MagTek PORT POWERED - Manual (Page 9)

Section 1. Features and Specifications
3
In the unbuffered mode, data can be retrieved from the card after the card has been inserted and
while it is blocking the rear sensor. Issuing an “Inquiry Command” (see Section 3) will retrieve
data from the card.
Buffered Mode
When a card is inserted and removed, a read attempt is made during both insertion and removal.
Upon removal of the card if the read is successful, data (including the two sentinel characters) is
stored in a memory buffer on the Reader and is not transmitted until the Reader receives an
“Inquiry Command” from the host. This command is the ESCAPE character followed by “I”.
The data or error status is available when the back sensor is blocked, however the Release
Command will not clear the buffer. The Reader cannot read another card until the buffer is
cleared. To clear the buffer, the Host must transmit the ESCAPE character followed by “R”.
The unit will always output a 1 and enabled optional characters when the back sensor is first
blocked. It will output a 0 and enabled optional characters when the card has been withdrawn.
See Section 3, Table 3-4 for detailed examples.
RELATED DOCUMENTS
MagTek 99875125
The MagTek Device Drivers for Windows, Part Number
30037385; may be used with the Port Powered Insertion Reader.
The title of the manual is MagTek Device Drivers For Windows
Programming Reference Manual.
The Port Powered Insertion Reader will read cards that meet the standards defined by ISO
(International Standards Organization):
ISO 7811
Identification Cards - Mag-stripe Cards, Tracks 1-3
ISO 7810 Identification Cards - Physical Specifications (ID-1 Cards)
Available from ANSI
Phone 212-642-4900, www.ansi.org