Model 152 Smart Card Reader/Writer Operation Instructions
8182760 Revision G Copyright Axiohm 1998 All Rights Reserved
Page 1.2
The Data portion of a message for a command is structured differently from the Data portion of
a message for a response. The command structure codes the command and any data (reader
control or TPDU) that may be needed to carrry out the command.
The response structure always has an Operation Status Byte (OSB) as the first character of the
response. After the Operation Status Byte, any other data (reader specific information or TPDU
response).
Header
Data
Trailer
TYPE
LEN
OSB response data
BCC
ETX
Table 13 - TLP-224 Operation Status Bytes
Status
Meaning
00
Command executed without problems
03
Byte Receive Error (with NAK message)
04
Unknown Command
05
BCC Error (with NAK message)
07
Invalid Command parameters
08
Length Error (with NAK message)
A2
Card not supported (after ICC Power ON command)
A3
Card Communication Error (parity, timing, etc.; -- after ICC Power ON command)
E3
Same as A3, but with command other than ICC Power ON
E4
Inconsistent Procedure Byte from card (T=0 only, DA or DB commands)
E5
Card Interrupted Communications, check TPDU structure and sequence
E7
WARNING. TPDU response status (SW1/SW2) not = “9000"
F7
Card Removed Since Last Operation; this status is sent only once
FB
Card Not Present