User's Manual

SECTION II INSTALLATION
SM 7063 07/97 2-2
2.2.2 AAR Clean Cab Enclosure
Installation of an industry standard AAR Clean Cab Enclosure in the locomotive is the responsibility of the
Railway.
2.3 Installing the CDU Cables
This section details the installation of the Power and Odometer cables required to connect the CDU to the
locomotive. The cables and their respective part numbers are listed in Table 1-1 in the previous section.
2.3.1 Power Cable Installation
For most installations, one of two types of power cable assemblies are used to connect the CDU to the
locomotive DC power system. One is a 5-pin Bayonet Twist Lock type (CA) connector and the other is a 4-
pin MS Threaded type connector. In both cases, the cable assemblies are supplied with the connector
pre-mounted on one end of the cable, with the other end left unterminated.
CAUTION
Non-standard cables, or those supplied by the Railroad, may employ different
color codes than those used by US&S. Refer to the connector pin assignments
in this manual or consult US&S Customer Service at 1-800-652-7276 for further
technical assistance, if required.
Cut the cable to the desired length. Strip and install whatever spade lug, tab, or other contact is required for
the locomotive. The three conductor cable should be wired per the table below:
Pin Conductor Bayonet (CA) Type Connector MS Threaded Type Connector
A Black + 72 VDC Locomotive Power + 72 VDC Locomotive Power
B N.C. + 13.6 VDC Mobile Power 13.6 VDC Mobile Power Ground
C White 72 VDC Locomotive Power Return 72 VDC Locomotive Power Return
D N.C. 13.6 VDC Mobile Power Ground + 13.6 VDC Mobile Power
E Green Chassis Not Used
Note: N.C. = Not Connected
Table 2-1. CDU Power Connections
2.3.2 Odometer (Axle Alternator) Cable Installation
Two standard Odometer Cables are available. Each consists of a dual twisted pair, individually shielded
cable with either a 6-pin Bayonet Twist Lock type (CA) connector or 6-pin MS Threaded type connector on
one end. The other end is unterminated.
CAUTION
Non-standard cables, or those supplied by the Railroad, may employ different
color codes than those used by US&S. Refer to the connector pin assignments
in this manual or consult US&S Customer Service at 1-800-652-7276 for further
technical assistance, if required.