comotive magnetics and pneumatic systems in re- sponse to decoded control commands. The configura- tion of the manual control switches is duplicated and wired to industrially rated terminals for interconnec- tion to the locomotive con- trols. A
The receiver antenna is normally mounted on the locomotive cab, and suffi- cient
Pneumatic Cabinet
The pneumatics enclosure is of NEMA 12 construc- tion and houses the pneu- matic controls for the re- mote operation of the lo- comotive. The locomotive throttle, independent brakes, and the train line brakes are normally oper- ated via binary pneumatic valves for control of the air pressure. Other functions and the horn are con- trolled by solenoid valves. This cabinet also contains the pressure switches for main air, independent brakes air, train line brakes air, and throttle air.
Specifications
Supply Voltage | 12VDC, 24VDC, 36VDC or 72VDC |
Internal Power Requirements | |
Operating Temperature |
Radio Receiver
Frequency Range | |
Channel Availability | as required by user |
Frequency Stability | ±5 ppm |
Sensitivity | 1 µv @ 20 dB quieting |
Data Reception | compatible with existing transmitters |
Modulation | biphase |
Baud Rate | 4800 bps |
Message Format | preamble, sync pattern, start flag, address, control, CRC |
| check code |
Control Section
Single board computer consisting of 80C31BH controller, 64k EPROM, EPLD containing cir- cuits for message synchronizing, and processor watchdog
Hubbell Offers
•Factory Assembled — the transmitter, receiver, and pneumatics cabinets are completely as- sembled and wired at the Hubbell factory.
•System Test — the entire system is tested for a minimum of 48 hours prior to shipment.
•Installation and Commissioning — Installation is accomplished quickly. Transfer switch is
•Customer Support — Hubbell provides a complete documentation package including drawings, operating manuals, service manu- als, spare parts, training and experienced field service engineers.
Switches | 8 position address dip, 4 position message timer dip |
Indicators | 2 digit display (7 segment LED) for self diagnostics & error |
| conditions |
Firmware | written in 8031 assembly language structured for ease of |
| customization of output control |
Functions | message input address decoding, error checking, control |
| bit decoding, output control self diagnosis |
Paralleled I/O | basic system uses single board, up to three additional |
| boards may be added |
Output per board | 48 software programmable for input or output with |
| readback on all outputs |
Driver per output | TTL compatible for up to 25mA sink |
DC Output Section
Solid state relay PC boards in card cage.
Type | Opto Isolated |
Indicators | Red: output activated |
Output Voltage | 24VDC |
Input Voltage | |
Load | 0.5A, 24VDC, inductive |
Isolation | 1500V |
Input Board
Input 24 VDC sensing PC board in card cage.
Indicator | Red: input activated |
Input | 24VDC nominal |
Isolation | 1500V input to output & between circuits |
Output |