Chapter 1 – Installation
Page 14 of 30 9450 Duolink Exit Alarm Receiver Hardware Installation Guide
0510-1103-G
The DuoLink can be mounted in both a single or double door
configuration. This section provides detailed instructions about how to
mount the DuoLink in both configurations.
Mounting information to keep in mind:
All receivers must be screwed to the wall using the metal
mounting brackets provided on the back of the receiver. Double-
sided tape is not appropriate for this task.
Do not mount the DuoLink on a steel door frame, unless the
optional isolator is used (0120-0062K). If the door frame is
aluminum, the optional isolator can be avoided.
Antenna should be positioned as close as possible to the door
(without mounting on a metal door frame or directly to the door)
to minimize the effect of RF noise and to improve the coverage
It is not recommended to mount the DuoLink directly to the door.
Doing so will reduce its service life.
Observe DuoLink direction (as illustrated)
Never run wires along the length or inside of the DuoLink
Dimensions as shown are critical for best performance. If EXACT
dimensions cannot be obtained due to architecturally or noise
source constraints, at a minimum, the ferrite coils in the DuoLinks
must be greater than 1 inch apart and must be perpendicular to
each other.
Do NOT install the DuoLink closer than 2 feet in any direction
(including on the other side of a wall) to a 3rd party or RFT card
reader or access control. Doing so may cause the system to not
function properly. To test:
o Hold the DuoLink in the proposed location and
bring a card to the reader to observe the LED
signal on the DuoLink.
o With no transmitters present, the signal LED on the
DuoLink should remain off. Excessive blinking
indicates that the card reader is impacting the
DuoLink’s ability to receive transmitter signals.
o A handheld DuoLink receiver already tuned at the
door can be used to survey any interference if the
2 foot spacing cannot be met.
For wander management systems with residents wearing
transmitters on their ankle, the antennas can be mounted at 36”.
If there will be a mix of wrist and ankle worn transmitters, the top
of the antennas can be mounted at 42”.
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