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 | 25
3.8 Booster Dry-Contact Alarm Connections
This section describes the dry-contact alarm connections for the
booster
.
The D-MBR and its power source (UPS or Battery Charger), each provide dry-contact alarms towards
the Fire Department Control Box. (In installations with UPS, refer to your UPS manual for instructions
on dry-contact alarm connections to the Fire Department Control box).
Note the following:
• The alarms can be connected any time, before or after the system is powered-on.
• The Charger alarm connections are described in section
4.4.7.
• Optionally, the Battery Charger Fail and AC Input Fail from the UPS or Charger can be connected
to the Booster alarms (requires GUI configuration as well.
Figure 3-16. D-MBR PS NFPA with Charger Architecture
3.8.1 Load Restrictions
3.8.1.1 Alarm Dry Contact Output Restrictions
• Maximum switching voltage: 220 VDC, 125 VAC
• Maximum switching current: 2A
3.8.1.2 External Alarm Input Restrictions
• Maximum repetitive reverse voltage: 28 V
• Impedance load: 470 Ohm
“0” - 0V
“1” - 3.8V - 28V