User's Manual

Table Of Contents

Part # 430-4G-050-00-004

Install Hardware

After all devices are configured and connected to the RS-485 network, the baud rate can be

increased to the highest supported rate (some experimentation might be required).

4.7 SINGLE-DOOR CONTROLLER INSTALLATION

The 4G Lite devices incorporate an internal relay that enables them to operate a

deadbolt/door strike directly.

WARNING

The internal relay is limited to a maximum current of 1A. If the

deadbolt/ doorstrike to be controlled draws more than 1A, damage to

the device may occur. If the deadbolt/door strike load exceeds 1A,

an external relay must be used, as described below. Do not use the

same power supply to power a 4G V-Series device and a door

strike.

Assuming the current drawn by the deadbolt/door strike is less than 1A, the connections

between 4G Lite device, deadbolt/door strike, and power supply for the deadbolt/door strike

should be made. Note that a snubber diode (1N4007 or equivalent) must be connected

across the deadbolt/door strike to protect the DC power supply from inductive kickback.

CAUTION

The snubber diode and DC power supply for the deadbolt/door strike

are not supplied with the 4G Lite device. The power supply should

be specified in accordance with the voltage and current

requirements of the deadbolt/door strike, but it must be ensured that

the current to operate the dead bolt/door strike does not exceed 1A.

If the current required to operate the deadbolt/door strike exceeds 1A, an external relay must

be used in conjunction with the 4G V-Series device. The external relay must be specified so

that its contacts are rated to carry the current required by the deadbolt/door strike, and that

the current required to operate its energizing coil is within the 1A capacity of the 4G V-Series

device's internal relay.