5
Use 8-pin terminal blocks (included) to connect the extension lines. Extension jacks 1 to 4 are available
for eXtra Device Port (XDP) connection. Extension jacks 5 to 8 are only for digital proprietary
telephones.
1. While pressing down on the hole at the top of the terminal block using a small flat type screwdriver,
insert the required telephone wire into the side hole as shown below.
2. Attach the terminal blocks to the extension connectors on the system.
Extension Connection
Push to open
Small flat type
screwdriver
Pull out
to fix
Push in the
Pealed Cable
5 mm - 6 mm
1
Jack no.
2
3
4
5 6 7 8
View of Extension
Connector (Jack 1 – 4)
View of Extension
Connector (Jack 5 – 8)
J a c k X - 1
J a c k
X - 2
J a c k X
H: High
A: A-wire
B: B-wire
L: Low
H: High
L: Low
To Extensions
(Jack 1 - 4(-1/-2), 5 - 8(-1) )
L H . .
L B A H . .
•
Before making the connection of the Extension Connector to the main unit,
extension lines should be checked carefully.
If the extension lines are connected to the main unit with those wires making a
short circuit between the H-L pins or A-B pins, it may cause a malfunction of
the system, or may damage the circuit of the system in the worst case.
Connections
