Photron Fastcam SA5, Hardware Manual, Page: 71 / 107

59 FASTCAM SA5 / SA5 RV Hardware Manual
3.21. IRIG Time Code (External Time Synchronization)
The system supports IRIG-B input and can add an IRIG code to each recorded frame. The sample
timing for the IRIG code is once each frame.
The recorded IRIG code is displayed on the VIDEO display or with the “Photron FASTCAM VIEWER”
software.
IRIG Code Input Specification
Connector BNC
Code Format IRIG-B (122) Analog
Amplitude 1.2Vp-p min,8.0Vp-p
Modulation Ratio 2:1 to 4:1

IRIG Time Code is used when synchronizing a camera with external equipment in time.
It is a convenient function when apparatus is physically separated.

When the IRIG code is being input, the IRIG code is displayed in white, and is displayed to the left.

The IRIG offset time is also displayed below it. When the IRIG code is not being input, the IRIG
code is displayed in grey. At that time, the counter is the camera’s internal counter and it continues
to count.