Installation guide

Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification Unrestricted Page 39 of 84
Version 1 Status Issued
Last Editor Carl Rabe Date 11-Dec-2014
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 10 – I/O Board Front/Rear Connections