MagTek MINI MICR USB - Manual (Page 25)

Section 4. Commands
17
VR - VERSION COMMAND
The Version command gives the current software revision in the MICR Reader. To execute, send
the VR command followed by a carriage return as follows:
VR
The MICR Reader responds as follows:
MICR data: [software revision]
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” command is:
LE 9
The codes and descriptions are shown in Table 4-7. The LE command will control the LED for three
seconds and then return it to the normal state. 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
Red/Red/Off/Off 5 Blink Red
Amber/Amber/Off/Off 6 Blink Amber
Red/Red/Green/Green 7 Blink Red/Green
Green/Off/Green/Off 8 Blink Green
Red/Off/Red/Off 9 Blink Red
Amber/Off/Amber/Off A Blink Amber
Red/Green/Red/Green B Blink Red/Green
Red/Green/Off/Off C Blink Red/Green
Green/Green/Green/Red D Blink Red/Green
Red/Red/Red/Green E Blink Red/Green
Off/Off/Off/Off F Off