3722-IG-002 Installation and User Manual
February 6, 2019
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ZigBee Connection
The 3722 EVSE will also communicate to a Gateway or Payment Module using the ZigBee Mesh protocol, allowing wireless
connections. ZigBee networks are secured by 128-bit symmetric encryption keys, so security is assured. A single ZigBee
Payment Module or Gateway can support up to 32 remote EVSEs.
Remote Connection
Remote connections between 3722 EVSEs and a Payment Module can be made, typically using a ZigBee Mesh network. This
allows the EVSEs and Payment Module to be located a greater distance from each other, and also a greater number of EVSEs
to work with a single Payment Module. (See chart below).
EVSE to Payment Module Connection
EVSE to Payment Module Distance
EVSEs per Payment
Module
Serial
Cable length should be no more than 180 feet from
any EVSE to the Payment Module.
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ZigBee Mesh Network
Cable Length
Indoors: 30 – 65 feet (Depending on walls to
penetrate.)
Outdoors: Up to 4800 feet (Line-of-sight,
depending on signal strength and
environmental conditions.)
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NOTE: Administrative data can be transmitted to a remote laptop computer (via the Gateway with a ZigBee Mesh network -
option only) without accessing an external network.
Additional Options
Data Router: The Data Router (Figure 18) in the charger is supplied with a basic ON/OFF keyboard for either free use, or use
in conjunction with an optional Payment or Gateway Module. The charger can also be equipped with a Data
Router with an optional Handbook 44-compliant display module to display Kilowatts (kW) (Figure 18A) used
and the associated cost.
EUMD: The Handbook 44-compliant Data Router displays the data collected by an EUMD Module (End-User
Measurement Device), which is an internal revenue-grade meter that measures power dispersed to the vehicle
during a session with 1% or better accuracy. The EUMD can also be installed and used by itself to send power
measurements back to the host.
Remote Fob: An external module can be purchased that receives RF signals from a remote fob to lower the EVSE J1772
power cable, operating the same as the wall-mounted ON switch.
Power: With the addition of an internal jumper plug, the 3722 can be set up for use with a 20A breaker, reducing
maximum charge current to 16A.
