User manual

A-1
APPENDIX A: CONNECTORS
MAXIMUM VOLTAGE/CURRENT. The maximum voltage
that may be applied to any connector on the M220 is 200
VDC, 125 VAC rms, or 175 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, 48 VAC-rms or 68 VAC-peak.
The maximum current (non-inductive) that may be applied to
the M220 is:
Per Switch: 2 ADC, 2 AAC peak
Per Module: 8 ADC, 8 AAC peak
Pin # Use Pin # Use Pin# Use
1 CH0_HI 16 CH3_HI 31 CH3_LO
2 CH0_LO 17 CH2_HI 32 CH2_LO
3 CH7_LO 18 CH1_HI 33 CH1_LO
4 CH6_LO 19 CH7_HI 34 GND
5 CH5_LO 20 CH6_HI 35 GND
6 CH4_LO 21 CH5_HI 36 GND
7 MUXA_LO_COM 22 CH4_HI 37 GND
8 MUXB_HI_COM 23 MUXA_HI_COM 38 GND
9 CH8_LO 24 MUXB_LO_COM 39 GND
10 CH9_LO 25 CH8_HI 40 GND
11 CH10_LO 26 CH9_HI 41 GND
12 CH11_LO 27 CH10_HI 42 CH15_LO
13 CH12_HI 28 CH11_HI 43 CH15_HI
14 CH13_LO 29 CH12_LO 44 CH14_LO
15 CH13_HI 30 CH14_HI
Figure A-1. Front Panel I/O Signals
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