User's Manual

General Description:
The Model SD4-MC(US) photocell electronic smoke detector with built-
in wireless transmitter is intended for use with the Silent Call® Mini
receiver to form an alerting system. The transmitter will send alarm
condition messages to the system’s receiver.
The SD4-MC(US) wireless transmitter operation is to be used only
with Silent Call® Medallion Series Receivers. The transmitted signal
incorporates a Million Code Address principle that provides each SD4-
MC(US) detector with a unique one in a million address. This helps to
keep any cross talk between like transmitters in a typical single living,
multi-dwelling, or apartment building to a minimum where it is possible
to have adjacent apartments with Medallion Series Receivers.
IMPORTANT: The range and proper operation of any wireless device
will vary depending on its surroundings. It is very important that each
SD4-MC(US) detector is tested with each receiver intended for Alarm.
The Model SD4-MC(US) incorporates a state of the art optical sensing
chamber and an advanced microprocessor. The microprocessor allows
the detector to automatically maintain proper operation at factory cali-
brated detection levels, even when sensitivity is altered due to the pres-
ence of contaminants settling into the unit’s smoke chamber. In order
for this feature to work properly, the chamber must never be opened
while power is applied to the smoke detector.