User's Manual
Table Of Contents
- Installation and Operation Manual Draft in Progress
- Contents
- Preface
- 1 Description
- 2 General Safety and Regulatory Information
- 3 Operation
- 4 Working with Base Stations from Your PC
- 4.1 PC Recommendations
- 4.2 Connecting Your PC to the Base Station
- 4.3 Working with the Web Interface
- 4.4 Basic Tasks
- 4.4.1 User Settings
- 4.4.2 Taking the Base Station Offline
- 4.4.3 Troubleshooting Alarms
- 4.4.4 Working with Configuration Files
- 4.4.5 Configuring Single Base Stations
- 4.4.6 Configuring Base Stations in a Channel Group
- 4.4.7 Setting Up Custom Alarms
- 4.4.8 Disabling the Front Panel Keypad
- 4.4.9 Preparing to Download Firmware
- 5 Installation
- 6 Maintenance
- 7 Troubleshooting
- 8 Replacing Modules
- Appendix A – Interface Pin Allocations
- Appendix B – Inter-Module Connections
- TaitNet P25 Glossary
- Tait Software License Agreement
DRAFT 4
22 Description TB9400 Installation and Operation Manual
© Tait Electronics Limited September 2011
1.7.3 Intermodule Communications
A system control bus and a subrack interconnect board link the modules in
the subrack and carry alarm and control signaling between the reciter and
the other modules, as shown in Figure 1.7.
Figure 1.7 Intermodule communication paths
FanFan
Fan
I C
2
RS-485RS-485
RS-485
RS-485I C
2
Fan
PA Fan
PMU Fan
Fan
PA 1
μP
Subrack Interconnect Board
PA 2
μP
Reciter 1
μP
Front Panel
PMU
Fan
Reciter 1/
PA 1 Fan
Reciter 2/
PA 2 Fan
Reciter 2
μP
User
Controls
PMU
μP
I C Current
Source
2