the TS5 circuit board should be off. Place a rail car at sensor D1. Detector LED 1 should light. Remove the railcar and
verify that LED 1 turns off. If not, see
Sensor Troubleshooting
below.
Connect D2 sensor pair:
With power off, connect the red or orange wire from the IR LED to terminal 2K. Connect the
blue or green wire from the IR receiver to terminal 2F. As with sensor D1, how you connect the white and yellow wires will
determine whether the D2 detector will operate in 'Across-Track' or 'Reflective' mode.
When both sensor pairs are connected, there will be two yellow (or white) wires in 'X' and two white (or yellow) wires in 'R.'
Where two wires share the same terminal, twist the bare wire ends together to ensure a reliable connection.
Test D2 before connecting the next sensor pair. Turn on power. When all sensors are clear of objects, all detector LEDs on
the TS5 circuit board should be off. Place a rail car at sensor D2. Detector LED 2 should light. Remove the railcar and
verify that LED 2 turns off. If not, see
Sensor Troubleshooting
below.
➽
Pairing is important!
The IR LED that is connected to 1K must be paired on the layout with the IR receiver that is
connected to 1F. The IR LED that is connected to 2K must be paired with the IR receiver that is connected to 2F.
Additional wire may be spliced to the sensor leads if needed. Use similar twisted pair wire for total length up to 26 ft (8m).
Install and test detectors D3 and D4 in the same manner as D1 and D2 above. The D3 sensors connect to terminals 3K, 3F,
X and R. The D4 sensors connect to terminals 4K, 4F, X and R.
Detector D5
, if needed, is an external detector circuit such as an
Azatrax MRD1-NV. Install the infrared sensor and connect it to the
MRD1-NV according to the MRD1-NV instructions. Then connect
the MRD1-NV to the TS5 as shown here. The same power supply
used for the TS5 may also be used for the MRD1-NV.
Sensor Troubleshooting:
With trains clear of all sensors, the detector LEDs on the TS5 should be off. If any LED is on, correct the false sensing
condition.
To fix false sensing for
Across-Track
mode:
1. Verify that the sensor pair is wired correctly.
2. Make sure the IR LED and receiver are pointed at each other, and nothing is between them.
3. Shade the IR receiver from bright lights, and point it away from windows or other strong light sources.
4. Change the nearby room light from incandescent to a fluorescent or LED bulb if possible.
To fix false sensing for
Reflective
mode:
1. Verify that the sensor pair is wired correctly.
2. Pull the IR LED and its receiver a bit deeper into the roadbed.
3. Infrared light may be 'leaking' through the roadbed material from the IR LED to the IR receiver. Push a metal shim, such
as the tip of a hobby knife blade, vertically into the roadbed between the IR LED and receiver.
4. Is there an object above the sensor, such as a bridge, or an upper layout level? Mount the IR LED and its receiver at a
shallower angle, or paint the object flat black. Or use across-the-track sensing.
If a detector LED does not light when a train is present at the corresponding detector, correct the false clear condition.
To fix a false clear indication for
Across-Track
mode:
1. Verify that the sensor pair is wired correctly.
2. Adjust the sensor height so the train is fully blocking the light path from the IR LED to the IR receiver.
To fix a false clear indication for
Reflective
mode:
1. Verify that the sensor pair is wired correctly.
© 2022 Azatrax.com
TS5 installation guide - diamond crossing
pg. 5 of 10
White wire to 'X' for across-track mode
White wire to 'R' for Reflective mode
X
R
2K
2F
yellow
white
IR LED
(clear case)
IR receiver
(dark case)
red /
orange
blue /
green
white
yellow
X
R
2K
2F
IR LED
(clear case)
IR receiver
(dark case)
red /
orange
blue /
green
White wire to 'X' for across-track mode
White wire to 'R' for Reflective mode
X
R
2K
2F
yellow
white
IR LED
(clear case)
IR receiver
(dark case)
red /
orange
blue /
green
white
yellow
X
R
2K
2F
IR LED
(clear case)
IR receiver
(dark case)
red /
orange
blue /
green
D5
sensor
MRD1-NV
Q1
QC
D5
C
TS5
