
Page 452 of 906
NT7D16 Data Access card
553-3001-211 Standard 3.00 August 2005
Mode 5
This mode should be selected when the DAC is connected to an auto-answer
gateway for inbound Hotline operation. In this mode, the DAC automatically
executes Hotline operation when DCD is driven ON by the gateway. If the
DM being called by the Hotline operation is busy or not answering, the DAC
will place repeated Hotline calls as long as the DCD lead is ON until the
called unit answers. The gateway used in this mode should have the following
features:
Auto-answer capability
This feature is required when the gateway is used
for inbound operation. It allows the gateway to drive the DCD lead ON when
the inbound data call is pending. In addition, the gateway should auto-answer
when the DTR lead is ON.
Dynamic control of DCD
This feature must be supported by all gateways to
be connected to the DAC. It allows the gateway to drive the DCD lead ON
when the data call is established, and OFF when the data call is disconnected.
The baud rate of the Hotline call is determined by the AUTB and BAUD
parameters in LD 11. The system should be programmed to allow inbound
modem calls only.
Programing DAC for mode 5 in service change LD 11
The DAC must be configured as R232 (the Autodial feature is used for this
mode). The DAC must not be configured as an ADM trunk.
Mode 6
This mode should be selected when the DAC is connected to a gateway that
requires DTR to be ON always except during call disconnection. In this
mode, the DAC can be used for both inbound and outbound operations. The
operation of this mode is similar to mode 4 except for the following:
•
The DTR lead is ON in the idle state.
•
The DTR lead will be dropped OFF for 0.2 seconds when an established
call is disconnected.
Содержание Circuit Card
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Страница 4: ...Page 4 of 906 Revision history 553 3001 211 Standard 3 00 August 2005...
Страница 18: ...Page 18 of 906 Contents 553 3001 211 Standard 3 00 August 2005...
Страница 78: ...Page 78 of 906 Overview 553 3001 211 Standard 3 00 August 2005...
Страница 100: ...Page 100 of 906 Acceptance tests 553 3001 211 Standard 3 00 August 2005...
Страница 156: ...Page 156 of 906 Option settings 553 3001 211 Standard 3 00 August 2005...
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Страница 384: ...Page 384 of 906 NT6D70 SILC Line card 553 3001 211 Standard 3 00 August 2005...
Страница 388: ...Page 388 of 906 NT6D71 UILC Line card 553 3001 211 Standard 3 00 August 2005...
Страница 533: ...NT8D02 and NTDK16 Digital Line cards Page 533 of 906 Circuit Card Description and Installation Figure 106 NTDK16 DLC...
Страница 544: ...Page 544 of 906 NT8D02 and NTDK16 Digital Line cards 553 3001 211 Standard 3 00 August 2005...
Страница 546: ...Page 546 of 906 NT8D03 Analog Line card 553 3001 211 Standard 3 00 August 2005...
Страница 564: ...Page 564 of 906 NT8D09 Analog Message Waiting Line card 553 3001 211 Standard 3 00 August 2005...
Страница 626: ...Page 626 of 906 NT8D14 Universal Trunk card 553 3001 211 Standard 3 00 August 2005...
Страница 680: ...Page 680 of 906 NT8D41AA Serial Data Interface Paddle Board 553 3001 211 Standard 3 00 August 2005...
Страница 694: ...Page 694 of 906 NT8D41BA Quad Serial Data Interface Paddle Board 553 3001 211 Standard 3 00 August 2005...
Страница 720: ...Page 720 of 906 NTAK09 1 5 Mb DTI PRI card 553 3001 211 Standard 3 00 August 2005...
Страница 734: ...Page 734 of 906 NTAK10 2 0 Mb DTI card 553 3001 211 Standard 3 00 August 2005...
Страница 744: ...Page 744 of 906 NTAK20 Clock Controller daughterboard 553 3001 211 Standard 3 00 August 2005...
Страница 762: ...Page 762 of 906 NTAK79 2 0 Mb PRI card 553 3001 211 Standard 3 00 August 2005...
Страница 768: ...Page 768 of 906 NTAK93 D channel Handler Interface daughterboard 553 3001 211 Standard 3 00 August 2005...
Страница 772: ...Page 772 of 906 NTBK22 MISP card 553 3001 211 Standard 3 00 August 2005...
Страница 844: ...Page 844 of 906 NTVQ01xx Media Card 553 3001 211 Standard 3 00 August 2005...
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Страница 884: ...Page 884 of 906 QPC841 Quad Serial Data Interface card 553 3001 211 Standard 3 00 August 2005...
Страница 906: ...Page 906 of 906 Appendix A LAPB Data Link Control protocol 553 3001 211 Standard 3 00 August 2005...
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