Magellan Wireless Expansion Module
3
and heater ducts since they may cause interference and reduce the module’s
sensitivity
• Select a site that is not susceptible to drastic temperature changes
• Mount the MG-RCV3 as high as possible
• Avoid mounting the MG-RCV3 in the basement as the range of the module is
reduced when mounted below ground level. However, if it is absolutely
necessary to mount the module in the basement, mount the module as high
and as close to the underside of the first floor as possible
• Mount the MG-RCV3 on a wall allowing at least 5cm (2in) around the module
to permit adequate ventilation and heat dissipation
For the maximum allowable distance between the control panel and
the MG-RCV3, refer to Figure 2.2 on page 6.
2.2 Noise Level Test
The MG-RCV3 performs a test on power-up that verifies the noise level in the
surrounding environment. If the environment is too noisy, the module’s RX LED
will illuminate (refer to Figure 2.2 on page 6) and will remain illuminated until
the module is powered up again. In such cases, power down the MG-RCV3,
change its location, and then power up. Repeat this procedure until the
module’s RX LED no longer illuminates. If all possible mounting locations have
been tested and the environment is still too noisy, be aware that the wireless
system may not function properly.
2.3 Connections and Mounting
1. Using a screwdriver, remove the screw on the MG-RCV3’s front cover and
then remove the front cover.
2. Firmly screw the antenna into the connector marked ANT on the MG-RCV3
(refer to Figure 2.1 on page 5).
3. Remove the printed circuit board (PCB) by applying outward pressure to
the mounting clips (refer to Figure 2.1 on page 5) and then lifting the PCB.
4. Using a drill or screwdriver, punch out the four mounting holes on the back
cover (refer to Figure 2.1 on page 5).
5. Align the six orientation holes (refer to Figure 2.1 on page 5) of the PCB
MGRCV3ES_EI01.fm Page 3 Wednesday, May 4, 2005 3:27 PM
