VT450 front and back panel
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1. "TR" - "TR" is the the second switch labled as "2". This switch should be turned "ON" on the last sensor in the CAN chain.
Example 1: We have 1 CAN sensor connected to the master module VT8101 to bus "CAN 1". In such case the sensor should have TR switch "2" turned on.
Example 2: We have 5 sensors/units connected to the master module on bus "CAN 1" and 3 sensors/units connected to bus "CAN 2". In such a case the last sensor on each CAN bus should have TR "2" switched ON.
Do not use DIP switch "FR" labled "1", it should always be OFF. If this switched is turned ON, the module will turn off. This switch is only needed for programming purposes.
2. "CAN" - two equivalent digital connectors RJ12 for the connection to the master module, CAN sensors or CAN extensions on a CAN bus, with auto-sensing.
3. "PWR" - for connection of external power 12V. Internal input "+".
4. "1..6" - 6 fan sensor inputs.
Installation
Рис.1.1: FR в OFF, TR в ON. Рис.1.2: FR в OFF, TR в OFF.