ControlByWeb XW110 User Manual page 6

Installation and Setup
2.1.2 XW-111 Switch Closure Connections
The XW-111 can sense the state of up to two switch closure sensors. Sensors with switch closure
outputs include push buttons, magnetic door alarm switches, micro-switches, or any device which has a
relay or switch closure output. Both sensor inputs share the same GND connection. The XW-111 can be
configured for the alarm to be active when the switch is either open or closed. If possible, use switches
which are normally open (NO). When the switch contact is open no current flows thru the switch and the
longest battery life is achieved. When the switch is closed 17uA flows thru the switch.
The inputs use 3.3Volt logic and work with simple switches and relays. Do not connect the digital inputs
to a power source. The inputs will work with cable lengths up to 50-feet and should not be routed near
motors or AC wiring. The connections for two switches are shown:
2.1.3 Power
The XW-110 and XW-111 are powered from either a 5-volt DC wall adapter or two internal 1.5V "AA"
batteries. If the wall adapter is connected, no power is drawn from the batteries. If the external power
fails the module automatically switches to the internal batteries. No jumpers or switches are needed.
The wall adapter should be used for certain modes with high current demands such as: "Stand-Alone
mode" with HTTP server enabled, "Slave mode" with high reporting rates, or when "access point" is
active.
Page 6
XW110/XW111 WiFi™ Users Manual
Xytronix Research & Design, Inc.