|Technique||Pro's||Con's||Retrofittable||PoM CV-read||Available since|
|RFID||Easy and inexpensive, except for the readers, to put transponders in all of the roling stock for tracking.|| Restricted² communication, ID only on enter. |
Only usable fore small scale like N, larger scales will run to fast for the reader to detect.
|Digitrax Transponding||Standard LocoNet, 'Listening' by wire¹.||Mounting of transponding receivers need some special attention. Not very reliable.||No¹¹||Yes, tested||1997|
|LISSY||Standard LocoNet, easy to install, open protocol.||Restricted² communication, only info on enter.||Yes||No||2004|
| RailCom® |
|After OpenDCC grounded and implemented BiDiB it became stable and usable.||Need new DCC equipment.||No||Yes|| 2010(Tams)
|Selectrix/Müt||Selectrix and address only.||Yes||No||-|
¹) Bundling detection sections is very flexible and 'unlimited'.
¹¹) None transponding decoders will cause unwanted events, so it is a DigiTrax only solution.
²) Data transfer is only possible at the “eye to eye” moment.
PoM = Programming on the Main, also referred as OPS (Operations Mode Programming).
- Very fast, no polling but direct answer.
- If only interested in CV-Read, only one transponder receiver is needed for the whole layout. (Transponding)
- Show ident code, or loco ID if a match is found in the table, in the clients.
- Set block as reserved in case it matches a loco.
- Check the ident code against the loco who reserved the block.
- Set block as reserved (with the restrictions below) in case the ident code matches a defined loco and the block allows half auto mode.
- The matching loco to the reported ident code will replace the occupying loco when the ident is different.
- If the block is empty nothing will happen.
- Report as ghost train in all other cases.
If the block state is set to “Accept Ident” and it is not reserved or occupied:
- The block symbol will show green until an ident code is reported.
- The block cannot be reserved by automatically running locos in this state.