Nortel Communication Server 1000 Manual page 43

The port address numbers assigned to the NT5K75 and NT6D11AE
operating in expanded mode must not conflict with addresses assigned to
other I/O port types. To avoid potential conflicts and to simplify system
configuration, it is recommended that, in the expanded mode, the port
addresses for the NT5K75 and NT6D11AE avoid the standard mode range
(0-15) and be numbered in the range 16-159 instead.
Group H and later
Standard address mode (0-15) can be any of the following:
•
DPNSS1 (DDSL)
•
DASS2 (DDSL)
•
APNSS (LSSL)
•
Q.931 (DCHI)
•
ISL (DCHI)
•
SDI
•
ESDI
If the MSDL is used, standard mode can have a range of 0-63, and can be
any of the following:
•
Q.931 (DCHI)
•
ISL (DCHI)
•
ESDI
Expanded address mode (0-159) can be either of the following:
•
DPNSS1 (DDSL)
•
DASS2 (DDSL)
The expanded mode addressing has no impact on the standard mode
addressing; that is, DASS2 D-channel (DDSL) 7 in the expanded mode
can exist with the Q.931 D-channel (DCHI) 7 in the standard mode.
Theoretically, it is possible to have 64 addresses using the MSDL with
Q.931, ISDL, or ESDI, plus 160 addresses using the expanded mode for
DASS2 for a total of 224 addresses. In practise, however, there is a limit of
64 addresses using MSDL with Q.931, ISDL, or ESDI, plus 40 addresses
using the expanded mode for DASS2, for a total of 104 addresses.
Presently, MSDL does not support SDI ports on DASS2, so the likely
configuration would involve a mixture of standard mode addressing, MSDL
addressing, and expanded mode addressing for DASS2. Such an example
could be as follows:
Nortel Communication Server 1000
DASS2 Fundamentals
NN43001-571 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Introduction 43