ROC364 Instruction Manual
3-37 Input and Output Modules Rev Jun/05
Pulse Input Isolated Module Specifications
FIELD WIRING TERMINALS
A: Not used.
B: Positive Pulse Input.
C: Negative Pulse Input.
INPUT
Type: Two-state, current-pulse sense.
Range: Inactive: 0 to 0.5 mA. Active: 3 to 12 mA.
Input Current: Determined by input voltage (Vi),
loop resistance (Rl) and scaling resistor (Rs):
I = (Vi – 1)/(2.2K + Rl + Rs)
POWER REQUIREMENTS
4.9 to 5.1 V dc, 2 mA maximum (supplied by ROC).
INPUT ISOLATION
Isolation: 100 MΩ minimum, input to output, and
input or output to case.
Voltage: 4,000 V ac (RMS) minimum, input to
output.
Capacitance: 6 pF typical, input to output.
Pulse Input Modules—Source and Isolated Common Specifications
INPUT
Scaling Resistor (Rs): 10 Ω supplied (see Input
Source Current equation to compute other value).
Frequency Response: 0 to 12 kHz maximum, 50%
Duty Cycle.
Input Filter: Single-pole low-pass, 10 µs time
constant.
VIBRATION
20 Gs peak or 0.06 in. double amplitude,
10 to 2,000 Hz, per MIL-STD-202 method 204
condition F.
MECHANICAL SHOCK
1500 Gs 0.5 ms half sine per MIL-STD-202, method
213, condition F.
WEIGHT
37 g (1.3 oz).
CASE
Solvent-resistant thermoplastic polyester, meets
UL94V-0.
Dimensions are 15 mm D by 32 mm H by 43 mm W
(0.60 in. D by 1.27 in. H by 1.69 in. W), not
including pins.
ENVIRONMENTAL
Meets the Environmental specifications of the ROC
in which the module is installed, including Temp-
erature, Humidity, and Transient Protection.
APPROVALS
Approved by CSA for hazardous locations Class I,
Division 2, Groups A, B, C, and D.
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