RLX8: Connecting to OEM32/36

The OEM32/36 has one 10-pin plugs that has 8 outputs on it, and two 10-pin plugs that each has 8 bidirectional I/O pins. The bidirectional pins can each be programmed as an input or as an output, so each one is capable of driving an RLX8 relay.

Each of the 10-pin connectors also has a positive supply pin and a 0V (labeled GND) pin. Take a few moments to locate the connectors and power pins.

The basic principles in connecting an RLX8 to an OEM32/36, using the UBCC1030 cable, are:

  1. The RLX8 board is to get its required power from the + supply voltage pin on one of the OEM32/36 output or I/O connectors. That means at least one of the 5-way female connectors must be located at the "+" end of a 10-pin connector, with the wire connected to the "+" pin.
  2. The second 5-way female connector does not have to be on the same OEM32/36 connector as the one with the white "+" wire.
  3. The relay drive pins on the RLX8 board are to be connected to the appropriate OEM32/36 output pins (or I/O pins used as outputs). When the OEM32/36 output turns on, it connects the RLX8 relay pin to 0V and completes the power circuit around the relay coil.
  4. There is no need for a ground (0V, GND) connection between the OEM32/36 and the RLX8.

Before you start inserting pins into housings, it's a good idea to have a plan for allocating RLX8 relays to OEM32/36 pins.

Do not use this document with RLX8 boards date coded earlier than YM002. See Introduction