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- Connect IR sensor using RJ9 (4p4c) jack to 4 pin jack of "VT531 / Optical access sensor".
- Connect one end of RJ11 / RJ12 cable to the monitoring unit into any analog ports (A1...A8) and to RJ12 port of "VT531 / Optical access sensor".
- Put a sticker on the door opposite of IR sensor. Min. distance is 10 mm, max. distance is 35 mm.
- Access sensor will appear automatically in a System tree.
Adjusting sensor sensetivity and LED indication
Adjusting sensetivity
Use flat-head screwdriver to adjust the sensor sensetivity.
Turning the screwdriver clock-wise will increase view distance up to 3 - 4 cm.
Turning the screwdriver counterclock-wise will decrease the view distance down to 1 cm.
| Info |
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It is possible to decrease view distance of the sensor below 10mm, but only if the sticker is bend in a spherical shape. This is because IR sensor uses two beams which require some distance to work properly. |
LED indication
The sensor has red LED sticking out on top of the sensor. By default the sensor is configured to:
- If the door is closed, red light is Off.
- If the door is open, red light is On.
Installation inside a rack or cabinet using a bracket
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bracket
Mounting bracket
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Pic.1
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Pic. 2
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Pic. 3
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Installation
Bracket steel thickness is 0.8 mm. Below You can find how user users can mount "VT531 VT530 / Optical access Access sensor" with such a bracket.
Example 1
Bracket The sensor with the bracket is mounted to two captive nuts using two M6 bolts. Pliers used for fitting. VT531 plastic case is mounted onto the bracket using M4 bolts and M4 nuts. IR sensor is mounted using two M2x10 bolts and two M2 nuts. IR sensor is pointing towards the door.
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Example 2
Bracket is mounted to the rack using two 4.8*13 screws. Pliers used for fitting. VT531 plastic case is mounted onto the bracket using M4 bolts and M4 nuts. IR sensor is mounted using two M2x10 bolts and two M2 nuts. IR sensor is pointing towards the door.
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Example 3
Bracket is glued to the rack using a sticker. Pliers used for fitting. IR sensor is pointing towards the door. The door is opened in current case.
using an M4.8mm bolt to the top of the rack. The magnet is mounted using an M4.8mm bolt or a sticker to the door of the rack. When the door is closed, the magnet is close to the sensor. If the door is starting to open, the magnet will be far away and the sensor will show an alarm.
Cable pinouts
"RJ11/RJ12" to "RJ11/RJ12" cable pinouts:
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RJ9 4p4c to IR sensor cable pinouts:
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