D (At&C[0|1|2|3]) - W&T 58620 Manual

W&T
5.4.13 &D (AT&C[0|1|2|3])
Modem response to DTR option
Default setting: 2
Defines the effect of a level change on the DTR input on the
LAN-Modem. One of four functions may be selected:
• &D0
The LAN-Modem ignores the signal.
• &D1
If the LAN-Modem is in data mode,k an ON
places the modem in command mode. The ATO command
can be used to return to data mode.
• &D2
A change from ON
A new connection can only be established when an enable
level is present on DTR.
• &D3
Has the same function as &D2 but additionally it resets the
LAN-Modem. If the LAN-Modem is on data mode, a level
change on the DTR input is only recognized if it is present
for the time defined in S-register 25.
Subject to error and alteration
OFF breaks the existing connection.
r
Modem Operation
OFF change
r
55