Software Programming; Program Dedicated Mode - Nortel Meridian 1 Option 11C Manual

Software Programming

Program Dedicated mode

4 If the installation is a dedicated mode using leased line modem
configuration, the D-channel connects the DCHI with the far-end modem
over a dedicated leased line. The modems must have a minimum
transmission rate of 2400 baud and must support leased line capability
and synchronous mode, 2-wire or 4-wire operation.
Modems such as Ventel 2400 Plus II may be used. You must specify
4-wire operation when ordering, otherwise the modem is factory shipped
for 2-wire operation.
Note: The Hayes Smart modem 2400 cannot be used on leased lines.
5 If the installation is a dedicated mode using dial-up modem (such as
Hayes 2400, Ventel 2400 or Gandalf 2400) configuration, the DCHI is
connected to a modem that is connected to a 500 set line card. The call is
connected to the far-end via the 500 set-to-TIE trunk path.
Note: Dedicated mode using leased line modems is the preferred
method.
6 Set up the D-channel. Program the modem at one end in the auto-dial
mode, so it will automatically initiate a call to the other end at power up.
The auto-dial number must be coordinated with the far end switch. The
originating modem will have this auto-dial number stored internally as
part of the modem configuration routine. The far-end modem needs only
to be set-up for auto-answer.
Use this procedure to configure basic ISL capability.
The following programming applies to analog TIE trunks being used as
B-channels. When DTI/PRI trunks are also used, LD17 digital loop (DLOP)
and LD73 (digital data block-DDB) must also be configured with the
appropriate clocking and threshold settings.
ISL Implementation
Option 11C
Page 85 of 100
1.5 Mb DTI/PRI