Mercury reader settings

2023-02-07Last updated

This is a complete list of Mercury reader settings; these settings correspond to specific reader hardware. Most readers in use today work on the Wiegand standard. To use smart cards or to set up Secure OSDP2 readers, refer to the specific readers' tech notes.

Function Description
Type of reader
Standard Wiegand
  • Sets Keypad mode to HID
  • Sets LED drive mode to Bi-color
  • Sets Wiegand pulses to ON
Standard Magstripe
  • Sets Keypad mode to None
  • Sets LED drive mode to Bi-color
  • Sets Trim zero bits to ON
  • Sets Format to nibble array to ON
  • Sets Allow bi-directional Mag decode to ON
  • Sets Supervised to ON
  • Sets Inputs come from reader to ON
Standard OSDP
  • Enables OSDP mode
  • Sets Keypad mode to HID
  • Sets LED drive mode to OSDP
OSDP 2
  • Enables OSDP mode
  • Sets Keypad mode to HID
  • Sets LED drive mode to Custom OSDP
This mode also allows for configuration of the reader port's bit rate, Tracing, Smart Card, address, and use of Secured Communication.
Standard F2F
  • Sets Keypad mode to HID
  • Sets LED drive mode to Bi-color
  • Sets Format to nibble array to ON
  • Sets Casi 1-wire F2F to ON
Supervised F2F
  • Sets Keypad mode to HID
  • Sets LED drive mode to Bi-color
  • Sets Format to nibble array to ON
  • Sets Casi 1-wire F2F to ON
  • Sets Supervised to ON
Supervised F2F with inputs
  • Sets Keypad mode to None
  • Sets LED drive mode to Bi-color
  • Sets Format to nibble array to ON
  • Sets Casi 1-wire F2F to ON
  • Sets Supervised to ON
  • Sets Inputs come from reader to ON
Custom Lets the user set any Keypad mode, LED drive mode, or other settings depending on reader hardware.
Keypad mode1
None No specific mode is active.
MR20 MR20 8-bit keypad format with tamper support.
HID HID 4-bit keypad format.
Indala Eight-bit Motorola/Indala format consisting of a 4-bit code and the same code inverted.
MR20 no tamper MR20 8-bit keypad format without tamper support.
4-bit, 60 second keep alive 4-bit keypad format with HID I'm Alive support set to a 60-second interval.
8-bit, 60 second keep alive 8-bit keypad format with HID I'm Alive support set to a 60-second interval.
4-bit, 10 second keep alive 4-bit keypad format with HID I'm Alive support set to a 10-second interval.
8-bit, 10 second keep alive 8-bit keypad format with HID I'm Alive support set to a 60-second interval.
LED drive mode
Bi-color Generic 1-wire, tri-state bi-color driver circuit.
2-wire Separate red and green driver with no buzzer.
Dorado-780 Two-wire driver with color conversion.
LCD Enables the LCD display driver on LCD-equipped readers.
Bioscrypt Enables the Bioscrypt interface.
OSDP Mirrors Wiegand LED and buzzer behavior on OSDP readers.
SNET Enables SNET on Honeywell controllers.
Custom OSDP Lets the user set custom OSDP settings.
Other controls
Wiegand pulses Enables Data 1/Data 0 Wiegand pulses.
Trim zero bits Removes leading zeros.
Format to nibble array Used for magstripe purposes.
Allow bi-directional Mag decode Sends decoded data no matter which direction card is swiped.
Allow Northern Mag decode Decodes 32-bit Wiegand data from certain Northern cards.
Casi 1-wire F2F In the Casi 1-wire F2F communication type, uses one wire for communication instead of two.
Supervised Enables supervision. Only used with F2F flag.
Inputs come from reader Sets inputs to come from the reader. Only used with F2F flag.

1 Mercury does not support keypad readers outputting PIN in 26-bit Wiegand mode (HID mode-14).