MagTek MT-211232 RS-232 1 OR 2 TRACK - Manual (Page 11)

Section 1. Features and Specifications
3
Buffered Mode
In the buffered operating mode, the Reader stores the card data in a memory buffer and does not
transmit any data to the host until an Inquiry Command is received. Upon receipt of an Inquiry
Command, data is transmitted to the host. If no data is present in the memory buffer, only the
ASCII “R” will be transmitted. Data is not cleared from the memory buffer until a Release
Command is received. The Reader cannot read another card until the buffer is cleared, and the
green LED is lit. Refer to Section 3, Table 3-1, for Buffer Commands I and R.
CONFIGURATION
The Reader, LED Indicator, RJ11 Jack, pin numbers for the 9-pin connector, and the Power
Adapter are shown in Figure 1-2.
To Host
Figure 1-2. Reader Cable and Power Adapter