KB688 What will it take to install Digitrax Transponding on my layout?

1.  Install BDL16 series occupancy detector(s).  BDL16, BDL162 and BDL168 occupancy detectors can be used together on the same layout.2.  Add RX4 transponder receivers to the zones you want to set up for transponding. (You won't need to cover every detection section on the railroad for effective coverage and reporting. Some areas will be detection only sections while others will have full transponding as needed.)  Use either two RX4s with your BDL168 to set up 8 transponding zones or use one RX4 if you only need 4 transponding zones.3.  All current production Digitrax decoders are transponder equipped. If you have decoders ...

KB681 Can I use non-Digitrax decoders on a Transponding layout?

Q:  Can I use non-Digitrax decoders on a Transponding layout?A: Yes.  If you want to add transponding to a decoder that does not have the feature, add TL1 or TF4 to the decoder.  Some non-Digitrax decoders that use supersonic features are not compatible with transponding unless you switch off the supersonic feature. Digitrax supersonic decoders are compatible with transponding and can be used in supersonic mode while transponding.

KB700 TL1 - Programming Address & Function Outputs

1. Before using your TL1, set its address. This may or may not be the same address as a mobile decoder already installed in the loco or car depending on how you are planning to use the TL1. In the case of TL1s being used as a stand alone transponder or as a function decoder, choose an address that is not associated with another mobile decoder address in use on the layout.2. Connect the RED & BLACK wires of the TL1 to a service mode DCC programmer and program the TL1's address as you would any mobile decoder address.Follow the ...