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Any other 3rd OSDPv2 party reader/keypad/device
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Usually, OSDPv2 is back-compatible with OSDPv1 devices. However, each such device needs to be tested. |
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We recommend connecting no more than x2 devices/readers powering from VT485r. If you power too many devices, a fuse inside the monitoring unit will activate and it will power down the monitoring system.
Terminate B(-) and A(+) end of the line with a 120 Ohm resistor.
VT485r PCB has 120Ohm resistor termination.
Use only twisted pair cables for B(-) and A(+) conductors.
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