AT-200CL
- 11 -
5.4. Rear Panel indication
The rear panel mounted LED provides the following
information:
Amber
: Power connected - initiating
Steady green : Camera is operating in Continuous mode
Flashing green : The camera is receiving external trigger
Fig.6. rear panel
6. Input and output circuits
This chapter introduces the basic diagram and bit allocation of digital output.
6.1. Iris video output
This signal can be used for lens iris control In Continuous
and RCT modes. The signal is NUM luminance signal and
passes through the gain circuit. However, due to reversed
compensation applied, the gain settings do not influence
this signal. The iris video output is 0.7 V p-p from 75
and without sync. This signal is always output except EPS
and PWC modes.
Fig. 7. Iris video output.
6.2. Trigger input
When TI=1, the trigger input is on pin #10 on
the 12-pin connector. The input is AC coupled.
To allow a long pulse width, the input circuit
is a flip-flop, which is toggled by the negative
or positive differentiated spikes caused by the
falling or rising trigger edges.
The trigger polarity can be changed by TP=1.
Trigger input level is 4 V
2 V. It can be
terminated by SW600 : ON for 75
. OFF for
TTL. The trigger inputs can be changed to
Camera Link. (TI=0 for CL)
Fig. 8. Trigger input.
DAC
Iris Video
2K2
1K
１μ
0.1
μ
+5V
+5V
●
●
●
●
●
SW600
TTL
1K
100K
0.001
μ
0.1
μ
１
K2
15K
39K
75
HIROSE 12P
#10
DIG
ITAL I / O - 2
DC IN
/TRIG
/TRIG
POWER
DIG
ITAL I / O - 1
