User Manual

TRAIN CHIEF® II LRCS W/ Lightweight OCU-BT – OPERATORS MANUAL
95-00-0-062, Rev 08 3-14 Control Chief Corporation
3.6 Locomotive Interface
Introduction
The connection of the RCU to the locomotive is achieved through both electrical and
pneumatic (air) interfaces. All locomotive interface connections are located on the bottom of
the RCU. The RCU manages all necessary conversions for the specific locomotive functions.
Once interfaced, the RCU becomes an integral part of the locomotive system and utilizes the
locomotive DC power and main air reservoir supply. This enables the Train Chief® II system
to support the full functionality of the locomotive without any non-typical system
configurations. Below is discussion on some of the key elements of the locomotive interface.
Refer to the system prints for the detailed interfacing requirements for your specific
locomotive.
3.6.1 Main Air Supply Shut-Off Valve and Filter Assembly
Located on the bottom of the RCU unit is the main air supply input for all pneumatic
functions controlled by the system. Ahead of the main air supply inlet (installed separately
in the locomotive cab) there must be a pneumatic shut-off valve and filter assembly
(supplied in the installation kit). The shut-off valve must be in the closed position (handle is
at a right-angle to the air-line) for manual and in the open position (handle in-line) for
remote. The assembly also includes two (2) filter housings: one is a particulate filter and
the second is a coalescing unit. These filters protect the pneumatic components in the
system. These filters must be part of your scheduled maintenance for the locomotive to
insure optimum performance and maintain warranty requirements.
3.6.2 Manual/Remote Transfer Switch
The manual/remote transfer switch is located on the right-hand side of the RCU. The
function of the switch is to transfer out critical manual (cab) locomotive functions when
switching from manual to remote, and to transfer out critical remote functions when
switching from remote to manual.
Manual/Remote Transfer Switch Selections and Functions
Function
Manual
(CAB)
Remote Comments
Strobe
OUT IN Strobe active ONLY in remote mode
Ignition Wire IN OUT Disables engine start when in remote
mode.
Throttle Switch IN OUT Disables manual throttle lever in remote
mode.
Head Light IN OUT Disables manual headlight switch in
remote mode.
Reverser IN OUT Disables reverser lever in manual mode.
Table 3.6.2