I
NSTALLING
THE
S
WITCH
3-16
Wiring Map for Alarm Cable
The signals include relay contacts for major and minor system alarms, and
external alarm inputs.
Table 3-2 Alarm Cable Wiring
Switch’s Alarm Port
Function
1 (MJR_ALARM_CNTR)
Common contact for major alarm relay.
2 (MNR_ALARM_CNTR)
Common contact for minor alarm relay.
3 (ALARM_IN3_EXT_P
*
)
* P indicates positive input.
External alarm input 3 (external relay dry
contact closure to pin 13).
4 (ALARM_IN4_EXT_P)
External alarm input 4 (external relay dry
contact closure to pin 8).
5 (No Contact)
6 (MJR_ALARM_NO)
Normally open during major alarm state.
7 (MNR_ALARM_NO)
Normally open during minor alarm state.
8 (ALARM_IN4_EXT_RTN
†
)
† RTN indicates return to Ground.
External alarm input 4 (external relay dry
contact closure from pin 3).
9 (ALARM_IN1_EXT_P)
External alarm input 1 (external relay dry
contact closure to pin14).
10 (ALARM_IN2_EXT_P)
External alarm input 2 (external relay dry
contact closure to pin 15).
11 (MJR_ALARM_NC)
Normally closed during major alarm state.
12 (MNR_ALARM_NC)
Normally closed during minor alarm state.
13 (ALARM_IN3_EXT_RTN) External alarm input 3 (external relay dry
contact closure from pin 3).
14 (ALARM_IN1_EXT_RTN) External alarm input 1 (external relay dry
contact closure from pin 9).
15 (ALARM_IN2_EXT_RTN) External alarm input 2 (external relay dry
contact closure from pin 10).
Содержание 7824M/FSW
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Страница 18: ...TABLE OF CONTENTS xviii E Ordering Information E 1 Glossary Index ...
Страница 40: ...NETWORK PLANNING 2 8 ...
Страница 58: ...INSTALLING THE SWITCH 3 18 ...
Страница 68: ...MAKING NETWORK CONNECTIONS 4 10 ...
Страница 72: ...TROUBLESHOOTING A 4 ...
Страница 80: ...CABLES B 8 ...
Страница 86: ...EXTENDER MODULES C 6 ...
Страница 96: ...ORDERING INFORMATION E 2 ...
Страница 102: ...GLOSSARY Glossary 6 ...
Страница 106: ...INDEX Index 4 ...
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