Installation guide
  Mobility and Logistics, Traffic Solutions 
Sopers Lane, Poole, Dorset, BH17 7ER 
Security classification  Unrestricted  Page  10 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 
1.4  Abbreviations 
AC  Alternating Current 
CPU  Central Processing Unit 
DC  Direct Current 
ELV  Extra Low Voltage 
ESP  Enhanced Serial Port 
GSPI  Siemens proprietary protocol - General Serial Peripheral Interface 
GPS  Global Positioning System 
HPU  ST900/950ELV High Power Unit 
IDB  Intelligent Detector Backplane 
I/O  Input / Output 
IP  Internet Protocol 
LED  Light Emitting Diode 
LV  Low Voltage (Mains) 
mA  milliamps 
MDU  ST800/900/950 Mains Distribution Unit 
MOVA  Microprocessor Optimised Vehicle Actuation 
ms  milliseconds 
NTP  Network Time Protocol 
OTU  Outstation Transmission Unit 
PSU  Power Supply Unit 
UTC  Urban Traffic Control 










