Differences

This shows you the differences between two versions of the page.

--- glossary:glossary_r [2021/08/08 05:44] – Rearranged some entries to get it into alphabetical order Wayne
+++ glossary:glossary_r [2023/12/11 11:06] (current) – [RailCom] michael_smith
@@ Line 6: / Line 6: @@
 ===== RailCom ======
-A relatively new DCC standard to implement return messages from a train/decoder.  It was originally developed by Lenz, and is now a NMRA standard.  Further development is in progress by European companies, and this extension is called RailComPlus.
+A relatively new DCC standard to implement return messages from a train/decoder.  It was originally developed by Lenz, and is now a RailCommunity standard.  Further development is in progress by European companies, and this extension is called RailComPlus.
-RailCom works by having the command-station/booster stop driving the rails between DCC packets and placing a short circuit across the track for approx.470uS, during the inter-message idle packets and is known as the "cutout", then the decoder generates a 30 mA serial encoded signal on to the track. The data output by the decoder can be in either 1 or 2 "channels" or both, Channel 1 is for the loco address that the decoder will respond to. Channel 1 data is unsolicited data 2 (6 bit) bytes in size called datagrams, that is to say the data is sent out without being requested and is received and decoded by "local" detectors around the layout in track "blocks". Channel 2 data can be up to 6 (6 bit) bytes and is only transmitted out by the decoder in response to a command sent by the command station. this data is received and decoded by only one "global" detector on the layout. Therefore the maximum data transmitted in the DCC cutout period for CH1 and CH2 is 8 bytes (datagrams).
+RailCom works by having the command-station/booster stop driving the rails between DCC packets and placing a short circuit across the track for approx. 470uS, during the inter-message idle packets and is known as the "cutout", then the decoder generates a 30 mA serial encoded signal on to the track. The data output by the decoder can be in either Channel 1 or Channel 2 or both, Channel 1 is for the loco addresses that the decoder will respond to. Channel 1 data is unsolicited data 2 (6 bit) bytes in size called datagrams, that is to say the data is sent out without being requested and is received and decoded by "local" detectors around the layout in track "blocks". Channel 2 data can be up to 6 (6 bit) bytes and is only transmitted out by the decoder in response to a command sent by the command station. this data is received and decoded by only one "global" detector on the layout. Therefore the maximum data transmitted in the DCC cutout period for CH1 and CH2 is 8 bytes (datagrams).
-RailCom/Plus allows: the identification of unknown trains; block occupancy; transmission of train information, such as its actual speed; and more efficient 'on-the-main' programming.  See: [[http://www.nmra.org/sites/default/files/s-9.3.2_2012_12_10.pdf|NMRA standard]] and [[http://www.esu.eu/en/support/white-papers/railcomplusr/|ESU RailCom Plus]].
+An example of RailCom Channel 1 detectors are shown here [[projects:railcom]].
+RailCom/Plus allows: the identification of unknown trains; block occupancy; transmission of train information, such as its actual speed; and more efficient 'on-the-main' programming.  See: [[https://www.merg.org.uk/merg_wiki/lib/exe/fetch.php?media=dcc:specs:rcn-217.pdf|RailCommunity standard]] and [[http://www.esu.eu/en/support/white-papers/railcomplusr/|ESU RailCom Plus]].
@@ Line 89: / Line 91: @@
 **R**adio **F**requency **ID**entification\\
-[[wp>/RFID|Wikipedea entry]]\\
+[[wp>/RFID|Wikipedia: RFID]]\\
 [[glossary:thomasrfid|MERG Demonstration]]\\
 **MERG RFID systems**\\
@@ Line 103: / Line 105: @@
 ===== RLSC ======
-Reversed Linked Section Control is a method for the control of the switching of DC power to sections of track on a model railway layout.  It is described in Technical Bulletin T32/1 of April 2002.\\ Also see [[public:morag:start#files_from_morag_yahoo_group|here]] for articles on the subject.
+Reversed Linked Section Control is a method for the control of the switching of DC power to sections of track on a model railway layout.  It is described in Technical Bulletin T32/1 of April 2002.\\ Also see [[history:morag:start#files_from_morag_yahoo_group|here]] for articles on the subject.