Molex® connector types and keying
The types of connectors used and their keying is shown below
ConnectionsMolexMolexConnector types

Master module 16-pin connector (Molex® part number: 334721601)
Remote module 20-pin connector (Molex® part number: 334722001)
Signal module 4-pin connector (Molex® part number: 334724002)
Output module 4-pin connector (Molex® part number: 334724001)
Note
The connectors used for the Signal module and Output modules are keyed differently.