Documentation page: https://vutlan.atlassian.net/wiki/spaces/DEN/pages/35127335/VT440+Dry+contacts+unit
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The number of dry contacts inside VT440 can be increased up to 64 with an extension module "VT32 / dry contacts module".
Physical description
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1. "1...32" - Dry contacts terminal.
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"TR" - is the nearest switch to CAN inputs. This switch should be turned "ON" on the last sensor in the CAN chain. The last sensor in the long chain with a length of more than 10 meters, the terminator should be in in the "OFF" position.
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pic.2.1: TR is ON, FR is OFF. pic.2.2: TR is OFF, FR is OFF.
Connecting CAN devices
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and sensors
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