Extron electronics OCS 100C Setup Manual
Occupancy Sensor OCS 100C • Setup Guide
Blue Photocell
Sensitivity Dial
Black Timer
Dial
Green Ultrasonic
Sensitivity Dial
DIP Switches (B)
DIP Switches (A)
1
A
2
3
4
ON ON
1
B
2
3
4
1
2
3
4
1
2
3
4
Infrared Sensor
Red Infrared
Sensitivity Dial
Infrared (PIR)
Red LED
(status indicator)
1
2
3
4
1
2
3
4
Infrared (PIR)
The OCS 100C is a dual technology occupancy sensor that can be used to automate meeting and presentation spaces when
used with Extron control products. The OCS is equipped with ultrasonic (US), infrared (PIR), and photocell sensors that can be
used together to report ambient light conditions and room occupancy. Sensors can be wired directly to Extron controller products
equipped with Digital I/Os ports or via eBUS, when using optional eBUS interface accessories.
The OCS requires 24 VDC for operation. If local 24 V power is not available, use the included 12 V to 24 V power converter.
NOTE: The OCS 100C is designed to detect occupancy using both the PIR and US sensors with their default settings to
avoid false detections.
Front Panel Features and Control
Red LED
Ultrasonic
Sensors
Ultrasonic (US)
Green LED
(status indicator)
Fresnel Lens
Retainer Ring
Ultrasonic (US)
Green LED
(status indicator)
(status indicator)
DIP Switches (A)
Red Infrared
Sensitivity Dial
Black Timer
Dial
A
1
2
3
4
ON ON
B
1
2
3
4
Infrared Sensor
DIP Switches (B)
Green Ultrasonic
Sensitivity Dial
Blue Photocell
Sensitivity Dial
Figure 1. OCS 100C Front Panel Features
Figure 2. OCS 100C Controls
• Ultrasonic sensors (4) — Detect movement in the room, based on ultrasonic sound waves. The US sensor emits ultrasonic
sound waves into an area and measures the speed of their return to detect the presence of people. Frequency changes are
caused by the movement of people, which is detected by the US waves.
• Ultrasonic (US) Green LED status indicators (2) — Flash when the ultrasonic sensors detect occupancy.
• Fresnel lens — Diffracts the incoming light and directs the light to the infrared sensor.
• Retainer Ring — Holds the optional IR mask in place. Remove to access all controls and DIP switches. Insert the at end of
a small screwdriver into the notch in the retainer ring to lever it up and off.
• Infrared (PIR) Red LED status indicator — Located behind the fresnel lens, these LEDs ash when the infrared sensor
detects occupancy.
• Infrared Sensor — The infrared (PIR) sensor detects the presence of people based on the difference between the heat
generated by moving people versus the ambient room temperature.
• DIP Switches A —
A Switch Function OFF ON Note
1 Not used *Not used Not used Switch is not used.
2 Occupancy
detection
behavior - Dual
technology mode
3 Sensor status
indicators
4 Automatic adjust
reset
*Default and recommended settings
*Mutually
exclusive
(requires both
PIR and US
detection
*LEDs enabled LEDs disabled Setting A3 to OFF provides a visual notication whenever
*Retain
learned sensor
adjustments
Independent
(either PIR or US
detection)
Erase all learned
settings (toggle
ON, then OFF)
If A2 is set to OFF, both the PIR and US sensors must
be triggered (simultaneously) before the OCS reports an
occupancy signal. If A2 is set to ON, the OCS reports
occupancy based on only one of the sensors being
triggered. When only one sensor is desired, set A2 to ON
and adjust the dials accordingly. If A2 is ON, false detection
when the room is not occupied increases.
the PIR or US sensors are triggered. When the visual LED
indicators are a distraction or you want to disable the
ashing LEDs, A3 should be set to ON.
Only applicable when Timer (B3) or Sensitivity adjust (B4) or
both are set to Automatic mode (OFF). Toggling A4 ON then
OFF will reset any stored learned adjustments.
1
Occupancy Sensor OCS 100C • Setup Guide (Continued)
• DIP Switches B — (see figure2 on the previous page)
B Switch Function OFF ON Note
1 High Airow
compensator
2 Doorway mount *Disabled Enabled
3 Timer adjust Automatic *Manual Applies to the Timer (black), Infrared sensitivity (red), and Ultrasonic
4 Sensitivity adjust Automatic *Manual
*Default and recommended settings
NOTE: B3 and B4 must be set to ON for Manual mode, in order to adjust the timer, infrared sensitivity, and US sensitivity
dials manually.
• Black Timer Dial — The occupancy sensor has a built in timer feature. Use the black timer dial to set the amount of time
before the sensor triggers OFF. The factory default setting is 8 minutes.
• Timer range — 8 minutes to 42 minutes.
• Full counter clock wise (CCW) = 8 minutes
• Full clock wise (CW) = 42 minutes
• Timer operation —
• When the sensor detects motion, it instantly triggers ON.
• Once occupancy is no longer detected, the timer begins. If no motion is detected and the timer expires, then the
sensor triggers OFF.
*Disabled Enabled If enabled (set to ON) the sensor will not detect minor changes
and movement. This could result in missed detection, with a low
trigger-on threshold.
sensitivity (green) adjustment dials.
• Setting to Manual mode allows for more predicted behavior
and is better suited for automating AV applications.
• Setting to Automatic mode allows the sensor to learn over
time the ideal timer and sensitivity adjustments for the space
and usage trends. This is better suited for automating lighting
applications.
