ZIMO MX638 Series Instruction Manual page 66

Page 66 Non-Sound Decoder MX618 - MX638 and Sound Decoder MX640 - MX659
ADAPUS – "American" adapter boards for PluX22 decoder:
A new adapter board ADAPUS was created specifically for use in US models (Athearn, Kato etc.). It
is based on the original decoder board as found in many U.S. models, but unlike these, it allows ac-
cess to all 10 function outputs of the plugged-in ZIMO Sound decoder MX645P22. Here too, the ver-
sions ADAPUS15 and ADAPUS50 equipped with a voltage regulator offer low function output volt-
ages of 1.5V or 5V respectively.
Note: The low voltage can also be raised from 1.5V to 5V by bridging the solder pads shown on
the right (this may come in handy when the wrong board is at hand...). Many micro bulbs require
1.5V but servos usually 5V. For LED's the 5V, with appropriate resistors, is also the right choice.
Pictures:
ADAPUS15 with 1.5V low voltage, 71 x 18 x 4mm
ADAPUS15 with ZIMO decoder MX645P22, 71 x 18 x 7.8mm
The adaptor board also has the characteristic "fingers" that accept the original plastic caps for attach-
ing the connecting wires (if that is even desired).
Comparison of an original loco board (left) and the ADAPUS (right)
The function output FO8: is not present at the standardized PluX interface but is nevertheless avail-
able at the ZIMO MX645 decoder, exactly at the same location where the pin ("Index") on a "normal"
MX645P22 is missing (a PluX standard to prevent incorrect insertion). The decoder can also be or-
dered with this pin intact at special request...which makes the output FO8 accessible on the adapter
board (this decoder version though can no longer be plugged into a PluX interface, where the hole for
this pin is plugged – it is strictly speaking no longer a "PluX" decoder...).
Of course other PluX decoders, besides the 22-pin, such as the 12 or
16-pin PluX decoder can also be plugged into the adapter board. At-
tention must be paid though to the correct location within the 22-pin
socket when using 12 or 16 pin PluX decoders. The picture on the right
shows a MX630P16 (PluX-16) as an example:
Note: Unlike the MX633P22 or the MX645P22 that come with an energy
storage circuit, the MX630P16 does NOT! In these cases, such a circuit
should be added to the board externally (diode, choke coil and resistors
as per instruction manual). It would be simpler to use an MX633 as a
non-sound alternative to the MX630, equipped similarly as the MX645
(even suitable for gold caps).