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Sub-addressing
Page 5 Modular Plus Programming and Feature Card for ISDN Terminals
Norstar supports sub-addressing on S-loops. This allows you to have one ISDN
extension number for several ISDN devices on the loop.
Once an ISDN device is installed, programme the device itself to recognize the sub-
addressing number assigned to it. See the instructions accompanying the device for
information on how to programme a sub-addressing number.
Transaction client
Called 0171 2754451 Sub 24
LAN
PSTN
S-loop with Sub-addressing
(maximum 8 devices on loop)
(2 B-channels per loop)
Transaction server
Data terminal
451 Sub 24
LAN
Data terminal
451
CCU
S-loop
Data terminal
451 Sub 25
Video terminal
453
Voice terminal
452
Group 4 Fax
454
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