Manual PCI-IDO-48A Series
18
Chapter 7: Specifications
Outputs
Number of Channels:
48, 32, or 16
Load Voltage Range:
5VDC to 60VDC (Voltage supplied by User)
Load Current per Channel:
1A maximum steady state, 2A pulse (Note: Current may be
limited by the cable. Certain ribbon cables limit current
to 0.5A.)
Isolation:
On-Card Channel-to-channel and channel-to-computer
(* see Note)
Switching Time:
Turn-On 50µs
Turn-Off 5µs, inductive-spike protection via a diode
Switch Resistance:
0.4
Ω when saturated
Switch Leakage Current:
100 to 300µA
Power Required
+5VDC @ 245mA (48 bits)
External Trigger Input
Type:
TTL;
Pulled down to logic ground via 1k ohm resistor.
Active update on rising edge (in reference to logic ground,
requires a 2-wire connection, which is not isolated).
Configurable to reset outputs on falling edge.
High:
2.0V min.
Low:
0.8V max.
*Note on Isolation: Opto-Isolators and connectors are rated for at least 500V, but isolation voltage
breakdowns will vary and are affected by factors like cabling, spacing of pins, spacing between traces
on the PCB, humidity, dust and other environmental factors. This is a safety issue so a careful
approach is required. For CE certification, isolation was specified at 60V DC. The design intention
was to eliminate the influence of common mode. Use proper wiring techniques to minimize voltage
between channels and to ground. Tolerance of higher isolation voltage can be obtained on request by
applying a conformal coating to the board.
Environmental
Operating Temperature:
0°C to +70°C
Storage Temperature:
-40°C to +150°C
Humidity:
5% to 90% RH, non-condensing
Board Dimensions:
6.875
" (174.6mm) long, 4.2” ( 106.7mm) high
