Ultrak CRX-501, Инструкция по установке и эксплуатации

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2.5.4 Terminate Receive Communications.
The receive communications must be setup to stop communications at the
receiver or pass communication through to another receiver.
If there is only one receiver installed in a system, the receive
communications in the receiver should be terminated. If daisy-chain wiring is
used, the receive communications on the last receiver in the chain should be
terminated. All intermediate receivers should be unterminated.
Mother Board
Jumper W4
IN Terminate Receive Communications
OUT
Unterminate Receive Communications
2.5.5 Lens Zoom, Focus, And Iris Speed Control Setup.
The speed of the lens functions for the lens connected to the receiver is
adjustable from 6 to 12V. 6V is the slowest speed and 12V is the fastest
speed. There are three thumb-adjustable potentiometers on the mother
board. If Model CRX-502 or CRX-520 is installed, the expansion board has
three thumb-adjustable potentiometers for setting the speed of the lens
functions for the lens connected to the expansion board.
Mother Board
R11 Focus
R8 Zoom
R5 Iris