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Accessory-decoders

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ACCESSORY- DECODERS

DECODER-FAMILIES	*MX820E*	MX820D	*MX820V*	*MX820X*	*MX820Y*	*MX820Z*
	for 1 turnout	waterproof	for 2 turnouts	with economical "light outputs" for signals
High resolution pictures for download : MX820E MX820D MX820V MX820X MX820Y MX820Z

Dimensions (mm)	19 x 11 x 2	23 x 12 x 3	19 x 11 x 3	19 x 11 x 2	19 x 11 x 3	19 x 11 x 3

Continuous current	1.0 A	1.0 A	1.0 A	1.0 A	1.0 A	1.0 A
The "continuous current" indicates the maximum output rate of the decoder (total), whereby average surrounding conditions are assumed. What limits the continuous current is the heat development, the integrated temperature sensor turns off the consumers when the PCB reaches about 100°C. Displaying overload (=overcurrent): the decoder quickly flashes the headlights (about 5Hz); it restarts the decoder after the PCB cooled down about 20°C.
Outputs fur switches/turnouts	1	1	2	1	2	-
The following can be connected (one only) to a "switch output": twin-coil motor motor EPL-motor two light bulbs Motor and EPL are thereby connected to 2 poles, the others to 3 poles - with a positive pole.
Light outputs	-	-	-	8	16	16
"Light outputs" are open collector outputs for LEDs (with an external resistor) or light bulbs, each to be switched to the common positive pole. Those outputs can be used for signals or other lighting set-up.
Switch inputs	2	2	4	2	4	-
Switch inputs are used for the recognition of switches'/turnouts' positions (switch contacts) or for "override switches".
Servo - outputs	-	-	-	-	-	-
Standard servos (Graupner, Robbe, etc.) can be controlled with these servo control wires.


Instruction manual	Instruction manual


MX821: Servo decoder with 8 outputs
*MX821S:*	*MX821V:*

	Like MX821S, but features additionally:
- 8 complete servo connections, each with 3 poles (5V or 6V supply, ground, control wire)	- 16 inputs for potential override switches, with which each turnout can be positioned either from the tracks or from an interlocking switch.
- power supply directly from the tracks (energy and DCC data) and/or an additional supply (so turnouts can also be swithed after an overcurrent); RailCom for feedback and reading CVs.	- 16 Open-collector outputs 100 mA each; various configurations possible, to connect a relay forfrog polarisation, or for signals that are addressed individually by definable additional or object addresses. This follows the same logic as the light outputs of the MX820.
Instruction manual:	Instruction manual

Last update: 2018 07 18