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440 NT7D16 Data Access card
incoming call. If the host drives the DTR lead ON all the time, incoming
calls are always immediately answered and the RI lead is not turned ON
by the DAC. If DM-to-DM protocol exchange is successful, the DAC drives
CTS, DSR, and DCD ON.
Dynamic control of DTR This feature is required only if the host must be
capable of releasing an established call. The host should be able to drop an
established data call by driving DTR OFF for more than 100 ms.
Note: If the PBDO parameter in LD 11 is ON, then Make Set Busy is
activated when DTR is driven OFF for more than five seconds.
In this mode, the DAC does not send any menus or prompts to the host.
However, the host can still originate an outgoing call by blind-dialing
(sending commands to the DAC without receiving echoes).
Programing DAC for mode 8 in service change LD 11 When used for
inbound or outbound host access, the DAC can be configured as R232 or
R422 in LD 11. When used for both inbound and outbound host access, the
DAC must be configured as R232 or R422. When the DAC is programmed
as station hunting, outbound host access should be in the opposite direction
to the hunting for inbound host access.
Note: If CDR is required, use separate outbound and inbound host
access.
Mode 9
Select this mode when the DAC is connected to a host and Hotline call
origination is required. In this mode, the host can Hotline to a specific data
unit by simply driving the DTR lead ON. The transition of DTR from OFF
to ON causes the DAC to Hotline to the Autodial DN. The hosts display
the following characteristics.
Dynamic control of DTR for call origination The host should be capable
of driving the DTR lead from OFF to ON to initiate the Hotline call. If the
host always drives the DTR lead ON (not capable of dynamic control), mode
11 should be used.
Dynamic control of DTR for releasing established calls This feature
is required only if it is required that the host be capable of releasing an
established call. The host should be able to drop an established data call by
driving DTR OFF for more than 100 ms.
Programing DAC for mode 9 in service change LD 11
The DAC must be configured as R232 or R422 (the Autodial feature is used
for this mode). The DAC must not be configured as an ADM trunk.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
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