MBF-40 SMR700/SMR800 PS REPEATER
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage Date: 28-Jan-16 www.cobham.com/wireless
Doc. No. 00046UM Rev. 2.1
Page | 13
The primary protective device is part of the site installation and is not supplied by Cobham Wireless.
Coaxial lightning protection is normally one of these three types: Gas capsule, High-pass and
Bandpass.
There also need to be a protective device installed on the power supply cord.
Figure 2-2: Protective device installed in connection with the power supply
2.2.6 External Alarm and Relay Considerations
For installations that include connections of external alarms and relays
• The connector plinth for the external alarms is located inside the repeater.
• The strain relief fitting in is a Pg 13.5 suitable for a 6-12 mm cable diameter.
• Four external alarm sources can be connected to the repeater.
• Alarm operating voltage: between 12 and 24VDC.
• The relay supplies 100mA maximum current
2.2.7 Location Criteria
Location criteria
• For wall mount installations:
• Wall compatibility - check the suitability of the wall on which the unit is to be to be fitted.
• 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 Optical, RF and power 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 Optical and 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.
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