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6.3. Input/Output of Timing Signals
6.3.1. Input of Timing Signals
It is not possible to synchronize the camera from an external sync source except by an extern
trigger pulse. The camera will always run with its internal X-tal controlled timing.
Trigger input through Camera Link. TI=0
Trigger input as TTL on pin #10 on 12 pin Hirose. TI=1
The trigger polarity is active low. TP=0
Trigger input can be changed to active high. TP=1
The trigger input on pin #10 on the 12 pin Hirose connector can be 75 Ω terminated with the
internal switch SW 300-1 ON.
6.3.2. Output of Timing Signals
To synchronize the video data transfer from the camera the following signals are available in a
base configuration of Camera Link:
FVAL Frame valid High for valid Frame
LVAL Line valid High for valid line
PCLK Pixel clock
DVAL Data valid High for valid data
EEN Exposure enable Low during exposure
See the full connector pin assignment for Camera Link in chapter 5.3 and 5.4.5
For complete documentation on the Camera Link standard, please contact your JAI distributor.
EEN is also found as a TTL signal on pin #9 on the 12 pin Hirose. EEN is low during exposure.
6.4. Trigger Modes
This camera can operate in 4 primary modes. 1 non-triggered, 2 external asynchronous trigger
modes and auto trigger mode.
1. Normal continuous Mode. TR=0 Pre-selected exposure. (SM=0, SM=1)
2. Edge Pre-select Mode. TR=1 Pre-selected exposure. (SM=0, SM=1)
3. Pulse Width Control Mode. TR=2 Pulse width controlled exposure.
4. Auto Trigger Mode. TR=3 >3 line window, <5404 fps
In normal continuous mode (TR=0) and edge pre-select mode (TR=1) the shutter time can be
selected from the normal 8 fixed steps (SM=0), or it can be selected from the 2 to 493 steps
programmable (SM=1). In programmable exposure the actual exposure is 1 LVAL less than the PE
value.
The trigger pulse width should be >1 LVAL to <3 FVAL. (>16.8 µsec. to <25 msec.)
In pulse width control (TR=2) the trigger pulse width should be >1 LVAL to <237 FVAL. (>16.8
µsec. to <2 sec.)
Windows of interest (WS=1) can be used in normal, edge pre-select and pulse width control
mode. (TR=0, TR=1 and TR=2).