Issuing the AP command, CA, allows either the local or remote console operator to reconfigure the baud rate for the remote support modem port, the setting of the T1 RATE line, and the system identification. The AP accepts any configuration, making no judgment on the validity.
Using the CA command generates the following prompts:
CM>CA Return
Current remote support modem port configuration:
Bit rate 9600 bits/sec
Rate Select/CCITT 111 High rate (ON)
System identification: Joe's Sink and Pipe Shop
Do you wish to change the configuration? (Y/N): Y Return
Enter your changes. <CR> retains the current value.
Current bit rate is 9600 bits/sec. Select the new bit rate.
(0=300, 1=1200, 2=2400, 3=4800, 4=9600): Return
Rate Select (CCITT 111) is currently HIGH (ON). Choose the
new setting (H=high or ON, L=low or OFF): H Return
Current System identification: Joe's Sink and Pipe Shop.
New identification (limited to 1 to 24 displayable characters
or space for none): Yi's Jug and Bottle Shop Return
New configuration (takes effect at next remote connection):
Bit rate 9600 bits/sec
Rate Select/CCITT 111 High rate (ON)
System identification: Yi's Jug and Bottle Shop
CM>
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The baud rate for the remote console port can be set to 300, 1200, 2400, 4800,
or 9600 bits per second. This should be equal to the speed that is supported
by your modem (usually 2400).
The remote console port rate can be turned on or off.
ON is the high voltage and OFF is the low voltage,
within the definitions for control lines for both RS-232c and V.28.
The system identification is a displayable character ASCII string (24 characters maximum) that is stored on the AP, for the AP's exclusive use. The AP identification has absolutely nothing whatsoever to do with any other system identification stored elsewhere in the SPU. No other entity has access to it, and the AP has no access to any other system identification.
Enter up to 24 characters as the system identification.
Characters 00 hex through 1F hex are control characters and are not considered displayable. Entering a space at the system identification prompt deletes the previous identification string.
The new configuration is written to nonvolatile memory (NVM) at the end of command processing. It is not used until the next incoming call is answered and the configuration has been written to NVM. If CA is executed by a remote
user and the line is lost, the new configuration is still not in effect and the remote user can redial and pick up the process where the disconnection occurred.
For NVM failure, the configuration uses default parameters.
These values are 1200 bits per second, for the bit rate; rate select (CCITT 111) high; and system identification set to the null string.
If, during the configuration of the remote support modem, the AP encounters any unexpected or inappropriate input, it may respond with a combination of the following messages.
Expecting "Y" or "N" (APERR 11)
Expecting "H" or "L" (APERR 12)
String was truncated to 24 characters. (APMSG 04)
Your selection is outside of the legal range.
(APERR 14)
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