User's Manual

Advanced RF Technologies, Inc.
12
2. CABLE CONNECTION
2.1 AC Power
Figure 2-1 AC Power port
AC power is accepted through a standard 3-wire male plug (MS3106A-22-2S) with phase, neutral and ground leads.
The AC power is wired to a high efficiency DC switching power supply which is UL approved. The power supply runs
the amplifiers and device including RF Module, controller, LED, etc.
The metal enclosure of the BDA is connected to ground.
2.2 External Alarm
Figure 2-2 External Alarm port
This port should be connected only to ADRF External Alarm Box.
2.3 RF
The RF connections are made via two type “4.3-10” female connectors. The RF connector labeled “DONOR” must be
connected to the antenna pointing towards the base station. The RF connection labeled “SERVER” 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.
Separation between the antennas is necessary to prevent oscillation. Oscillation occurs when the signal entering the
system continually reenters, due to the lack of separation between the donor and server antennas. In other words,