MagTek MICR Plus RS-232 - Manual (Page 28)

MICR PLUS, RS-232
20
ID Card Decoding
The MSR has two modes of operation. In the first mode, ID Card decoding disabled, the MSR
will only read ISO encoded cards. In the second mode, ID Card decoding enabled, the MSR will
read and autodiscriminate ISO, AAMVA, and CDL encoded cards. When a card is swiped, the
LED indicator will turn red and indicated an error if any of the enabled tracks read is
incompatible with the selected mode of operation. Tk2 is a standard track for all types of cards.
LE - LED COMMAND
To control the LED, the LE command is sent with a hexadecimal digit (use ASCII characters for
the hex digit):
LE X
Where X = Hex digit 0-F.
An example of the “Blink Red Fast” command is:
LE 9
LE PARAMETERS
The codes and descriptions are shown in Table 4-7. The color cycle is four equal time periods of
0.1 second. This cycle is repeated for three seconds and then goes off. The description column
is a common expression of the state of the LED.
Table 4-7. LED Control
Color Cycle Hex Digit Description
Off/Off/Off/Off 0 LED Off
Green/Green/Green/Green 1 Steady Green
Red/Red/Red/Red/ 2 Steady Red
Amber/Amber/Amber/Amber 3 Steady Amber
Green/Green/Off/Off 4 Blink Green Slow
Red/Red/Off/Off 5 Blink Red Slow
Amber/Amber/Off/Off 6 Blink Amber Slow
Red/Red/Green/Green 7 Blink Red/Green Slow
Green/Off/Green/Off 8 Blink Green Fast
Red/Off/Red/Off 9 Blink Red Fast
Amber/Off/Amber/Off A Blink Amber Fast
Red/Green/Red/Green B Blink Red/Green Fast
Red/Green/Off/Off C Fast Red/Green Off
Green/Green/Green/Red D Green + Fast Red
Red/Red/Red/Green E Red + Fast Green
Off/Off/Off/Off F Off