AVC2.r Module

This version (AVC2.r) is only for inlets with no built-in proximity resistor to ground. The AVC2 module improves on J1772 pilot communications and power control. It improves safety and compatibility with public J1772 charging stations on converted vehicles. The adaptor takes advantage of the differing pin lengths to insure ground mates first and breaks last. Pin lengths also insure power pins are mated before the pilot and the pilot ends before the power pins separate.

J1772 plugs were not designed to ever mate or separate with power on. The module monitors the latch switch in the J1772 system. It removes the pilot signal when your thumb is on the connector latch, further insuring power is off long before the connector separates.

The AVC2 module is powered by the vehicle's 12 Volt system, current draw is always under 20ma. There are 8 connections:

Relay NO - Normally Open
Relay C - Common
Relay NC - Normally Closed
+12 V power from the vehicle
CH chassis ground (and AC power ground)
GND green wire from J1772 Inlet Connector
PROX prox wire from J1772 Inlet Connector
PILOT pilot wire from J1772 Inlet Connector

The embedded SPDT relay has a set of contacts for your use. Soft start or stop of charging or inhibiting motion would be typical uses. An LED shows when the circuit is latched.

There are 2 types of AVC2 modules: AVC2 is for vehicle inlets that have a 2.74 kW resistor between ground and the PROX pin, like the ITT units AVC2.r is for vehicle inlets that do not have a 2.74 kW resistor between ground and the PROX pin