TDL2A-433-9 RADIOMETRIX, TDL2A-433-9 Datasheet - Page 2

• Manufacturer Part Number: TDL2A-433-9
• Description: TRANSCEIVER, UHF, DATA
• Manufacturer: RADIOMETRIX

Specifications of TDL2A-433-9

• Current Rating: 28mA
• Data Rate: 16 Kbps
• Data Rate Max: 160000bps
• External Depth: 7mm
• External Length / Height: 33mm
• External Width: 23mm
• Frequency: 433MHz
• Supply Voltage: 5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Configuring the TDi2
In order to use all the functions embedded in the on board TDL2A modem, the user must be aware of
the setup /programming facility, which allow different addresses and frequency channels to be set up,
and if necessary accesses diagnostic test modes.
The TDi2 is programmed through the same RS232 port that is used for sending/receiving data. An
RS232 terminal emulator (such as Aterm or HyperTerminal) is an ideal tool.
Connect the TDi2 directly (or via serial straight through cable) to the PC serial port.
To enter program mode, insert the PGM jumper (to pull the SETUP pin of TDL2A low) and run the PC
HyperTerminal program. In this mode the radio link is disabled, but characters sent (at 9600 baud, as
normal) to the unit are echoed back on the RXD pin.
The HyperTerminal should be set with the following settings.
9600 baud RS232, 8 bit data, no parity, 1 start bit, 1 or 2 stop bits. No flow control.
The unit will only respond to certain command strings:
ADDR0 to ADDR7 <CR><LF>
CHAN0 to CHAN4 <CR><LF>
A TDi2 will only communicate with a unit set to the same address and the same channel.
Address and channel numbers are stored in volatile memory. On power-up the TDi2 reverts to the
default in EEPROM (as supplied this is always address 0 and Channel 0)
SETPROGRAM <CR>
(these commands are normally only used for factory diagnostics)
NOTONE <CR>
LFTONE <CR>
HFTONE <CR>
# <CR>
A Carriage Return '<CR>' (00Dhex) should be entered after each command sequence to execute it.
Releasing the SETUP (by removing the PGM jumper) to high state returns the TDi2 to normal
operation
TDL2A Interface board - Short Technical Overview
Transmit unmodulated carrier
Transmit carrier modulated with 8KHz squarewave
Transmit carrier modulated with 16KHz squarewave
Transmitter off
Writes the current set address into EEPROM as the new default.
A tilda character (~, ascii 126dec) sent by the unit indicates end of
EEPROM write sequence
These commands set up one of 8 unique addresses. A TDi2 will
only communicate with a unit set to the same address.
These commands select one of 5 preset channels
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