MagTek LOW POWER SHIFT-OUT - Manual (Page 11)

Low Power Shift-Out IntelliHead
5
SHIFT-OUT TIMING
Refer to MagTek specification 99875337 for details of the Shift-Out Timing. The following exception
exists for the IntelliHead in contrast to the ASIC specification given in 99875337.
Trst (Reset) = 1.5 ms minimum (not shown in timing diagram)
VDD off-time to guarantee a reset for the ASIC/Head unit. This is due to an RC power supply filter
inside the head.
Other differences exist when using the special low power armed-to-read state. These are detailed in
the
SHIFT-OUT PROTOCOL section above.