Allied Vision Goldeye G, Technical Manual

Page: 72 / 136

66 Goldeye G Technical Manual V 2.0.0
Camera interfaces
Isolated out power (pin 10)
The Isolated Out Power must be connected to a power source for isolated signals
Out 2 and Out 3 . The voltage requirement is 3 to 30 V DC. The current requirement
for this supply is a function of the optical insulator collector current and the
number of outputs used in the system. Isolated Out Power wiring should be
physically close to Out 2 / Out 3 wiring to prevent parasitic coupling.
Input signals
Input signals allow the camera to be synchronized to an external event. The
camera can be programmed to trigger on the rising edge, falling edge, both edges,
or level of the signal. The camera can also be programmed to capture an image at
some programmable delay time after the trigger event.
In 1 ‐ non ‐ isolated (pin 4)
In 1 is not electrically isolated and can be used when environmental noise is
inconsequential, and a faster trigger response is required. To complete the trigger
circuit, connect trigger ground to External GND.
In 2 ‐ opto ‐ isolated (pin 11)
In 2 is optically isolated and can be used in electrically noisy environments to
prevent false trigger events. To complete the trigger circuit, connect trigger ground
to Isolated In GND . Compared to the non ‐ isolated trigger, In 2 has a longer
propagation time.
Trigger signal Input current
Required trigger signal: LVTTL (3.3 V), TTL (5 V) tolerated
Input current to be expected in TTL mode: 3 mA
Input current to be expected in LVTTL mode: 0.3 mA
Table 32: Input 1 ‐ trigger signal and input current
Trigger signal Input current
Trigger input voltage: V
in
(low): 0.0 V to 1.0 V
Trigger input voltage: V
in
(high): 3.0 V to 24.0 V
Input current to be expected: 5 mA
Table 33: Input 2 ‐ trigger signal and input current