1-3
03 Enable RS-232 port.................................................................................................. 3-27
04 Disable RS-232 port................................................................................................. 3-27
00 Set Communication parameters................................................................................3-27
05 Set RTS signal of RS-232 port................................................................................. 3-29
06 Read CTS signal of RS-232 port.............................................................................. 3-29
RS-485 port serial I/O using INT 33H...............................................................................3-29
01 Input data................................................................................................................ 3-29
02 Output data.............................................................................................................. 3-30
03 Enable RS-485 port for serial I/O............................................................................. 3-30
04 Disable RS-485 port for serial I/O............................................................................ 3-30
00 Set Communication parameters................................................................................3-31
05 Open RS-485 multi-bus to send out data.................................................................. 3-32
06 Close RS-485 multi-bus (release RS-485 bus).......................................................... 3-33
3.5. Relay Output / Digit Input / Buzzer / LED Indicator....................................................... 3-34
Set LED indicator ON/OFF INT 09H.................................................................................. 3-34
Read Photo Coupler Level state INT 08H..............................................................................3-34
Activate/Deactivate Relay ports INT 09H............................................................................ 3-35
1A Buzzer On/Off INT 21H......................................................................................... 3-35
1A Set buzzer volume INT 21H..................................................................................... 3-36
1B Get Security state INT 21H..................................................................................... 3-36
1B Alarm On/Off INT 21H........................................................................................... 3-36
54 Buzzer volume control with user-defined frequency and time INT 21H................... 3-37
Buzzer volume control with predefined frequency and time INT 35H.................................. 3-37
3.6. Internal/ External reader Port: INT 21H........................................................................ 3-38
51 Enable/Disable External reader port......................................................................... 3-38
18 Set external slot reader (only available for Barcode and Magnetic reader)................ 3-38
50 Read data from external reader(only available for Barcode and Magnetic reader)..... 3-39
52 Read Internal port.................................................................................................... 3-39
53 Enable/disable Internal reader.................................................................................. 3-40
1F Enable/Disable the Decoder of Wiegand Format (Proximity reader)......................... 3-40
1F Get Decoder status of Wiegand Format (Proximity reader)....................................... 3-41
1A Assign barcode or magnetic stripe input of Internal reader....................................... 3-41
1F Enable the decoding of a barcode symbology............................................................ 3-42
3.7. Miscellaneous: INT 21H................................................................................................ 3-42
1A Check lithium battery level...................................................................................... 3-42
1B Get Address ID of the terminal................................................................................ 3-43
25 Set interrupt vector.................................................................................................. 3-43
35 Get interrupt vector.................................................................................................. 3-43
36 Get free disk cluster................................................................................................. 3-44
1A Enable/disable system key-pressing commands: Warm start, Invoke user command menu,
Invoke supervisor mode......................................................................................................... 3-44
1E Change the Keyboard map....................................................................................... 3-44
3.8. DOS Manager.................................................................................................................3-46
01 Read stdin (wait if no key) and write it to stdout...................................................... 3-46
02 Write stdout............................................................................................................. 3-46
03 Read stdaux (COM2 RS-232 port)........................................................................... 3-47
04 Write stdaux (COM2 RS-232 port).......................................................................... 3-47
06 Read / Write stdin or return 0 if none is ready.......................................................... 3-47
07 Read stdin (wait if no key)....................................................................................... 3-48
08 Read stdin (wait if no key)....................................................................................... 3-48
09 Write character string to stdout................................................................................ 3-48
0A Keyboard buffer input.............................................................................................. 3-49
0B Keyhit check............................................................................................................ 3-49
2A Get System date....................................................................................................... 3-49