Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Security
classification Unrestricted
Page
44 of 92
Version
3
Status
Issued
Last Editor
Alan Doyle
Date
05-Oct-2017
Document Name
Stratos Outstation General and ICM Handbook Document No. 667/HB/52250/000
Copyright © Siemens plc 2014. All Rights Reserved. Mobility and Logistics is a division of Siemens Plc
Outputs
The I/O board outputs are volt-free fully isolated outputs that are compliant with
TR2523:2005 as follows:
•
Maximum ON resistance of 185Ohms.
•
When ON, an output is rated at 50mA maximum.
•
When OFF and output will withstand 75V DC continuous.
•
When OFF and output will present a resistance of greater than 100K Ohms.
•
The COMMON, NORMALLY OPEN and NORMALLY CLOSED contacts of each output
are isolated from any other.
The relay contacts are NOT rated for AC mains operation. The maximum
operating voltage for each relay contact is 75V AC/DC. The inter-relay
voltage must not exceed 150V AC/DC.
Figure 12 – I/O Board Front/Rear Connections