Nortel Communication Server 1000S Installation And Configuration Manual page 286

Page 286 of 394
553-3001-201 Standard 2.00
1.5 Mb ISL implementation
Table 81
Dial-up modem requirements (Part 2 of 2)
Hardware
Modem
NTAK19BA
Figure 81
ISL in dedicated mode using dial-up modem
Small System
DCHI
500
line
TIE
TIE
September 2004
Comments
Modem capable of the following:
(such as Ventel 2400-33 or 2400
Plus II)
- minimum of 2400 baud
- synchronous operation
- modems are programmed such
that one modem originates the call
while the other auto-answers
- auto-dial capability
Four port break out cable.
modem modem
twisted twisted
pair
pair
ISL D-channel
ISL TIE trunks
Large System
DCHI
500
line
TIE
TIE
553-AAA1070