port Adapter Installation and Configuration
Customizing the Configuration
4-9
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