2 INSTALLATION MECHANICAL HF SSB TRANSMITTER T2130
2.3.3 SYSTEM FUNCTIONAL DESCRIPTION
This section describes mainly the overall functions of the software in the T2130.
The main functions are described in sections, where section 2.3.3.1. SP-BUS COMMUNICATION TO
2130 is a common section to be read in conjunction with the others.
In order to have the full understanding of the mode of operation of the T2130, section 2.3.3. SYSTEM
FUNCTIONAL DESCRIPTION has to be read together with section 5. CIRCUIT DESCRIPTION.
This section describes the following functions:
- 2.3.3.1 SP-BUS COMMUNICATION TO T2130
- 2.3.3.2 AUTOMATIC POWER SETTING
- 2.3.3.3 TUNING THE AT2110
- 2.3.3.4 TRANSMIT SUPERVISING
- 2.3.3.5 CALIBRATION OF THE T2130
2.3.3.1 SP BUS COMMUNICATION TO T2130
The SP-Bus is a time-multiplexed serial data bus. The RE2100 is the master and the T2130 is one of
several slaves. The T2130 is assigned a given slave address. RE2100 initiates and controls all
communication to the T2130. This means that all activities performed in T2130 is controlled by the
RE2100.
The T2130 may receive a number of commands according to the expected action in the T2130. When the
T2130 has received a message it must replay immediately. The T2130 has four different options to answer
the RE2100:
A: The received command is understood and is executed.
B: The received command is understood and T2130 is busy executing the command.
C: The received command is understood and is executed. The T2130 has information for the
RE2100.
D: A communication error is detected. The command is not executed. The error can be a parity
error or a message length error.
The answer options A, B, and C may be followed by information related to the specific command. If the
T2130 does not answer the RE2100, the RE2100 is repeating the command a number of times.
If the T2130 does still not answer, an error (Error 20) will occur in the display in the RE2100.
COMMANDS AND ANSWERS.
In the following the commands to the T2130 and the answers from T2130 are described.
SYNCRONIZE/STATUS AND ERROR CODE
This command/answer is used in two situations:
9315
PAGE 2-24
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