Watchdog led, Table 3-2. options and reader responses – MagTek HALF CARD PORT User Manual

Page 22

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Half Card Port Powered Insertion Reader


14

Table 3-2. Options and Reader Responses

COMMAND

PREFIX

TO SET OPTION

TO CLEAR OPTION

(DEFAULT)

READER FUNCTION

<ESC> (0x1B)

S (0x53)

s (0x73)

Send STX

<ESC> (0x1B)

E (0x45)

e (0x65)

Send ETX

<ESC> (0x1B)

C (0x43)

c (0x63)

Send CR

<ESC> (0x1B)

P (0x50)

p (0x70)

Send ESC

<ESC> (0x1B)

B (0x42)

b (0x62)

Buffered Mode

<ESC> (0x1B)

G (0x47)

-

Green LED On, Red LED off

<ESC> (0x1B)

L (0x4C)

-

Red LED On, Green LED off

<ESC> (0x1B)

O (0x4F)

Both LEDs Off (default)

<ESC> (0x1B)

Q (0x51)

q (0x71)

Quiet Mode; Buffered Mode (reader
does not send status)

<ESC> (0x1B)

V (0x56)

New reader only

-

Version request. Same as the
program mode version request
command except the reader does
not send an ACK character in the
response.

<ESC> (0x1B)

X (0x58)

New reader only

See the exit program
mode command in the
program mode
command set section.

Enter program mode. See program
mode section for a full description.
The device will only respond to the
program mode command set when
in program mode.

Note

If DTR is dropped and restored, the setup options are returned to
the default state. Some default states can be modified by the
program mode command set in the new reader. The LED is
controlled by the Host.


WATCHDOG LED

A watchdog LED provides a visual clue to service personnel that the Reader electronics are
operational. This LED is located on the PCB and is designated D1. If power is applied and the
CPU is in its normal idle loop, the LED will continually blink green, on for approximately one
second, off for one second. If an encoded card is withdrawn from the Reader at the beginning of
the on cycle, the LED should give an extra short blink. For the new reader, the watchdog LED
remains off when the dual color LED is on.

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