Canon VB101 用户手册

Appendix

74LVC14

+3.3V

0.1

µF

10k

Ω

10k

Ω

10k

Ω

Inter

nal controller

Input terminals 

In1, In2

Output terminals 

Out1, Out2

+

-

The external device input terminals consist of 2 terminals (In1 and In2), one of which is '+' (red) and

another is '-' (black). The '-' terminal is grounded on the inside of the main unit. By connecting two

cables to the + and – terminals and then electrically short-circuiting across the terminals (ON) or

separating the connection (OFF), an interrupt can be generated for the internal controller. See "Picture

Recording and External Device I/O Settings Page" in Chapter 3 "Setup Procedures" (

→ P.49) for

information on the settings.

Connect any sensors and switches to terminals with electrically separate GND terminals and

power supplies.

The external device output terminals consist of 2 white terminals (Out1 and Out2). Both terminal

combinations are peers. The Internal controller switches the two output terminals to disconnected

or connected condition. The output terminals use optocouplers and are separate from the internal

circuit in the VB101. Loads connected to the output terminals should be within the following

ratings:

■Internal Connection Chart