Differences

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

--- glossary:hystloopbox [2023/10/26 22:47] – [RSE] add tag JohnFletcher
+++ glossary:hystloopbox [2025/09/13 11:16] (current) – [DTC] kit status update Bob Vetterlein
@@ Line 6: / Line 6: @@
 ==== DTC ====
-DTC (Dcc Track Circuit) as the name suggests is suitable for DCC only. One side of the Track Power supply is passed through a current transformer, when the track is occupied by a loco or stock fitted with resistors across the wheels, the resulting current is detected and an occupied status results on the module output(s). This module, MERG Kit 56, has 8 such detectors and is arranged such that the board may be separated into 4 self contained pairs. \\
+DTC (Dcc Track Circuit) as the name suggests is suitable for DCC only. One side of the Track Power supply is passed through a current transformer, when the track is occupied by a loco or stock fitted with resistors across the wheels, the resulting current is detected and an occupied status results on the module output(s). This module, MERG Kit 56*, has 8 such detectors and is arranged such that the board may be separated into 4 self contained pairs. \\
+*Kit 56 in its original design has been discontinued and replaced by Kit 56A, this of square format with 4 sensor circuits on 2 sides and the output connector in the centre. This cannot be divided up as the original and so a new kit (Kit 50 DTC2) has been designed to fill this need.
 ==== FTC ====
 FTC (Floating Track Circuit) is suitable for both DC and DCC track power, the detection is of the diode drop variety. The term Floating in its title refers to the fact that the power supply does not have to be tied to the track power. Although there is a 'common return' connection required, this is of high impedance. \\