Nortel Communication Server 1000S Installation And Configuration Manual page 285

Isdn primary rate interface
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Figure 80
ISL in dedicated mode using leased line
MG 1000S
DCHI
ISL D-channel
leased lines
modem
Analog/Digital
TIE trunks
Using dial-up modems
The requirements for using a dial-up modem are:
Table 81
Dial-up modem requirements (Part 1 of 2)
Hardware
NT8D09
NTAK02
ISDN Primary Rate Interface
1.5 Mb ISL implementation
modem
¥
¥
ISL
Comments
500 set line card.
D-channel Handler Interface
(DCHI) Card (for ISL mode).
Page 285 of 394
Large System
DCHI
DCHI
553-AAA1984
Installation and Configuration

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