D-MBR 3707-3708 PS NFPA CLASS A SIGNAL BOOSTER
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage
Date: 17-Jan-16
www.cobham.com/wireless
Doc. No.00060CDUM Rev. 1.1 Page | 15
3.3 Mounting the System
Note the following:
• The mounting procedure is identical for both
Booster
and
Battery Charger
(where relevant)
installations.
• The mounting procedure is identical for both indoor and outdoor installations.
• The weight of the
Booster
requires that
two people
mount the unit on the wall.
• Washers are
not
supplied with the unit to be mounted.
• In addition to the bracket assembly, it is recommended to use
additional fixings
– an example is
given in section
3.3.3.4.
3.3.1 Location Criteria
Location criteria
• Plan mount - check the actual fixing centers (see below) and overall dimensions of the unit
enclosure. The unit is supplied with two wall mounting brackets; when the unit is mounted on
these brackets adequate ventilation is provided between the unit and the wall to which it is fixed.
• Plan connection cable clearances - the connections located on the underside of the unit will
need at least 300mm vertical clearance below the unit to enable the connections to be made.
The minimum bend radius for RF cables must not be less than the recommendations made by
the cable manufacturer. Plan the cable runs and ensure adequate space is available.
• Allow for door opening - ensure that there is sufficient space at the front of the unit to allow
the door to be fully opened and for maintenance engineers to get access to the unit with test
equipment such as a spectrum analyzer. Allow an additional 500mm of space in front of the unit
when the door is fully open.
• Allow for heat dispersion - Mount the repeater so that heat can be dispersed from it.
The repeater wall mounting kit ensures an optimum airflow between the wall and the repeater.)
Do not block this air channel as it will cause the MTBF of the repeater to drop dramatically, or
even in the worst case cause the repeater to fail completely.
If possible, use a wall in the shade to minimize the overall sun loading. If sufficient shielding
cannot be obtained, an additional sun shield should be mounted.
Figure 3-2: Example of a sun shield
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