MagTek HALF CARD PORT - Manual (Page 25)

Section 3. Commands, Formats, Timing
17
TIMING FOR ID SIGN-ON AND TRANSMISSION BURSTS
Timing for the ID Sign-on and transmission bursts (5 ms with 10 ms between bursts) is shown in
Figure 3-1.
MCU*
150 ms (500 ms for the new reader)
Sign-on ID
Transmission
Burst
5 ms
10 ms
NOT TO SCALE
* Up to 1.5 seconds are required from DTR rising until the MCU comes out of reset.
Figure 3-1. Timing For ID Sign-on and Transmission Bursts.
The firmware controls the operation of ID Sign-on and Transmission bursts. The ID sign-on is
21088828A04 (21088842A01 in the new reader)
Where:
21088828 is the firmware part number,
A is the alpha revision, and
04 is the number sub-revision.