NEC 2400 PX Manuale Utente

NEAX2400 IPX Feature Programming Manual

Page 884

NDA-24297, Issue 1

D-41

Data Communication - CCIS

Operating Procedure (cont’d)

When cancelling the data connection

Press the DATA key on D

term

(a); the LCD of D

term

(a) restores the display of Time and Date.

Note:

If the opposite DTE is released, the buzzer on the Data Module/Data Adapter sounds three times.
Enter Release command RLS RETURN from the keyboard of the DTE. RLS and RELEASED are displayed
on the monitor screen. The data connection has been released.

Service Conditions

In Tandem Operation, the second T1 link does not have CCIS, so that a digital end-to-end connection
cannot be digital because no control signals are passed. In this case, MODEM Pooling (or use of DST
cards if installed) is necessary.

A data call originated from a DTE via the digital data line is valid only when the call is an LCR call. This
is also applicable to a tandem connection.

For 56 kbps synchronous data, a separate T1 channel with no voice capability is required.

Programming

STEP 1:

AMND

- The communication lineup to the office concerned is set up on an office code basis.

Note:

When originating a call from a DTE, whether a digital line is to be seized or an analog line is to be seized
must be determined.

STEP 2:

ARTD

- Assign the designation of an analog line or digital line. A/D = 0/1: Analog/Digital Line Data.

Assign the designation of multiple connection or non-multiple connection.
GW = 0/1: -/Non-Multiple Connection

Note:

For all the routes that may possibly be used in a call origination from a DTE, assign GW= 1 in advance.
Normally, GW is 0.

STEP 3:

AKYD

- Assign Feature Key data. Type:Function:DATA [29].

STEP 4:

AMND

- Assign A/D = 1.