Vertical SBX IP 320, Installation Manual

Page: 51 / 148

Installation of the CO Line & Extension Board 4
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11
Chapter 4: Board Installation
SBX IP 320 Installation Guide
CN13 Pin Assignment (Relay Contact)
Installation of the CO Line & Extension Board
CHB308 (3 CO Line and 8 Hybrid Interface Board/NTB417)
The CHB308 can be installed on the CN2 connector of the MBU or EMBU, and provides 3
CO/PBX Loop Start CO Line interfaces that support Pulse/DTMF signaling. Each interface
contains ring and loop current circuits, A/D and D/A conversions, and pulse signaling circuitry.
It also provides 8 Hybrid (8 DKTs or 8 SLT interfaces) ports, and can detect FSK signal for
incoming Caller ID, DTMF signal for incoming caller ID, call progress tone. It also provides
three on-hook connection paths for CID/SMS.
Table 4-15
Terminal SLT
CONNECTOR PIN NUMBER NO SIGNAL NAME
1, 2 N/A
3, 4 TIP, RING
5, 6 N/A
Table 4-16
CN13
CONNECTOR NO SIGNAL NAME
1 Relay 1 - pin 1
2 Relay 1 - pin 2
3 Relay 2 - pin 1
4 Relay 2 - pin 2
BOARD LINE
CONNECTOR
TYPE
DESCRIPTION CABLE
CHB308 3 CO & 8 SLT or 8 DKT RJ11 3 CO Line &
8 Hybrid
Interface
DKT : 4 wire
CO, SLT : 2 wire