User's Manual

MDS 05-4121A01, Rev. 02 TRM SB Integration Guide 19
3.0 TRANSCEIVER CONFIGURATION
AND DIAGNOSTIC COMMANDS
The transceiver’s configuration and diagnostics are performed through
the radio’s DATA INTERFACE connector through a “dumb” data terminal
interface—either a personal computer or dedicated terminal. An
EIA/RS-232 to TTL converter circuit may be required depending on
your installation design. Configuration and diagnostic activities may be
performed with the TRM SB removed from the user equipment or as an
installed module in your design.
If you choose to setup the transceiver before its final installation, you
may find the Test and Evaluation Assembly to be a convenient tool. (See
Test and Evaluation Assembly on Page 25 for details.)
Table 5 lists each command entry and a brief description of its purpose.
Programmable information is shown in brackets [ ] following the
command name.
To enter a command, type the command, followed by an
keystroke. For programming commands, the command is followed by
and the appropriate information or values, then
.
Table 5. Command Summary
Command Function
MODEM
MODEM—Data Configuration
Response indicates:
Payload data rate (BAUD)
+ Gaussian Bandwidth x Data Rate (BT)
+ Channel Spacing (BW)
For example: 9.6Kbps BT=.5 25KHz.
NOTE: Provides only an informational display. The
command cannot be used to configure the radio.
TX [xxx.xxxxx]
Transmit RF Channel Frequency
• The frequency must be within the operating range for the
unit.
• Up to 5 digits can be entered after the decimal point.
Trailing zeros are not required.
• Frequencies can be in either 5 or 6.25 kHz increments.
BAUD [xxxxx]
“Over-the-Air” Modem Speed
• Options: 4800, 8000, 9600, 16000 and 19200
• For synchronous payload data through the DATA
INTERFACE port (J100)
NOTES:
• Must complement BT and BW values.
(See Table 1 on Page 8.)
• Data rate for serial data (RXD/TXD) diagnostic/command
interface is always 38400
ENTER
SPACE
ENTER