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NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 53
Data Communications - PRI D-121
Operating Procedure (cont’d)
Modem Pool to Modem Pool
Modem Pool-to-Modem Pool Connection
Asynchronous Data Terminal connected to a Data Module
1. Enter DM CALL <ENTER> on the DTE keyboard; READY is returned.
2. Enter the number of the remote DTE: DIAL XXXXX <ENTER>.
3. CALLING is returned and the local modem pool is transferred to ISDN.
4. WAITING is displayed until the call is answered.
5. The remote Data Module or Data Adapter manually or automatically answers the data call, and the remote
modem pool is connected between the called station and the ISDN network.
6. OPEN is returned to the calling Data Module.
7. The remote modem pool sends answer tone.
8. Both modems exchange carrier signals.
9. Data transmission can begin.
10. To terminate the data call, enter <ESC>-DM <ENTER>.
11. ACK is returned; enter RLS <ENTER> to disconnect from the Data Module.
12. RELEASED is returned when the data path is disconnected.
Asynchronous Data Terminal connected to a Data Adapter via a D
term
1. Press the VOICE line key to originate.
2. Dial the number of the terminal you want to call, XXXXXX.
3. XXX YY is displayed on the D
term
and the LED of the VOICE key lights (XXX=trunk type, YY=trunk
number). For example, DDD 36.
4. The remote Data Module or Data Adapter manually or automatically answers the data call, and the remote
modem pool is transferred in between the called station and the ISDN channel.
5. The remote modem sends answer tone.
6. On receipt of the answer tone, the D
term
user presses the DTX key.
7. WAIT D XXX YYY is displayed when the called terminal is idle (XXX=trunk type, YY=trunk number).
8. The local modem pool is transferred in between the D
term
Data Adapter and the local PRI channel.
9. Both modems exchange carrier signals.
10. READY D XXX YY is displayed on calling D
term
(XXX=trunk type, YY=trunk number).
11. Data transmission can begin.
DM or DA
(Async. Only)
Modem
Pool
DTE
PRI
NEAX2400 IPX
ISDN
DM or DA
(Async. Only)
Modem
Pool
DTE
PRI
NEAX2400 IPX