A. Pinouts
8820-A2-GN20-80
November 2004
A-3
Alarm In Connector
The ALARM IN connector (8820-S1-905) supports two alarm-in circuits.
Alarm Out Connector
The ALARM connector (8820-S1-902) or ALARM OUT connector (8820-S1-905)
consists of two sets of dry contact closures on an 8-pin jack. The Alarm leads
report major and minor alarms to a CO alarm system. The following table lists the
pin assignments for the 8-pin jack.
Pin Number
Use
1
Alarm Sense 1 +
2
Alarm Sense 1 –
3
Reserved
4
Reserved
5
Reserved
6
Reserved
7
Alarm Sense 2 +
8
Alarm Sense 2 –
04-17566
Pin 1
Pin 8
Pin Number
Use
1
Not Connected
2
Closed on Major Alarm
(Normally Open)
3
Common on Major Alarm
4
Open on Major Alarm
(Normally Closed)
5
Closed on Minor Alarm
(Normally Open)
6
Common on Minor Alarm
7
Open on Minor Alarm
(Normally Closed)
8
Not Connected
97-15449
Pin 1
Pin 8
Содержание 8820
Страница 1: ...8820 Broadband Access Concentrator Installation Guide Document No 8820 A2 GN20 80 November 2004...
Страница 10: ...Contents iv November 2004 8820 A2 GN20 80...
Страница 14: ...About This Guide viii November 2004 8820 A2 GN20 80...
Страница 20: ...1 Introduction 1 6 November 2004 8820 A2 GN20 80...
Страница 48: ...2 Installation 2 28 November 2004 8820 A2 GN20 80...
Страница 54: ...3 Cabling Line Card Tip and Ring 3 6 November 2004 8820 A2 GN20 80...
Страница 78: ...A Pinouts A 8 November 2004 8820 A2 GN20 80...
Страница 82: ...B Technical Specifications B 4 November 2004 8820 A2 GN20 80...
Страница 86: ...Index IN 4 November 2004 8820 A2 GN20 80...
