Power / Communications Module

The Power Module receives power from the topside and converts it to power levels required by the various modules, sensors and accessories.

8 Pin Male Tether Connector

Pin	Function
1	Interlock (GND)
2	Interlock (Sense)
3	Tether V+
4	M100 EOP+
5	Tether V-
6	M100 EOP-
7	RS-485 A
8	RS 485 B

5 Pin Female High Power (Thruster, Lights) Connector (2)

Pin	Function	Wire AWG	Color
1	48 V DC +	20	Red
2	GND	22	Green
3	48 V DC –	20	Black
4	RS-485 A	24	Gray
5	RS-485 B	24	White

Power is rated at 750 Watts per port for 1,500 Watts total.

Power Module Arrangement

The communications module is the “brains” of the vehicle and coordinates vehicle control systems and provides data paths for sensors and accessories.

9 Pin Female Interface Connectors

 The ports are not numbered in sequence.

Pin	Function
1	ETH_RXP +
2	ETH_RXP –
3	24 V DC +
4	ETH_TXP +
5	GND
6	ETH_TXP –
7	RS-485 A
8	RS-485 B
9	12 V DC +

Power is rated at 300 Watts for the 24 Volt circuit and 120 Watts for the 12 Volt circuit. This is the total output of the internal DC/DC converters and is divided across all connections as demanded by each externally connected device. Each connector pin is rated to 5 Amps, which should not be exceeded. For any one connector, the maximum Watts should not exceed 120 Watts for the 24 Volt circuit and 60 Watts for the 12 Volt circuit.

Communications Module Arrangement 

Port Number	Module/Device Assignment	TCP Port	Baud Rate	Notes
1	Power	7444 (vrport1)	115200
N/A	Communications Module	7444 (vrport1)	115200
2	N/A	N/A
3	High Definition Camera	7446
4	N/A	N/A
5	AHRSD	7448
6	Rotating Manipulator	7449	115200 (Reach Alpha Manipulator Only)

Defaults: Group ID – 193; Node ID – 2; IP address – 192.168.1.64; RS-485 accessible