Keyboard Dialing - Nortel Circuit Card 311 Reference

Mode of
operation Interface application
Mode 14 Terminal access for call
origination and answering
(with forced DTR)
Mode 15 Hotline call origination
(Virtual Leased Line)

Keyboard dialing

Keyboard dialing is an interactive dialogue mode between the connected
equipment and the DAC. This dialogue allows equipment to give dialing
commands to the DAC in order to make a data call to another far-end data
port. Keyboard dialing supports a modify mode that allows the user to
modify certain dialing parameters.
Copyright © 2003-2008, Nortel Networks
.
Comments
DTR ON, the DAC does not try to establish another
Hotline call unless the terminal sends a <CR> while
DTR is ON.
Call disconnection:
Disconnection is identical to mode 12.
Terminal access for call origination and
answering:
The DAC operation is identical to mode 12 except
that DTR is considered to be always ON, even when
the terminal is driving DTR OFF.
Call disconnection (DAC):
If the local DM user drops the call, the DAC turns
DSR, DCD, and CTS OFF for 0.2 second and then
ON.
Call disconnection (terminal):
The terminal sends a long break or three short
breaks. The DAC turns DSR, DCD, and CTS OFF for
0.2 second, and then ON.
Hotline call origination by terminal:
The DAC operation is similar to mode 13 except the
terminal initiates the Hotline call by driving DTR ON.
However, if the called DM is busy or not answering,
the DAC continuously tries to originate Hotline calls
once every 40 seconds (as long as DTR remains ON)
until the Data Module answers the call.
Call disconnection:
Disconnection is identical to mode 12.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Keyboard dialing 453