User's Manual

SECTION I INTRODUCTION
SM 7063 07/97 1-4
1.5.2 Parts Used for Installation
Table 1-1 below lists parts used for installation which may be ordered separately from the CDU.
Description Part Number
Installation Kit Complete, Mounting Tray Style X451646-9801
Installation Kit Complete, AAR Clean Cab Style 116-5016-00
CDU Mounting Tray 150-0128-00
CDU Odometer Cable N451805-1201
CDU Power Cable, Bayonet Connector, 72 VDC N451883-0401
CDU Power Cable, Bayonet Connector, 12 VDC N451883-1401
CDU Antenna 472-0017-00
CDU Antenna Cable Kit 170-0842-00
Table 1-1. Installation Parts
1.5.3 Diagnostic Software Disk
The CDU does not rely on a dedicated external device for system diagnostics. All of the unit diagnostic
tests and configuration functions are included on a Diagnostics Software Disk that runs on a standard
DOS-compatible personal computer (PC) which plugs into the CDU’s rear mounted Diagnostic Port.
The Diagnostic Software has been designed to permit easy customization of the operation of the CDU.
Most of the variable default values and functions are user selectable, set by the factory at purchase
time, or by railway technicians via a PC computer after purchase. The Diagnostic Software program on
the disk is named
“diagunit.exe”
and its use is described in Sections IV.
The Diagnostic Software Disk can be ordered under the following part numbers:
Description Part Number
3.5” Diskette N451232-1264
5.25” Diskette N451232-1265
Table 1-2. Diagnostic Software Diskette
1.5.4 CDU Executable Software Disk
The CDU uses a FLASH type programmable non-volatile memory chip to store its application software
as opposed to a standard EPROM. This eliminates the need to disassemble the unit and physically
replace the EPROM in the event that software upgrades are issued.
The CDU Executable Software disk allows the user to download CDU software upgrades into the
CDU’s internal FLASH memory. This disk contains two files; (1) the latest upgrade version of the CDU
executable software named
“cdu.hex”
, and (2) the Cab Unit Flash Loader program named
“load.exe”
. The use of this disk is described in Appendix A.
The CDU Executable Software disk is available on a 3.5” diskette under US&S part number N451232-
0821.