System Connection Diagram - NEC XN120 User Manual

System Connection Diagram

System Connection Diagram
The diagram shows the maximum size of the XN120 system with two expansion units connected to the main
unit.
The main unit must have the Applications Card installed (EXIFU-A1) to provide the connections for the
expansion units.
The table shows the maximum capacities of each unit within a one, two or three unit system. Refer to the
system capacity table on the previous page for any additional limitations.
XN120 Expansion
Power
cable
XN120 Expansion
Power
cable
Power
XN120 Main Unit
cable
008 Expansion Card
8 Extension ports
Installed onto the main board in the XN120 expansion
unit.
308 Expansion card
3 Exchange lines + 8 Extension ports
Installed onto the main board in the XN120 expansion
unit.
2PGDU card
2 Door phone units with relay contacts
2 Audio ports (External MOH and Paging)
DSPDB
Voice Mail and Voice response unit.
EXIFU
Serial, Ethernet, Expansion unit connection and
compact flash socket.
There is also an EXIFU with only the serial port.
4
Unit
Unit
9 analogue lines
24 Telephones
8 BRI circuits
1 2OPBOX
1 2PGDU card
9 analogue lines 9 analogue lines
24 Telephones 24 Telephones
8 BRI circuits 8 BRI circuits
1 2OPBOX 1 2OPBOX
1 2PGDU card 1 2PGDU card
1 EXIFU card 1 EXIFU card
1 DSPDB 1 DSPDB
Main unit
only
Optional Items
2OPBOX
For ISDN BRIU cards.
2 slots available per unit.
Plugs onto the right side of the XN120 expansion unit.
BRIU Card
ISDN Basic Rate cards (2 or 4 circuits available) can
be installed in the 2OPBOX.
64 Button DSS console
Provides 64 programmable keys and 14 fixed feature
keys.
Gives operator type functionality.
24 Button Add On console
Provides 24 additional function keys for the XN120
Vision phones.
9 analogue lines
24 Telephones
8 BRI circuits
1 2OPBOX
1 2PGDU card
9 analogue lines
24 Telephones
8 BRI circuits
1 2OPBOX
1 2PGDU card
9 analogue lines
24 Telephones
8 BRI circuits
1 2OPBOX
1 2PGDU card
1 EXIFU card
1 DSPDB
Main unit plus Main unit plus
one expansion two expansion
unit units
XN120 Expansion Unit Guide