• All adjustment dials are disabled when set to Automatic (OFF).
NOTE: If it takes too long for the OCS to turn off when the room is unoccupied, adjust the timer to 8 minutes and
extend the timer via the configuration of the connected control processor. This setup reduces false detection.
• Test mode (8 second timer):
• Red Infrared Sensitivity Dial — Adjust this dial to increase or decrease infrared sensitivity.
• Green Ultrasonic Sensitivity Dial — Adjust this dial to increase or decrease ultrasonic sensitivity.
• Blue Photocell Sensitivity Dial — The photocell prevents the sensor from triggering on when the area is adequately lit with
2
1. Open the retainer ring.
2. Rotate the black timer dial to about midway (50% or 12 o’clock).
3. Return to minimum setting (full CCW).
4. The timer will remain in the 8 second test mode for 1 hour, then automatically reset to 8 minutes.
5. To manually force the timer out of the 8 second test mode, turn the timer adjustment approximately 1/16 inch
clockwise. The setting is slightly above minimum (just above the 8 minute setting).
• Turn clockwise (CW) to increase sensitivity. Minor movements are detected as occupancy.
• Turn counter clockwise (CCW) to decrease sensitivity. Major movements are needed to detect occupancy.
• The factory default setting is at 75%.
• Turn clockwise (CW) to increase sensitivity. Minor movement are detected as occupancy.
• Turn counter clockwise (CCW) to decrease sensitivity. Major movements are needed to detect occupancy.
• The factory default setting is at 50%.
natural light and motion is detected. The sensor must be mounted directly over an area that is representative of the average,
natural room lighting. Before setting the photocell control, wait until the natural light is brightest (optional).
Adjust this dial to increase or decrease photocell sensitivity.
• Turn counter clockwise to decrease photocell sensitivity, causing it to activate with less light.
• Turn clockwise to increase photocell sensitivity, requiring brighter light to activate the sensor.
• Factory default is 100% (full clockwise) — Photocell sensor is disabled.
• Range — 10 to 1000 LUX
Recommended Setup
Blue Photocell
Sensitivity Dial
Red Infrared
Sensitivity Dial
Green Ultrasonic
Sensitivity Dial
DIP Switches (B)
DIP Switches (A)
1
A
2
3
4
ON ON
1
B
2
3
4
1
2
3
4
1
2
3
4
Infrared (PIR)
Red LED
(status indicator)
Black Timer Dial
1
2
3
4
1
2
3
4
Infrared (PIR)
Red LED
Ultrasonic (US)
Green LED
(status indicator)
Ultrasonic (US)
Green LED
(status indicator)
DIP Switches (A)
Red Infrared
Sensitivity Dial
Black Timer Dial
A
1
2
3
4
ON ON
B
1
2
3
4
Figure 3. OCS 100C Front Panel Features and Controls
With the OCS in the default or recommended settings (A2 OFF), the OCS requires both the IR sensor AND the US sensor to
detect occupancy to turn ON. Only one sensor (PIR or US) needs to trigger to reset the timer for the OCS to remain ON while the
room is still occupied. When the OCS is in the OFF state, no occupancy is detected.
Follow these steps to setup the OCS to detect occupancy with minimal false detection:
NOTE: We recommend using the OCS 100C in the default settings when beginning the setup or the test mode. If needed,
make slight adjustments at a time from the default sensitivity settings.
1. Keep all the DIP switches and rotary dials in the default positions.
2. Set the OCS in Test Mode.
3. Enter the room several times to verify if the IR detector is detecting movement (red LEDs ash).
• If the red LEDs ash when entering the room, the default red infrared sensitivity dial is set correctly.
• Verify the red LEDs ash with movement throughout the room.
• If the red LEDs do not ash, turn the red infrared sensitivity dial to decrease or increase IR sensitivity, until the red LEDs
always ash when entering the room or making movements throughout the room.
• To avoid false detections when the room is unoccupied, do not adjust the sensor too sensitively.
4. Enter the room and verify if the US detector is detecting movement (green LEDs ash).
• If the green LEDs ash when entering the room, the default green ultrasonic range dial is set correctly. This sensor is very
sensitive.
• Verify the green LEDs ash with movement throughout the room.
• If the green LEDs do not ash, turn the green ultrasonic range dial to decrease or increase US sensitivity, until the green
LEDs always ash when entering the room or making movements throughout the room.
• To avoid false detections when the room is unoccupied, do not adjust the sensor too sensitively.
5. Leave the room and close the door. Wait until the Digital output state, relay or red and green LEDs stay OFF. Wait several
minutes to ensure there are no false detections.
• If the door remains open, the US sensor may detect changes.
• If possible, wait longer, to conrm no IR or US change is registered.
6. Enter the room again, to conrm the Digital input state relay, red and green LEDs turn ON.
(status indicator)
DIP Switches (B)
Green Ultrasonic
Sensitivity Dial
Blue Photocell
Sensitivity Dial
NOTE: After going through these steps and verifying the OCS is setup to accommodate the room, do not adjust the DIP
switches or dials.
Automatic Mode
Out of the box, the OCS 100C can be setup in Automatic Mode, where no manual sensitivity adjustments are needed and
sensitivity learning and adjustments are made automatically. For simple setup, we recommend keeping the OCS in the default
settings and ipping the B4 Dip switch to the OFF (Auto) position. The OCS is ready to mount (see Installation on page5).
3