NEC NEAX2400 ICS, Руководство по программированию

Страница: 1066 / 1089

NEAX2400 IPX Feature Programming Manual
NDA-24297, Issue 1
Page 1023
Synchronous Data Switching - CCIS S-60
S-60 Synchronous Data Switching - CCIS
General Description
This feature allows a synchronous data terminal connected to a D
term
/Data Adapter to call a synchronous data
terminal connected to a synchronous D
term
/Data Adapter through the CCIS network.
Operating Procedure
To originate a synchronous data call from a D
term
equipped with a Data Adapter
1. Press the DATA key on the D
term
. The DATA lamp lights steadily and the LCD displays:
2. Dial the telephone number of the DTE.
3. The DATA lamp flashes. The LCD displays:
4. When the DTE answers, a communication path is established and the DATA lamp lights steadily.
To release from a data call
1. Press the DATA key.
2. The LED of the DATA key is extinguished and the call is disconnected.
To receive a data call at a D
term
equipped with a Data Adapter
1. When a data call is received, the DATA lamp flashes and the D
term
rings.
2. Press the DATA key to answer the call.
3. The DATA lamp lights steadily.
Note:
If the Data Adapter is set for AUTOMATIC ANSWER [D-18], no manual operation is required.
Service Conditions
1. SYNCHRONOUS DATA SWITCHING - CCIS supports transmission speeds of up to 56 Kbps.
2. A D
term
or Data Module must be used.
3. A synchronous data terminal connected to a Data Module can originate a call by using CCITT X.21, or
V.24 bis procedures, or by DATA HOT LINE [D-86]. Synchronous Data Modules can also be placed at
both ends of a fixed (Nailed Down) connection.
4. The calling and called DTEs must be code and speed compatible.
5. Synchronous DTEs connected to NEAX2400 IPX Data Modules or Data Adapters receive their timing
signals from the NEAX2400 IPX.
Interactions
1. When assigned, the DATA feature key acts as the telephone number of the data station.
2. The telephone number of the data station will only appear on one D
term
set.
3. The telephone number of the data station may be used as a DID number.
DATA
(Time Display)
Data
Port
READY D XXXX
(Time Display)
Data
Port