Nikon DS-Ri1 Anleitung Handbuch - Seite 21
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(3) When connecting external devices (trigger signal output devices)
Before making a connection, always turn off the DS-U3 and external devices.
When the DS-Qi1Mc is connected, image capture can be triggered from an external device by
supplying trigger signals to the EXT. I/O connector.
If you are connecting your own external device, use a device that meets the following
specifications.
Connector: φ3.5 mm, 3-pole pin jack
Functions
Pin 1: Exposure timing signal (output: HI active)
Pin 2: Trigger enable signal (output: HI active)
Pin 3: External trigger signal (input: HI active)
3.3 V
*
The TTL or LVTTL level signal can also be input from Pin 3.
Chapter 4
Connecting and Installing the Equipment
3
Connection Methods
GND
Pin 1
Pin 3
Pin 2
3.3 V
4.7 kΩ
Pin 1
100 Ω
3.3 V
4.7 kΩ
100 Ω
Pin 2
10 kΩ
Pin 3
DS-U3
- 13 -
Operates when the switch is off
(open)
Pulse width: 1 ms or more
External device