Hardware reference guide

I/O Modules
35013379 02 October 2007 713
Specifications The following table shows the technical specifications for the 140DSI35300 module:
Specifications
Number of Input Points 32 in four 8 point groups`
LEDs
Active (Green) Indicates bus communication present
1 ... 32 (Green) Indicates point status
F (Red) External Supply missing
Required addressing 4 words in
Operating Voltage and Current
ON (voltage) +11 Vdc
ON (current) 2.5 mA min.
OFF (voltage) +5 Vdc
OFF (current) min. 0.3 mA ...1.2 mA
Absolute Maximum Input
Continious 30 Vdc
10 ms 45 Vp
Response time
OFF - ON 2.2 ms
ON - OFF 3.3 ms
Internal Resistance 4.3k
Input Protection Resistor limited
Isolation
Group to Group 500 VAC rms for 1 minute
Group to Bus 1780 VAC rms for 1 minute
Bus Current Required 250 mA
Power Dissipation 7 W (all points on)
External Power Supply +20 ... 30 VDC, 20 mA/group
Open–Circuit Monitoring
Broken–wire detection OFF current < 0.15 mA
Shunt resistor Recommended 56 kΩ with 24 Vdc external power
supply
Fusing
Internal None
External User discretion
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com