C&H Technologies M222 User Manual
Page 19
A-1
APPENDIX A: CONNECTORS
MAXIMUM
VOLTAGE/CURRENT:
The
maximum
voltage that may be applied to any connector on the M222 is
125 VDC, 141 VAC rms, or 200 VAC peak. These limits
apply only if the product is installed in a humidity-controlled
(<60% RH) environment where airborne contaminants and
transients are controlled, and there is NOT a relay
connection made to power mains. If these conditions
CANNOT be maintained, then the maximum voltage is 60
VDC, 43 VAC rms or 68 VAC peak.
The maximum current (non-inductive) that may be applied to
the M222 is:
Per Switch: 5 ADC, 5 AAC peak, 100W DC, 100VA AC
Per Module: 300W DC, 300VA AC
Pin # Use
Pin # Use
Pin# Use
1
CH0_NC
16
CH0_NC
31
CH0_NC
2
CH0_COM
17
CH0_COM
32
CH0_COM
3
CH0_NO
18
CH0_NO
33
CH0_NO
4
CH1_NC
19
NC
34
CH1_NC
5
CH1_COM
20
CH1_NC
35
CH1_COM
6
CH1_NO
21
CH1_COM
36
CH1_NO
7
NC
22
CH1_NO
37
CHGND
8
CH2_NC
23
CH2_NC
38
CH2_NC
9
CH2_COM
24
CH2_COM
39
CH2_COM
10
CH2_NO
25
CH2_NO
40
CH2_NO
11
CH3_NC
26
NC
41
CH3_NC
12
CH3_COM
27
CH3_NC
42
CH3_COM
13
CH3_NO
28
CH3_COM
43
CH3_NO
14
CHGND
29
CH3_NO
44
CHGND
15
CHGND
30
CHGND
NC = No Connection
Figure A-1. Front Panel I/O Signals
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