
INSTALLATION
2-1
Document No.: SIG-00-11-10 Version: A.1
SECTION 2
INSTALLATION
2
INSTALLATION
2.1
Installation Overview
The current sensor system consists of two components, the current sensor and an
optional current sensor adapter board. A typical three lamp signal installation is
shown in Figure 2-1.
Figure 2-1 Typical Three Lamp Signal Current Sensor Installation
WARNING
VERIFY ALL COMPONENTS AND WIRING ARE PROPERLY
INSTALLED AND MEET THE RAILROAD'S OR AGENCY'S
APPROVED WIRING OR INSTALLATION DIAGRAM.
FAILURE TO DO SO MAY LEAD TO INCORRECT OR
UNSAFE OPERATION OF THE SIGNAL SYSTEM.
CAUTION
SIEMENS MOBILITY, INC. STRONGLY RECOMMENDS
INSTALLING PRIMARY SURGE PROTECTION ON EXTERNAL
LINES CONNECTING TO THE VIU
.
NOTE
The WIU Current Sensor is not intended to be used for
current sensing of Pulse Width Modulated (PWM) lamp
detection.
Current Sensor Assembly
Existing Terminal
Board
Terminal Board Connection
with Current Sensor Adapter
To Lamp
To
Lamp Wire
Lamp Wire
Lamp Wire
3
Sensor
Connections