JAI RM-670, User Manual

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RM-67X Series
20 Software Introduction & Installation
Figure 8. Vertical timing details for interlaced. CCIR
Note: Fig. 9 through fig.10 on the following pages shows horizontal and vertical timing details for interlaced
and non-interlaced.
3.2.2 External Trigger Modes
This camera has 3 external asynchronous trigger modes, which can be set by RS-232C commands.
0. Async Reset Trig resets start frame
1. Edge Pre-select Mode. Pre-selected exposure through shutter speed
2. Pulse Width Control Mode. Pulse width controlled exposure through Pin 12 Trig In.
An external trigger pulse initiates the capture (input on pin 12 of the 15-pin connector). The falling edge of the trigger
pulse initiates the exposure and the duration of the pulse governs the exposure (accumulation) time.
The duration of the external trigger pulse must be greater than 1H. It is recommended to make this longer, typically 9H.
3.2.2.1 Async Reset Mode
The falling edge of the trigger pulse resets the image readout and initiates the start of a new frame. It then operates in
continuous mode until the trigger comes again.
To use this mode:
Input: Ext. trigger to pin 14 on 15 pin connector.
Set MFI mode: “Trigger mode”
Set MFI Termination: “Hi Z”
Set Trigger mode: “Async Reset”
Set Vertical mode: “Field or Frame”