Azatrax

 
Home
 
Train Detectors
 
USB
 
Signal Controllers
 
Crossing Signals
 
Block Signals
 
Reversing Tracks
 
Switch Control
 
Tortoise Motors
 
Exhibit Controller
 
Bell / Strobe
 
Relays
 
Power Supply
 
About Us
 
Contact
 
Links
     

How to wire Azatrax model train detectors as inputs to Digitrax™ DS64 and SE8C signal decoders.


 
Azatrax infrared train detectors can easily be wired as inputs to a Digitrax™ DS64 and SE8C Signal Decoders. This allows the SE8C to respond when a train arrives at a particular location on the layout.
 
MRD1, MRD2 and MRD8 train detectors are wired to the SE8C decoder in the same way as momentary push button switches or track block detectors. See the pin-out diagram for the SE8C edge connector in the Digitrax™ instruction manual.
 
 
Figure 1 on the right shows three Azatax MRD1 infrared train detectors connected to inputs SW01, DS02 and DS03 on a Digitrax™ SE8C. The SE8C has eight input connections for switch contacts, SW01 - SW08, and eight connections for track block detectors, DS01 - DS08.
  • Connect SE8C pin 2 (+VE sensor common) to the QC terminal of each MRD1 detector.
  • Connect the Q1 terminal of the first MRD1 to a DS or SW input on the SE8C. In this example the first MRD1 detector is connected to pin 4 (SW01).
  • Connect the Q1 terminal of the each remaining MRD1 to other DS or SW inputs on the SE8C. If you want multiple MRD1's to trigger the same response from the SE8C, then connect a single DS or SW input to the Q1 terminals of all those MRD1 detectors.
  • Connect an accessory power supply to all MRD1 detectors, terminals P1 and P2. The power supply should be 9 to 15 volts AC or DC.

 
Figure 2 on the right shows one Azatax MRD8 octal infrared train detector connected to inputs SW01 - SW04 and DS01 - DS04 on a Digitrax™ SE8C. You may connect the MRD8 outputs to any combination of DS and SW inputs on the SE8C.
  • Connect SE8C pin 2 (+VE sensor common) to the C14 or C58 terminal of the MRD8 detector.
  • Leave the jumper block on both pins of JMP1 on the MRD8.
  • Connect the Q1 - Q8 output terminals of the MRD8 to the DS and SW inputs on the SE8C.
  • Connect an accessory power supply to MRD8 terminals P1 and P2. The power supply should be 9 to 15 volts AC or DC.

 
Figure 3 shows one Azatax MRD8 octal infrared train detector connected to the eight inputs of a Digitrax™ DS64 stationary decoder.
  • Connect the DS64 +COM terminal to the C14 or C58 terminal of the MRD8 detector.
  • Leave the jumper block on both pins of JMP1 on the MRD8.
  • Connect the Q1 - Q8 output terminals of the MRD8 to the A and B input terminals of the DS64.
  • Connect an accessory power supply to MRD8 terminals P1 and P2. The power supply should be 9 to 15 volts AC or DC.

 
Figures 4 and 5 show how to connect one Azatax MRD6T or MRD6X HexDetex™ infrared train detector to the inputs of Digitrax™ DS64 and SE8C decoders.
 
The MRD6 detector circuits have low power logic level outputs rather than relay contacts. The MRD6 outputs are 'active low,' that is, they go to zero volts when a train is being detected, and they put out +5 volts when a train is not detected.
 
Conversely, the Digitrax™ circuits are 'active high.' They expect +5 volts in when a circuit is active, and zero volts in when a circuit is not active.
 
By routing the MRD6 outputs through the SSR6 solid state relay module the proper signal polarity is maintained at the Digitrax™ decoder inputs. The relays also ensure electrical isolation between the LocoNet™ system and any other layout power that may be connected to the MRD6 detectors.
se8c input wiring
Fig. 1 - MRD1 to SE8C detector wiring
 
se8c detector inputs
Fig. 2 - MRD8 to SE8C input wiring
 
ds64 detector inputs
Fig. 3 - MRD8 to DS64 input wiring
MRD6
Fig. 4 - MRD6 to Digitrax DS64 input wiring
MRD6
Fig. 5 - MRD6 to Digitrax SE8C input wiring


Choice of software to control the DS64 and SE8C decoders is up to the user.
Azatrax does not provide software.
 
For instructions how to wire Azatrax infrared train detectors to Viessmann or Märklin s88 feedback decoders click here.
 
To see all Azatrax infrared train detectors click here.
 
To learn about Azatrax infrared train detectors that connect directly to USB click here.

Send questions or comments via our contact page.



Paypal verified Home | Detectors | Block Signals | Switch Machines | Relays
Crossing Signals | Power Adapter | How to order | Contact us | Links
© copyright 2009-2017 Azatrax LLC, Longmont, Colorado