Installation and Connections
XW-210 WiFi™ Users Manual
2.2 Making Connections
CAUTION: Make sure the power is shut off before making connections
CAUTION: This unit should be installed by a qualified technician.
CAUTION: Miswiring or misconfiguration could cause permanent damage to the XW-210, the
equipment to which it is connected, or both.
A removable terminal connector is provided for making the power connections. To help protect the XW-
210 from mechanical stress remove the terminal connector before making the connections.
1.
Make sure power is turned off.
2.
Remove the terminal connector from the XW-210 and make wiring connections to the terminals.
This technique avoids stressing the internal components while torquing the screws.
3.
Reconnect the terminal connector.
4.
Apply power.
It is recommended that any load (device to be controlled) not be connected until after the XW-210 has
been configured and tested. By doing this, wiring and configuration mistakes will not cause the load to
turn on unexpectedly. Make certain the wires are properly inserted into to the terminals and that the
screws are tight.
Relay Connector Specifications:
Type:
3-position, removable, 7.62 mm (.30”) pitch
Connection wire:
Use wire rated for 75ºC (min) for connections to the relay terminal block
Stripping Length:
7mm
Connection capacity:
2.5mm
2
stranded, 2.5mm
2
solid
Conductor minimum:
30AWG (UL/CUL)
Conductor maximum:
12 AWG (UL/CUL)
Conductor Type:
Copper
Tightening torque:
0.5 Nm (min), 0.6 Nm (max)
2.2.1 Power Supply Connections
The XW-210 requires power for its internal logic circuits. Connect a 9-28 VDC power supply to the +Vin
and GND terminals. A regulated power supply is recommended, such as a wall-mount AC-DC adapter.
Verify that the adapter is rated for the operating current of the XW-210 (See
Appendix A: Specifications
for the current requirements.) Multiple XW-210 units may be connected to a single power supply by
connecting the power supply input terminals in parallel. The power supply must have a high enough
current rating to power all units connected. If the XW-210 is powered with a solar panel, the system must
include a solar charge controller and a battery.
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Xytronix Research & Design, Inc.
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