Differences

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--- glossary:glossary_b [2019/09/05 17:31] – [Baud] Clarify. Also link to Cnet is no longer working tgerbic
+++ glossary:glossary_b [2020/09/14 14:39] – [BC3] grovenor
@@ Line 6: / Line 6: @@
-Back EMF generally refers to the voltage that will appear across an inductor if the current is stopped suddenly and in particular to the voltage generated by the rotation of a motor.\\
+Back EMF generally refers to the voltage generated by the rotation of a motor but also to the voltage that will appear across an inductor if the current is changed or stopped suddenly.\\
 [[:glossary:back_emf|Main article]]
 ===== Baud =====
-Baud in communications refers to changes per second. In the very early days of MODEMs, for example, each bit sent equaled a single change, so baud equaled bits per second (BPS). The terms were initially interchangable. As newer modulation methods (the way the signal is sent or encoded) came along a baud represented more than one bit per second. For example a single baud may have represented two, three or four bits for each change. From that point forward, baud and BPS were no longer the same, though many people still use them interchangably. For the sake of clarity, use BPS to represent the number of bits sent per second.
+Baud in communications refers to changes per second. In the very early days of MODEMs, for example, each bit sent equaled a single change, so baud equaled bits per second (BPS). The terms were initially interchangable. As newer modulation methods (the way the signal is sent or encoded) came along a baud represented more than one bit per second. For example a single baud may have represented two, three or four bits for each change. From that point forward, baud and BPS were no longer the same, though many people still use the terms interchangably. For the sake of clarity, use BPS to represent the number of bits sent per second.\\
+[[wp>Baud|Baud]]
 ===== BC3 =====
-The BC3 is an automatic block control system otherwise known as SuperBloc (QV). It controls the speed of a model train depending on the occupation of the block ahead. If the block ahead is occupied the train will slow to a creep speed and stop at a designated point. Otherwise the train will accelerate to a preset speed. Manual control is also allowed for. Kits for the [[:kits:38|BC3]] and literature about it is available from MERG - TBs T33/0-20.\\
+The BC3 is an automatic block control system otherwise known as SuperBloc (QV). It controls the speed of a model train depending on the occupation of the block ahead. If the block ahead is occupied the train will slow to a creep speed and stop at a designated point. Otherwise the train will accelerate to a preset speed. Manual control is also allowed for. Literature about it is available from MERG - TBs T33/0-20.\\
-The BC3 kit is No38 Nos 39 and 40 are a test jig and a setting up kit. Kit instructions for 38 and 39 are available from MERG.\\
+although kits have been discontinued. The BC3 kit is No38 Nos 39 and 40 are a test jig and a setting up kit.
-[[https://merg.org.uk/merg_resources/superbloc.php|Superbloc]]\\
+[[:glossary:blong|Blong]]
-[[:glossary:blong|Main article]]
 ===== Bell signals =====
-Bell Signals were used to convey information from between signal boxes.\\
+Bell Signals are used as part of a block signaling protocol.
-[[http://www.signalbox.org/block/bells.shtml|http://www.signalbox.org/block/bells.shtml]]
+The cadence of the Bell Signals were used to convey information. An example would be two bell rings would mean a train is entering a section and two rings followed by one ring may mean the train is clearing a section.
+Though there are some universal bell signals, different railroads at different times have had their own signaling schemes.
+\\
+[[https://signalbox.org/block.shtml|THE SIGNAL BOX website - Block System]]
 ===== BGA =====