Operating modes 443
The DAC drives CTS,DSR, and DCD ON, except when a call is dropped
or when control—Z is entered during the idle state. In this case, the DAC
drives those leads OFF for 0.2 seconds and then ON. When the DTR lead
is driven OFF by the terminal, the DAC does not executeautobaud nor
responds to any command.
Note: If the PBDO parameter in LD 11 is ON, then Make Set Busy is
activated when DTR is driven OFF formore than five seconds.
Programing DACfor mode 12 in service change LD 11
The DACmust be configured as R232 or R422 since Autodial, Speed Call,
and Display commands are likely to be used.
Mode 13
This mode should be selected when the DACis connected to a terminal
(DTE) and Hotline call origination is required. This mode is similar to the
operation of the ASIM when set to not-forced-DTR and Hotline. In this
mode, the terminal is able to Hotline to a specific data unitby driving the
DTR lead ON. The transition of DTR from OFF to ON causes the DACto
Hotline to the Autodial DN. Any terminal that drives DTR lead ON can be
used with this mode (such as VT100 or VT102).
The DAC drives CTS,DSR, and DCD ON, except when a call is dropped.
In this case, the DAC drivesthose leads OFF for 0.2 second and then ON.
The baud rate of the Hotline call is determined by the AUTB and BAUD
parameters in LD 11.
Programing DACfor mode 13 in ser vice change LD11
The DACmust be configured as R232 or R422 since Autodial, Speed Call,
and Display commands are likely to be used.
Mode 14
This mode should be selected when the DACis connected to a terminal
(DTE) for inbound and outbound data calls. This mode is similar to the
operation of the ASIM when set to forced-DTR andnot-Hotline. The terminal
used with this mode is not required to drive the DTR lead. This mode of
operation is similar to mode 12, except for the following:
•The status of DTR lead is assumed to be always ON, even when the
actual condition of that lead is OFF (forced-DTR). The DAC always
answers an incoming call regardless of the DTR status.
•The terminal cannot release an established data call by driving DTR
OFF.As a result, the terminal cannot initiate call release except with a
long break or three short breaks.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23May 2008
Copyright© 2003-2008, Nor tel Networks
.