User Manual

SGD-SB2025NT-TUM, Part 1
Jan 12 Page 16 INSTALLATION & OPERATION
3.2 O PERATION
The SB2025 can operate in stand alone repeater mode as part of a Solar channel, or, in the case
of the SB2025NT, may be remotely controlled through the Ethernet port using the
Telecommunications Industry Association (TIA) DFSI protocol. Setting up the SB2025 to operate
in the wanted mode is straightforward and involves four main steps.
1. Using the SB2025 programming utilities ‘MxTools’ and the ET to set the software
configurable parameters.
2. Setting the hardware jumpers on the Micro Controller for the required options.
3. Adjusting the levels where necessary.
4. Making the necessary electrical connections to the radio and your system.
Generally, if the requirements have been fully specified at time of purchase, Steps 1 to 3 will
already have been done at the factory.
In the following sections, the hardware aspects of the setup procedure are described.
3.2.1 MxTools Utility
MxTools is a programming utility used to program channel data, configure and perform remote
diagnostics on the SB2025. It runs on a compatible Personal Computer (PC) and the MxTools
Inbuilt help menus cover use of the program.
3.2.2 Setting to Work
The following sections describe the steps necessary to set the SB2025 to operate as required.
3.2.2.1 Setting Micro Controller Jumpers
The Micro Controller component layout is shown in Figure 20 in Section 8 – Drawings. The
functions and default positions of the jumpers and Dual In-line Package (DIP) switches are shown
below.
The jumpers and DIP switches are used for setting the general configuration of the audio
processing for both the Tx and Rx paths as well as various miscellaneous functions.
A summary of the functions of the Micro Controller Jumpers is shown below in Table 4.
Table 4. Functions and Default Positions of the Micro Controller Jumpers.
Jumper Function/Description
Default
Selection
Default
Position
JMP1
Selects either default RUN or EMULATE mode for the
microprocessor.
Run 2-3
JMP2
Enables the WATCHDOG auto reset function in the
microprocessor.
Enabled 1-2
JMP3 No effect in SB2025. 1-2
JMP4 No effect in SB2025. 1-2
JMP5 No effect in SB2025. 2-3
JMP6 No effect in SB2025. 2-3
JMP7 No effect in SB2025. 2-3
JMP8
Enables a direct connection to the Tx modulator. Select
either Wide Band or Wide Band filtered and limited or nil.
DC-FM 2-3
JMP9 No effect in SB2025. 1-2