User's Manual
Table Of Contents
- Installation and Operation Manual
- Contents
- Preface
- 1 Description
- 2 General Safety and Regulatory Information
- 3 Operation
- 4 Working with Base Stations from Your PC
- 5 Installation
- 6 Maintenance
- 7 Troubleshooting
- 8 Replacing Modules
- Appendix A – Interface Pin Allocations
- Appendix B – Inter-Module Connections
- Glossary
- Tait Software License Agreement
- Directive 1999/5/EC Declaration of Conformity
DRAFT 1
TB9300 Installation and Operation Manual Description 21
© Tait Limited May 2013
1.7.1 Signal Paths
Figure 1.6 gives an overview of signal paths within the reciter.
Digital DMR signals from the receive RF interface pass through the digital
receiver and DMR modem to the control software in the RISC processor.
The control software passes the signal through the Ethernet interface to the
node controller.
Input to the Ethernet interface is from the node controller. This input is
processed by the RISC and passed through the DMR modem to the
transmitter.
1.7.2 Online and Offline Modes
The base station normally operates in Online mode, but you can put it into
Offline mode via its web interface.
Online Mode In Online mode, the base station performs its normal functions.
Offline Mode Some procedures, such as activating firmware or running certain diagnostic
tests, require the base station to be in Offline mode. This takes the base
station out of service. However, the front panel is still operational and can
be used in the normal way.
Figure 1.6 Reciter signal paths
Modulator
Demodulator
DMR
Modem
Control
ADC DDC
DAC
RTP
UDP
IP
Transmit
RF Interface
Receive
RF Interface
Ethernet
Interface
Protocol
Stack
Reciter Control Board