OpenCoral OCnet

OCnet is a standards-based, easy to implement digital communications channel between various pieces of aquarium control equipment.

OCnet is based upon ModBus/RTU over 2-wire RS-485. The connector which is commonly used is the 6P6C (6 position 6 contact) RJ12, with 26 AWG wire in a “reversed” (1 to 6, 6 to 1) configuration between all points. This cable is very inexpensive and very easy to customize to any length required.

The bus configuration shall be multi-drop capable, allowing you to daisy chain numerous devices.

The pin-out of the cable is as follows:

• PIN1: +5VDC logic supply (from master only)
• PIN2: GND
• PIN3: Data - (B)
• PIN4: Data + (A)
• PIN5: GND
• PIN6: +5VDC logic supply (from master only)

• 38,400 baud
• 8 bits data
• 1 stop bit
• 1 start bit
• No parity