User's Manual

MECHANICAL SPECIFICATIONS:
Size : 16.0 x 12.0 x 8.75 inch
(406 x 305 x 222 mm)
Weight : 35 Lbs. (16.0kg.) approx.
ENVIRONMENTAL CONDITIONS:
The unit is designed for indoor applications:
Operating temperature: -30°C to + 65°C
Storage temperature: - 50°C to + 90°C
BDA CONNECTIONS
The BDA AC power is accepted through a 3-wire male plug with phase, neutral and ground
leads. The AC power is wired to a high efficiency DC switching power supply which is CE
and UL approved. The power supply runs the amplifiers and the Power On lamp. The metal
enclosure of the BDA is connected to ground.
A 7-pin circular connector provides failure alarm output contacts (see diagrams on page 9) as
well as a 12 VDC (250mA) auxiliary output.
For S1 Option: The BDA is equipped with both AC and DC voltage inputs for power
operation. This gives the flexibility of powering the BDA with either an AC or DC source. If
both sources are connected, the BDA will automatically select the stronger source for power.
NOTE: (To insure that the DC source will be selected when both sources are connected, DC
input voltage must be at least 27 VDC.)
The RF connections are made via two type “N” female connectors. The RF connector labeled
“BASE” must be connected to the antenna pointing towards the base station. The RF
connection labeled “MOBILE” must be connected to the antenna facing the area to be
covered by the BDA.
The RF connections must be made through cables with characteristic impedance of 50 ohms.
The isolation between the base station antenna and the mobile antenna should be at
least 12 dB higher than the BDA gain. Isolation less than this value can cause gain
ripple across the band. Isolation equal to or less than the BDA gain will give rise to
oscillations which will saturate the amplifiers and possibly cause damage to the BDA.
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