ACR122S – Communication Protocol
Version 2.01
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Page 28 of 57
1 Hz = 1000 ms Time Interval = 500 ms ON + 500 ms OFF
T1 Duration = 500 ms = 05h
T2 Duration = 500 ms = 05h
Number of repetition = 03h
Link to Buzzer = 01h
APDU = “FF 00 40 D0 04 05 05 03 01”
Response = “90 00”
6.5. Topaz512 and Jewel96
Note:
This section only applies to ACR122S with firmware version 1.03.
This command is used to Write-with-erase (8 Bytes), Write-no-erase (8 Bytes), Read (8 Bytes) and
Read Segment.
Topaz 512 and Jewel 96 Command Format
Command
Class INS
P1
P2
Lc
Data In
Direct Transmit
FFh
00h
00h
00h
Number of bytes to
send
TAG Command
Where:
Lc
Number of bytes to send (1 Byte).
Maximum 255 bytes.
Data In
Tag Command.
The data to be sent to the tag.
