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Environmental Monitoring System (EMS-5X, 10X and OS) Instruction Manual
10
Item
Name
Notes
Relay Abbreviations
1
Configurable Relays
5 or 10 Configurable Relays
Relay terminals
are marked
NC | COM | NO
NO
= Normally Open
NC
= Normally Closed
COM
= Common
2
Interface Board
5 or 10 Zone Inputs
3
Watchdog Relay
Relay 15
4
Configurable Alarm / Fault Relay
Relay 14
5
Alarm Relay
Relay 13
6
Cable Break Relay
Relay 12
7
Common Alarm / Fault Relay
Relay 11
8
Interface Board Power
PL7
Mains Abbreviations
Communications Terminals
PL8
Mains terminals
are marked
L | E | N
L
= Live
E
= Earth
N
= Neutral
9
12/24 VDC Output Terminals
PL6
10
12/24 VDC Selector Switch
SW2
11
Reboot Relay Switch
SW1
12
230 VAC to 24 VDC Power Supply Unit
13
230 VAC Mains Cable Input Terminals
14
Spare / Unused Relay
Relay 16
Table 2:
EMS-X / OS Input-Output Connections