Analog Trunk - NEC SL2100 Getting Started Manual

SL2100 GETTING STARTED GUIDE

5.4 Analog Trunk

The Analog Trunk from Telco line is connected to the 3COIDB-C1 board.
The board provides RJ61 modular jack labeled Trunks/COI 1-3 for the trunk connections.
1. Insert the modular plugs of the trunk line cords into the analog trunk modular jacks on the board.
3COIDB
!! Ensure that you connect the 2 wires as shown otherwise the line will not operate correctly.
!! Use twisted pair telephone cable.
!! Fit lightning protectors to each line.
For connecting the Audio device, Door Box, General Purpose Relay, refer to the Hardware Manual.
40
Pin No.
1
2
3
4
5
6
7
8
Pin Function (COI:1-3)
Not Used
CO 3 (Tip)
CO 2 (Tip)
CO 1 (Ring)
CO 1 (Tip)
CO 2 (Ring)
CO 3 (Ring)
Not Used