Identifying Alarms; Figure 2-6. Alarm Relay Wire-Wrap Pins; Table 2-7. Alarm Pinouts - Network A And Network B - ADC HRM-238 List 2 User Manual

Chapter 2: Installation
I A
DENTIFYING LARMS
Alarm relay contacts for each management unit are shown in
alarm monitoring device per local practice.
NETWORK B
Alarm relay pins
NO C NC
GND EXT
ACO SYS ID
Alarm Type
MIN VIS
MIN AUD
MAJ VIS
MAJ AUD
CRIT VIS
CRIT AUD
SYS ID
(any Visual Alarm)
EXT ACO
2-10
Table 2-7
GND EXT NO C NC NO C NC
ACO SYS ID
NO C NC NO C NC NO C NC NO C NC NO C NC NO C NC
MIN AUD MAJ VIS MAJ AUD CRIT VIS CRIT AUD
MIN VIS

Figure 2-6. Alarm Relay Wire-Wrap Pins

Table 2-7. Alarm Pinouts - Network A and Network B

Pin Name
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
Input
Figure 2-6. Install wiring between these pins and an
describes the alarm relay pinouts.
NO C NC NO C NC NO C NC NO C NC NO C NC
MIN AUD MAJ VIS
MIN VIS
Alarm relay pins
NETWORK A
Description
Minor Visual Normally Open
Minor Visual Common
Minor Visual Normally Closed
Minor Audible Normally Open
Minor Audible Common
Minor Audible Normally Closed
Major Visual Normally Open
Major Visual Common
Major Visual Normally Closed
Major Audible Normally Open
Major Audible Common
Major Audible Normally Closed
Critical Visual Normally Open
Critical Visual Common
Critical Visual Normally Closed
Critical Audible Normally Open
Critical Audible Common
Critical Audible Normally Closed
System Visual ID Normally Open
System Visual ID Common
System Visual ID Normally Closed
Alarm Cutoff when Ground is applied
November 18, 2005
MAJ AUD CRIT VIS CRIT AUD
H0551-B
LTPH-UM-1315-01