Installation Guide

AirHarmony-4200 DC (Internal Filters) Installation Guide
UGD-D01196 Airspan Commercial and Internal Use 36
5 AirHarmony-4200 DC Connections
This section describes grounding procedure, cable preparation and connections and external
antenna assembly.
5.1 Grounding
The AirHarmony-4200 DC requires a secure ground connection. The ground cable should be
connected with the grounding screw fitted with a flat washer and lock washer to the bottom of the
chassis clearly marked with the universal ground symbol as shown below. The grounding screw (M6
x 16) is pre-installed during assembly.
Figure 18: Grounding
The cable should be grounded and bonded according to international or local standards.
5.2 Remote Antenna Assembly
The AirHarmony-4200 DC unit is be used with a remotely attached antenna.
For installation of a remotely mounted antenna follow the antenna manufacturer’s instructions and
connect the antenna to the AirHarmony-4200 DC External Duplexers’ RF connectors (female DIN
4.1/9.5 connector) using the appropriate cables with a male DIN 4.1/9.5 connector.
Caution: Take care not over tighten the RF connector. The connector nut should be
tightened to a nominal torque of no more than 10.0 Nm (1.47 lb-ft). RF failures can
result when the RF connector is over-tightened.
Connecting RF Jumper Cables to External Antenna
The following describes how to connect the antenna cables to the External Duplexers.