Figure 5-2 Modem Pool To Modem Pool - NEC NEAX 2400 IPX Programming Manual

2. Modem Pool to Modem Pool. (Illustrated in
DM or DA
DTE
(Async. Only)
• 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" will be 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
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
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
7. "WAIT D XXX YY" 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
9. Both modems exchange carrier signals.
10. "RDY D XXX YY" (for D
on calling D
11. Data transmission can begin.
Figure
PRI
Modem
Pool
PBX

Figure 5-2 Modem Pool to Modem Pool

term
term
term
Series III)/"READY D XXX YY" (for D
term
(XXX=trunk type, YY=trunk number).
NDA-24305
5-2.)
PRI
ISDN
Modem
Pool
PBX
term
and the LED of the voice key lights (XXX=trunk type,
user presses the "DTX" key.
term
Data Adapter and the local PRI channel.
DATA COMMUNICATIONS-PRI
DM or DA
DTE
(Async. Only)
;
term
Series E) is displayed
CHAPTER 5
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Revision 1.0