RHBDA CONNECTIONS
The RHBDA Remote AC power is accepted through a standard 3-wire male plug
(IEC-320) with phase, neutral and ground leads (See Figure 3). The AC power is
wired to a high efficiency DC switching power supply which is CE and UL approved.
The Remote power supply runs the amplifiers, the Power ON lamp, and Fiber Optic
Transceiver. The metal enclosure of the RHBDA is connected to ground.
An optional 9-pin D-Sub connector provides failure alarm output contacts (see
diagram next page) as well as an optional 12 VDC (250mA) auxiliary output.
The RF connections are made via one type “N” female connector on the back panel
(See Figure 3). The RF connection on the Remote Unit labeled “MOBILE” must be
connected to the antenna facing the area to be covered by the RHBDA. The Fiber
Optic connections are made via SC/APC female connectors. The Fiber Optic
connector’s on each Remote Unit labeled “Fiber-In” and “Fiber-Out” are the fiber
connections going to and from a Fiber Optic Head-end Unit.
The RF connections must be made through cables with characteristic impedance of
50 ohms. The Fiber Optic connections must be made through Singlemode cables
with SC/APC connectors.
The OPTIONAL 9-pin D-Sub connector provides failure alarm output contacts (see
diagram next page) as well as an optional 12 VDC (250mA) auxiliary output.
For S1 Option: The RHBDA is equipped with both AC and DC voltage inputs for
power operation. This gives the flexibility of powering the RHBDA with either an AC
or DC source. If both sources are connected, the RHBDA will automatically select the
stronger source for power. NOTE: (To insure that the AC source will be selected
when both sources are connected, DC input voltage must be
≤
27 VDC.)
*Note: We do not guarantee specifications below 26.5 VDC.
The isolation between the base station antenna and the mobile antenna should
be at least 12 dB higher than the RHBDA gain. Isolation less than this value can
cause gain ripple across the band. Isolation equal to or less than the RHBDA
gain will give rise to oscillations which will saturate the amplifiers and possibly
cause damage to the RHBDA.
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