Expansion Modules IP400 Digital Terminal 16/30 - Page 27
Expansion Modules
Dependent upon configuration requirements, combinations of the following Expansion Modules are
used with IP Office platforms. With the exception of the WAN3 module (see page 30), all of these
Expansion Modules are connected to the Expansion Ports of an IP Office platform using Expansion
Interconnect Cables (see page 61).

IP400 Digital Terminal 16/30

Front View (30 Port version)

Unit Status LED
Red = Alive but not init iated
Green = Running OK
DT Ports 9 - 16
DT Ports 25 - 30
Green LED
Connection OK
Y
ellow LED
(not used)
DT Ports 17 - 24
DT Ports 1 -8
Note: The IP400 Digital Terminal 16 Expansion Module is only equipped with the bottom row of
ports (1-16).
Port connections
• DT ports are used for connection to Avaya 2000 series telephones (see page 5) and support
either A-Law or µ-Law PCM encoding. Both DT and DS ports can be set for either µ-Law or A-
Law PCM encoding. At default both types of port are set to µ-Law but can be switched, in
software, to A-Law (refer to the Administration Manager Manual for details).
Using DT Line Cords (see page 56) and standard structured wiring, these RJ45 ports can be
extended to the required telephone location. In addition, converters can be used to provide BT
New Plan sockets (431A/631A) if required (see page 65). When devices are equipped with line
cords that terminate in RJ11 plugs, then RJ11/RJ45 adapters should be used.

Rear View (all versions)

EXPANSION
DTE
DC I/P
- C +
24V DC
2A
Expansion Port
DTE Port
DC Power I/P Socket
Port connections
• Expansion Port
Used to connect a Digital Terminal Expansion Module to the Expansion Port of an IP Office
platform.
• DC Power I/P Socket
Socket for the external 24V DC unregulated power supply (supplied with kit).
• DTE Port
A 25-way D-type socket. Used for connection to PC (diagnostics only).
Cables
All IP400 Office Digital Terminal/Digital Station variants are supplied with one blue Expansion
Interconnect cable. For Port Pinouts and Cables, refer to pages 51 and 55 respectively.
IP Office Installation Manual Expansion Modules - Page 27
40DHB0002USCL – Issue 7 (09/25/2002) IP400 Digital Terminal 16/30