User's Manual
Table Of Contents
- 1 INTRODUCTION
- 2 Antenna Requirements
- 3 Installing the Signal Booster
- 4 Battery Charger Description and Installation
- 4.1 Charger Ordering Information
- 4.2 Charger Architecture
- 4.3 Charger Interfaces
- 4.4 Charger Installation Procedure
- 5 Setup and Commissioning
- 6 Administrative Operations
- 7 Monitoring and Troubleshooting
- Appendix A – Booster and Charger Specifications
D-MBR 3707-3708 PS NFPA CLASS B SIGNAL BOOSTER
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage
Date: 6-Set-15
www.cobham.com/wireless
Doc. No. 00060CDUM Rev. 1.0 Page | 21
3.5 Grounding
NOTE: The grounding procedure is identical for both BOOSTER and BATTERY CHARGER.
3.5.1 Grounding Wire Requirements
Requirements for grounding wires
• Protective grounding conductor - should be aluminum with cross-section 10AWG.
• Lug of the protective grounding conductor - should be aluminum
• Washers and screw - should be high Cr stainless steel, or 12% Cr stainless steel, or Cr on, Ni on
steel, tin on steel
3.5.2 Grounding Units
WARNING!! Ground the Signal Booster with the booster’s grounding bolt. Do not use the
grounding bolt to connect external devices.
Connect the grounding wire to the GND lug on each unit as shown below.
Figure 3-13 Booster GND Lug
3.6 Antenna Connections and Guidelines
This section describes the antenna connection requirements, guidelines and procedure. It includes
the following procedures:
• Verifying isolation between Donor and Service antennas
• Verifying link between BTS and donor antenna
• RF cable installation guidelines
• Connecting the antennas
CAUTION!!
• Do not connect the antenna cables to the Signal Booster before verifying the installation
parameters - specifically the isolation between the antennas.
• DO NOT POWER-ON the Signal Booster without either the antennas being connected or the
antenna connections terminated with dummy loads.
GND LUG