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Installation
A
R
C
LARM
ELAY
Connect alarm relay circuits to the shelf through the Alarm (D25F) connector. See
location of the Alarm connector. Refer to
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
(a) The system ID relay is activated when any alarm condition is present within the shelf (critical,
major, minor).
8
IRCUITS
Table 7
Table 7. Alarm (D25F) Connector Pinouts
Signal
Description
CRIT_AUD_NC
Critical Audible Relay, Normally Closed Contact
CRIT_AUD_COM
Critical Audible Relay, Common Contact
CRIT_AUD_NO
Critical Audible Relay, Normally Open Contact
CRIT_VIS_NC
Critical Visual Relay, Normally Closed Contact
CRIT_VIS_COM
Critical Visual Relay, Common Contact
CRIT_VIS_NO
Critical Visual Relay, Normally Open Contact
MAJ_AUD_NC
Major Audible Relay, Normally Closed Contact
MAJ_AUD_COM
Major Audible Relay, Common Contact
MAJ_AUD_NO
Major Audible Relay, Normally Open Contact
MAJ_VIS_NC
Major Visual Relay, Normally Closed Contact
MAJ_VIS_COM
Major Visual Relay, Common Contact
MAJ_VIS_NO
Major Visual Relay, Normally Open Contact
GND
Ground Relay
MIN_AUD_NC
Minor Audible Relay, Normally Closed Contact
MIN_AUD_COM
Minor Audible Relay, Common Contact
MIN_AUD_NO
Minor Audible Relay, Normally Open Contact
MIN_VIS_NC
Minor Visual Relay, Normally Closed Contact
MIN_VIS_COM
Minor Visual Relay, Common Contact
MIN_VIS_NO
Minor Visual Relay, Normally Open Contact
SYS_ID_NC
System ID Relay, Normally Closed Contact
SYS_ID_COM
System ID Relay, Common Contact
SYS_ID_NO
System ID Relay, Normally Open Contact
ALM_CMN_ELU
Bussed Major Alarm Relay, Common Contact From Each
Line Unit
ALM_NO_ELU
Bussed Major Alarm Relay, Normally Open Contact From
Each Line Unit
EXT_ACO
External Alarm Cut Off
January 31, 2003
below for the Alarm connector pinouts.
LTPE-UM-3157-01
Figure 2 on page 2
for the
(a)
(a)
(a)
EMS-830T
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