EUD-2016026-00 Rev.2, SmartScanIS User’s Guide for Union Pacific, 14 January 2021
71
4.6.4 2300-300 Scanner Interface Board
The 2300-300 Scanner Interface board provides interface connections between the scanners
and the System Interface board. The cables from both bearing and wheel scanners are
terminated into their respective connectors on the Scanner Interface board. On-board relays
are used to control scanner heaters and shutters. Status LEDs are provided to indicate the
current state of the heaters, shutters, and supply voltages.
The figure below shows a Scanner Interface board (2300-300), with some important
components highlighted.
4.6.4.1 Power Connectors
The two-position shrouded header located in the upper left-hand corner provides a termination
point for the incoming 120 VAC wire harness. The two-position shrouded header located in
the lower left-hand corner provides a connection for the 24 VDC supply. These connections
are prewired at the factory.
4.6.4.2 Board-to-Board Connector
A 32-pin connector located on underside of the Scanner Interface board provides
board-to-board connections to the 2300-200 System Interface board.
Heater Fuses
Shutter Fuses
AC Heater Relay
DC Shutter Relay
Heater-Status LEDs
Power-Status LEDs
Shutter-Status LEDs
Wheel Scanner
Connectors
Bearing Scanner
Connectors
AC Connector
DC Connector
Heater Fuses
Heater Fuses
Shutter Fuses
AC Heater Relay
AC Heater Relay
DC Shutter Relay
DC Shutter Relay
Heater-Status LEDs
Power-Status LEDs
Shutter-Status LEDs
Wheel Scanner
Connectors
Bearing Scanner
Connectors
AC Connector
DC Connector
Wheel Scanner
Connectors
Bearing Scanner
Connectors
Bearing Scanner
Connectors
AC Connector
AC Connector
DC Connector
Summary of Contents for SmartScanIS
Page 1: ...EUD 2016026 00 Rev 2 SmartScanIS User s Guide for Union Pacific 14 January 2021...
Page 82: ...82 14 January 2021 SmartScanIS User s Guide for Union Pacific EUD 2016026 00 Rev 2...
Page 90: ...90 14 January 2021 SmartScanIS User s Guide for Union Pacific EUD 2016026 00 Rev 2...
Page 130: ...130 14 January 2021 SmartScanIS User s Guide for Union Pacific EUD 2016026 00 Rev 2...
Page 258: ...258 14 January 2021 SmartScanIS User s Guide for Union Pacific EUD 2016026 00 Rev 2...
Page 376: ...376 14 January 2021 SmartScanIS User s Guide for Union Pacific EUD 2016026 00 Rev 2...
Page 380: ...380 14 January 2021 SmartScanIS User s Guide for Union Pacific EUD 2016026 00 Rev 2...