User Manual

INSTALLATION GUIDE
Proprietary Information
Title: BEAMER Array System-
Assembly and Operation Manual
Doc. No.: 913000100 Rev.: 00
Page: 25 of 92
2.3.2. System Measurement and Testing Conditions
Live +24VDC with high current capability exists on the Tx ABT output and the Rx ABT input (all the
N-type connectors at the ICU external RF interface). Use extreme care when handling these ports. It is
strongly recommended to disconnect the DC power to the ICU, whenever possible, before each and
every cable connection to the Tx ABT outputs or the Rx ABT inputs.
Always use a DC block device connected to the measuring equipment input or output ports (spectrum
analyzer, power meter, or RF signal source), when measuring ICU of BEAMER array performance.
Before applying RF power to any port of the system (either ICU or BEAMER array) always turn the
DC power ON. Never apply any RF input power with the unit's DC power OFF.
Do not apply more than +20dBm of RF input power to any RF port of the
BEAMER system, or irreversible damage may occur.
When measuring high power outputs, always verify that the equipment probe is capable for handling
the expected output power.
With DC power ON and the nominal RF input applied, BEAMER -Tx radiators produce 2Watts of RF
power per module, 8 Watts per array, and approximately 150Watts EIRP.
When testing the units in lab or during field installation, always practice RF
radiation safety rules.
During lab tests, with DC voltage applied to the array, do not use any PCS mobile transmitter in a
range of less than 10 meters from the BEAMER array. An unexpectedly high RF power might appear
at the Rx output, which might in turn damage the measuring devices connected to that port.
2.4. ICU Operation Instructions
2.4.1. DC Connections and Fuse Replacement
2.4.1.1. DC Wiring
The ICU should be connected to 24±4 VDC power supply. A minimum of 14AWG wires should be
used, for minimal DC voltage drop. The following diagram shows the DC connection to the MOLEX
DC connector. The three wires connected to each pin at the connector should be tied together as close
as possible to the DC voltage source.