Thermostat Connector
This connector is used to connect the Thermostat Keypad module to the Control Module. This
is a proprietary interface and can only be used with the specified modules. The Red and
White terminals supply power (3.3 VDC), the Green and Yellow terminals utilize a proprietary
communications protocol.
CAUTION: Do not connect the thermostat connector to the furnace/AC. This will
damage the control module.
Furnace/AC Connector
This connector is wired to your furnace and/or air conditioner, and provides the control signals
to your equipment. If your furnace/AC provides the “C” or “X” wire (see Install Step 1D), this
connector also provides power for the thermostat. Refer to the Thermostat Connections
section of this manual for detail of terminal usage.
LAN Port
The LAN port is a standard Ethernet interface (IEEE 802.3 compatible with 10/100/1000
Base-T networks). This port operates at 10 Mbps (10Base-T). There are 2 LED activity
indicators built into the the connector. The green LED will be illuminated whenever there is a
physical link to your network (plugged in). The amber LED is illuminated when there is activity
on the port.
Power Supply
The power supply connector is used to power the BAYweb Thermostat if your furnace/AC
does not provide the common power wire (“C” or “X” terminal). See installation Step 1D.
Ideally the power supply should be plugged into the same circuit that powers the furnace/AC.
Status Indicators
Indicator Description
Heat Indicates when the thermostat is signaling the furnace to produce heat
Fan Indicates when the thermostat is signaling the furnace or air conditioner to
manually turn on the fan
Cool Indicates when the thermostat is signaling the air conditioner to cool
Power Indicates that there is power supplied to the control module from the line cord
Wireless Illuminates for 2 seconds whenever an X10 wireless signal is received for any
configured occupancy or alert sensor
Thermostat Indicates that the control module is successfully communicating with the
Thermostat Keypad module
Uplink Indicates that the control module is online with the BAYweb portal
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