
INSTALLATION
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2-1
SIG-00-07-11 SEPTEMBER 2012 (REVISED OCTOBER 2019)
Version No.: B.2
SECTION 2
INSTALLATION
2.0
INSTALLATION
WARNING
RAILROADS OR AGENCIES ARE RESPONSIBLE FOR
ENSURING ONLY PROPERLY TRAINED AND/OR AUTHORIZED
PERSONNEL HAVE ACCESS TO THE VIU-20.
PROGRAM CHANGES MUST BE PERFORMED IN ACCORDANCE
WITH RAILROAD PROCEDURES.
VERIFY THAT VIU-20 HAS ALL PROPER COMPONENTS AND IS
PROGRAMMED AS SPECIFIED BY 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.
AFTER INSTALLATION OF A UNIT, OR WHENEVER A CHANGE
IS MADE TO THE SOFTWARE OR THE CONFIGURATION (TO
INCLUDE MOVING THE ECD FORM ONE UNIT TO ANOTHER),
THE INSTALLATION SHOULD BE FULLY OPERATIONALLY
TESTED TO ENSURE SAFETY. SYSTEM OPERATION MUST BE
VERIFIED PRIOR TO PLACING SYSTEM IN SERVICE OR
FOLLOWING PROGRAMMING, HARDWARE CHANGES, OR
WIRING CHANGES.
2.1
GENERAL
The VIU is small and compact and can be wall, rack or shelf mounted inside a signal case.
NOTE
For applications other than what are described in this manual,
contact Siemens Mobility’s Application Engineering.
2.1.1 Mounting
Two mounting plate configurations are available for installing the VIU.
•
The rack or wall mounting plate contains holes that are spaced such that the VIU can be
mounted on relay rails (Figure 2-1).
•
A right-angle stabilizing plate is available for shelf mounting (Figure 2-2).