Table of Contents
Advertisement
Use of the Data ZAP Command to Clear a
Locked-up ADM
The following is a list of circumstances which can result in a lock-up condition between the
ADM and your data terminal or PC. Note, there may be other similar conditions which will
cause a lock-up as well.
If you inadvertently issue some Enhanced AT commands, subsequent commands, or even
keypad depressions on the voice terminal, they may be ignored or misinterpreted. This is
because Enhanced AT applications can be used to monitor and control both voice and data.
If the receive flow control option in the ADM is set to EIA and your data terminal or PC
does not implement the request to send EIA lead, the ADM will be permanently in a flow
controlled state.
If the autoadjust option is off and your data terminal or PC is running at a different speed
than the ADM, you will not be able to communicate.
If you inadvertently set the local.cr option to the space character, you will not be able to
set it back.
The Data ZAP command allows you to reset all the data options in the active profile to their
factory default (p0) values. It also loads the factory values for the profile independent data
options (speed, parity, and local mode) and the unstored data options (local.cr, local.lf, and
local.erase). The Data ZAP command does not, however, change the data options in the stored
profiles (p1 through p4). After you find the source of the lock-up, you will probably want to
change the value of that option in one of the stored profiles.
To perform the Data ZAP to load the factory (p0) data option values into the Active profile
follow this procedure:
Press
.
1
Select
This button may be labeled
Press
2
DATA/SEND/OFF
Enter the sequence 00 on the keypad of the voice terminal.
3
Troubleshooting
on older sets.
Shift/Select
.
Troubleshooting
7-1
Advertisement
Table of Contents
