iRn IR Driver Interface
The iR5/iR10 is a specialized interface for up to five or ten infrared sensor beams. This module has built-in power and logical connections to drive external IR sensors. It sends TTL events whenever the subject crosses the beam, without the need for any external signal processing.
- Manual trigger buttons for each IR port simplify testing and debugging
- Status lights for each IR beam monitor subject movement during sessions.
For information on software control of the iRn, see the Synapse Manual.
Manifolds
The iRn connects to a manifold via a DB25 cable.
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| iR5M Molex Manifold |
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| iR5m-RJ RJ22 Manifold |
iRSD38
The iRSD38 is an IR driver and sensor that connects to the iR5m-RJ / iR10m-RJ manifolds to form a beam break. The drivers have a red band around them and the sensors have a blue band. The modules have two mounting holes for flathead #4 screws. Standard cable length is 42".
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| iRSD38 Sensor and Driver |
Output Power
The IR LED output power is adjustable through Synapse software configuration (1-8). This adjusts an in-line resistor value from 4 kOhm to 500 Ohm. Power output depends on this power setting and the voltage drop of the LED. The table below shows the supply current for a typical IR LED with a 1.4 V voltage drop.
Sensor Input
The sensor power output has a 10 ohm resistor in line. The output voltage changes with the current draw as follows:
Receiver Pinout
When the Sensor output is pulled low, it triggers the event.
