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7.2. Assignment for 21MTC adapters (NEM 660/RCN-121)
In order to avoid damage due to a connection of the decoder with
reversed polarity, you sould remove the index pin (pin 11) at the 22-
pole plug connector. You can withdraw the pin with small pliers.
Mounting version 1 (a and b)
Socket terminal strip of the
decoder on top
Figure: Top side of the adapter PCB
Assignment for use according to 21MTC (NEM 660 / RCN-121)
11 = Index-Pin
Pin Name
1
Input1
2
Input2
3
AUX6
4
AUX4
5
ZBCLK
6
ZBDTA
7
F0r
Page 14
Adapter for PluX22-, 21MTC- and SUSI-Interface
Description MTC adapter
sensor input 1
sensor input 2
output 6
output 4
pulse generator train bus
data train bus (TxD, RxD)
lighting forward direction
Mounting version 2 (a and b)
Socket terminal strip of the
decoder at the bottom
Cable colour
yellow
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