TDL2A

The TDL2A provides a half duplex link. Provided no two devices attempt to transmit simultaneously no further restrictions on data transmission need be made, as all transmit timing, valid data identification and datastream buffering is conducted by the unit. Synchronisation and framing words in the packet prevent the receiver outputting garbage in the absence of wanted RF signal or presence of interference. For multiple radio systems (polled networks) a TDL2A can be set to 1 of 8 unique addresses. As well as having unique addresses, the TDL2A allows operation on one of 5 pre-set frequencies in the 433MHz band. These frequencies are non-overlapping and simultaneous operation of TDL2As in the same area on different channels will be possible. Units are supplied on 433.925MHz (Ch0) as default.