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IV Connecting and Installing the Equipment
3 Connection Methods
- 16 -
EXTERNAL OUT
Functions:
Extended external output pins 1 and 2, both for strobe synchronizing output
This output is used mainly for synchronized firing of a stroboscope when capturing an image with
the DS-L1.
Electrical characteristics of strobe synchronizing output are open-collector output, maximum
input current = 10 mA, withstand voltage = 24 V, and internal resistance = 100 Ω.
The output pulse width is 67 ms.
This output can be connected to external devices that satisfy the following electrical
characteristics. (See the diagram below.)
• Strobe synchronizing output is tied to a power supply line of 24 V or less through a pullup
resistor R on the external device side.
• Inputs on the DS-L1 and external user device sides have the same GND potential or are
left floating.
When plugging a stroboscope or other external device into the EXTERNAL OUT
connector of the DS-L1, make sure the power for the external device is turned
off. If the power for the external device remains on, your eyes may be damaged
by unintended light emission.
(8) Connecting to a Power Supply
To prevent electric shock, turn off the power for the DS-L1 before making any connections.
Complete all other connections before plugging into a power supply.
When connecting the DS-L1 to a power supply, always use the specified AC adapter (DS AC
adapter) to which a dedicated power cord should be connected. Using the wrong AC adapter or
power cord may lead to a fire or other dangerous conditions.
This product belongs to electric shock protection class I and must be connected to a power outlet
with a protective ground terminal. If you misplace or damage the DS AC adapter power cord,
please contact your nearest Nikon representative.
100Ω
E≤24V
R≤E/10(kΩ)
ON-time level (100xE)/(R+100)(V)
Pins 1 and 2
OFF-time level E(V)
GND
Pin 3
DS-L1 side External device side
GND