5 specifications – Measurement Computing PC104-PDISO8 User Manual
Page 16

5 SPECIFICATIONS
POWER CONSUMPTION
+5V supply
0.11 A typical with all relays off.
0.4 A typical with all relays on.
OUTPUT RELAY SPECIFICATIONS
Number
8
Contact arrangement
5 form C, Relay 0 to Relay 4
3 form A, Relay 5 to Relay 7
Contact rating (resistive load)
0.4 A @ 120VAC or 2 A @ 30VDC
Contact resistance
0.050 Ohms max.
Coil resistance
125 Ohms
Operate time
5 ms
Release time
5 ms max.
Isolation
Between open contacts
1000VAC, 50/60HZ, 1 min.
Between coil and contacts
1500VAC, 50/60HZ, 1 min.
Life Expectancy
Mechanical
100,000,000 Operations
Electrical
500,000 Operations @ Full Load
ISOLATED INPUTS
Number 8
Type
Non-polarized, optically isolated (NOT TTL
compatible)
Range
DC
±24V
AC (50 to 1 kHz)
±24V
Input ‘High’ level
>5V min. (positive or negative input voltage)
Input
‘Low’
level
<2.5V max. (positive or negative input
voltage)
Isolation
500V
Resistance
455 Ohms min
Response
20
µ
s w/o filter
5 ms w/ filter
Filters
Time constant
5 ms (200 Hz)
Filter control
Each input individually switch-selectable
12