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Union Switch & Signal DIGITAIR 6695 Maintenance Notice

End-of-train telemetry

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UNION SWITCH & SIGNAL

645 Russell Street

Batesburg, SC 29006

MAINTENANCE NOTICE

DIGITAIR

Solid-State Motion Detector Modification

July, 1999

Printed in USA

End-of-Train Telemetry

SBU Model 6695 End Unit

(P/N: N24610101)

MN-99-006

An Ansaldo Signal Company

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Page 1 UNION SWITCH & SIGNAL 645 Russell Street MN-99-006 Batesburg, SC 29006 MAINTENANCE NOTICE ® DIGITAIR End-of-Train Telemetry SBU Model 6695 End Unit Solid-State Motion Detector Modification (P/N: N24610101) An Ansaldo Signal Company July, 1999 © 1999, Union Switch & Signal Inc. Printed in USA...
Page 2 MAINTENANCE NOTICE ® DIGITAIR SBU Model 6695 End Unit Solid-State Motion Detector Modification Equipment Affected Reason for Modification This Maintenance Notice applies to SBUs US&S has learned that the manufacturer of the equipped with BOTH of the hardware items listed Pressure Transducer implemented a design below, or SBUs receiving either of these items change in 1998 that causes an increase in the...
Page 3 MAINTENANCE NOTICE Installation Procedure Scrape & Cut Scrape Trace Scrape Ground Trace Here Here Plane Here Prior to performing the installation procedure, observe the following: CAUTION contains static sensitive components. Prior to removing the SBU’s Rear Panel, or while working on the internal electronics, always follow...
Page 4 MAINTENANCE NOTICE Technical questions or information regarding the 8. When soldering the diode, ensure that its contents of this Maintenance Notice should be cathode (marked with a white line) is oriented as shown. directed to the R.A.I.L. Team via telephone at 1-800-652-7276 or via Internet e-mail at: 9.