5.5
50-Pin Alarm and Control Relay Connector
The connectors for discrete alarms and control relays are the two 50-pin connectors on the
NetGuardian 16A's back panel.
Pinout of the NetGuardian Amphenol labeled "Descretes 1-20/ Relays 1-4" or "Descretes 1-16/ Relays 1-8"
Discretes 1–20 or Discretes 1-16/Control Relays 1-8
RTN ALM
ALM 1
1
26
ALM 2
2
27
ALM 3
3
28
ALM 4
4
29
ALM 5
5
30
ALM 6
6
31
ALM 7
7
32
ALM 8
8
33
ALM 9
9
34
ALM 10
10
35
ALM 11
11
36
ALM 12
12
37
Note: "*" designates a build option for either 16 alarms/8 relays or 20 alarms/4 relays
Alarm and control relay connector pinout for the NetGuardian 16A
Alarm and Relay Connectors
RTN
ALM 13
13
ALM 14
14
ALM 15
15
ALM 16
16
*ALM 17 | CT5SW
17
*ALM 18 | CT6SW
18
*ALM 19 | CT7SW
19
*ALM 20 | CT8SW
20
ALM
38
39
40
Control Relays1-4 or 1–8
41
42
CTRL 1
43
CTRL 2
44
CTRL 3
45
CTRL 4
*CTRL 5
*CTRL 6
*CTRL 7
*CTRL 8
NO
NC
CO
21
46
47
23
48
22
49
49
24
50
50
25
42
42
17
43
43
18
44
44
19
45
45
20
13
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