Dedicated Mode Using Leased Line - Nortel Succession 1000 Installation And Configuration Manual

Page 224 of 396
Figure 70
ISL in shared mode
Large System
DCHI
I R P
or MSDL
500 set
I R P
line card
TIE
I R P

Dedicated mode using leased line

553-3001-201 Standard 1.00
ISL installation
Shared mode is established through service change in LD17, prompt USR,
with the response SHA.
In the shared mode, the DCH can share signaling for no more than 382 (T1)
or 480 (E1) trunks, including digital and analog.
Originating site
autodial
Modem
QCAD42A
or NTND27
Twisted pair
must be configured as
In this configuration, the D-channel connects the DCHI or MSDL to a modem
which communicates with a far-end modem over a dedicated leased line. See
Figure 71 on page 225. A 2400 baud D-channel can support signaling for
approximately 382 (T1) or 480 (E1) trunks without non-call associated
messages.
Both modems should be set in the synchronous mode.
October 2003
Terminating site
autodial
Modem
Twisted pair
ISL D-channel
non-ISL trunks
Large System
QCAD42A
DCHI
P R I
or NTND27
or MSDL
500 set
P R I
line card
TIE
P R I
553-AAA0062