Samsung DX-408 Installation Manual page 29

Modular Jack Pin Arrangement Layout
Connect the extension and trunk lines according to the following modular jack pin arrangement
layout.
Modular jack Pin
Printing number
1,2,7,8
BRI1
(DX-408i 3,6
only)
4,5
1,6
CO1.2
(DX-408
only)
2,5
3,4
1,4
SLI1
2,3
1,4
SLI2
2,3
1,4
SLI3
2,3
1,4
SLI4
2,3
Modular jack
Description
Printing
Reserved
BRI2
Tx1 (DX-408i
only)
Rx1
Trunk 2 power
failure transfer :
(DX408 only)
CO3.4
(DX-408
only)
Trunk 2
Trunk 1
Not Used
DLI1
Analogue
telephone port 1
Not Used
DLI2
Analogue telephone
port 1
Not Used
DLI3
Analogue telephone
port 1
Not Used
DLI4
Analogue telephone
port 1
2-13
Pin
Description
number
1,2,7,8 Reserved
3,6 Tx2
4,5 Rx2
Trunk 3 power
failure transfer :
1,6
(DX408 only)
2,5 Trunk 4
3,4 Trunk 3
1,4 Not Used
Digital keyset
2,3
port 1
1,4 Not Used
Digital keyset
2,3
port 1
1,4 Not Used
Digital keyset
2,3
port 1
1,4 Not Used
Digital keyset
2,3
port 1