Nortel Networks 553-3001-211 manual Selecting the proper mode for Gateway connectivity

Page 436 of 894 NT7D16 Data Access card

Note: If Call Detail Recording (CDR) is required, use separate outbound and inbound Modem Pools.

Mode 3

This mode should be selected when the DAC is connected to a Hayes-1200 modem for inbound Hotline operation. It is recommended that mode 1 be used for inbound Hotline operations if some other modem is available. However, if only Hayes-1200 modems are available, then this mode could be used as a last resort.

Configuring Hayes 1200 for mode 3

For Hayes 1200 modem, set the following parameters in LD11:

DEM DTE

PRM OFF

DTR ON

HOT ON

To configure this modem, set the configuration switches as follows:

•all switches to UP position, except for switch 4. Switch 7 should be UP when using RJ-11 jack.

Programing DAC for mode 3 in service change LD11

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.

Selecting the proper mode for Gateway connectivity

Select modes 4, 5, 6, and 7 when the DAC is connected to different types of gateways for inbound and outbound operations. The term gateway refers to any equipment that has the following characteristics:

•The equipment must be a DCE.

•The equipment does not drive RI lead (optional, the DAC ignores this lead).

•The equipment must drive DCD lead dynamically.

•The equipment drives DSR lead (optional).

553-3001-211 Standard 2.00 September 2004