Chamberlain LiftMaster Professional RIFM1LM User Manual

Overview
The Intercom allows multiple simultaneous
conversations, using a 900 Mhz secure digital radio
link. The intercoms form an exclusive network and
respond only to other intercoms in the network.
Carton Inventory
Mounting Frame (2)
Operation & Features
Talk Button: To talk, hold
down the Talk button. All
intercoms in the network that
are on the same channel will
receive the signal. Release the Talk
button when done talking and within 10-15 seconds
press and hold the Talk button of a different intercom
to make a secure channel between the two. Once the
channel is made the other intercoms in the network
cannot hear the conversation.
Volume: Hold down the Talk button and press the
Channel button repeatedly to cycle through the
volume levels.
Battery: When batteries are low intercom will emit
two beeps every ten minutes. Replace with C
batteries (not provided).
NOTE: To prevent damage to the circuit DO NOT use
C size Lithium batteries.
Screw (8)
Fastener (8)
Intercom (2)
Talk Button
Channel Button
Dipswitch Blocks
Channel Selection: Press the Channel button to set
intercom to one of four secure channels or the paging
channel. The default channel for the intercom is the
Paging channel where all four channel lights will flash
in sequence. An intercom on a channel can only hear
an intercom on the same channel or on the Paging
channel.
Command Gate: A gate can be opened with a call
from an intercom. When an intercom has been
activated by another intercom, the talk button can be
pressed to secure a channel to the gate. To allow
access from the gate, press and release the Remote
button to open the gate.
The gate can also be opened without a call from an
intercom. Press and hold the Remote button and an
initial beep will be heard. Continue to hold until a
second beep is heard, then release.
If pressing the Remote button did not open the gate,
a siren noise will be heard. No siren noise indicates a
successful signal transmission.
Switch Settings: Switch #1 and #2 determine which
GCU the intercom will activate. Default Identity is #1
(both Dipswitches DOWN).
SW1: GCU Mode (see chart
below for setting)
SW2: GCU Mode (see chart
below for setting)
SW3: Conference Mode (UP is
Conference Mode, DOWN is
Secure Mode)
SW4: Not used. Leave in default position (DOWN).
Default for all switches is DOWN.
NOTE: The following step applies only if more than
one GCU is being used.
Up to four GCUs can be used. Each GCU will have a
different Identity. Set the Identity of the GCU by
changing the Dipswitches as shown in the chart
below.
GCU Identity
1
2
3
4
Conference Mode: Conference Mode allows multiple
intercoms to participate in a call compared to Secure
Mode in which only two intercoms communicate. To
put intercom in Conference Mode set SW3 to UP
position. Any number of intercoms can be set to
Conference Mode.
1
Model RIFM1LM
Flush Mount Intercom
SW1 SW2
OFF OFF
ON OFF
OFF ON
ON ON
UP
DOWN