P a y R a n g e | B l u K e y P r o | U s e r M a n u a l
P a g e
22 | 23
3 IN1
Auxiliary input
4 AC2
Power supply output
5 AC1
Power supply output
6 RXD
Serial RX Data input
7 GND
Common for all signals
8 5V_IN
5V DC Input
9 OUT1
Auxiliary output
10 OUT2
Auxiliary output
Notes:
Direction of input and output is given from BKPro’s perspective.
GND is common for 5V_IN, DC_OUT and all inputs and outputs.
Power supply output is passed from MACHINE connector AC1/AC2 pins, can be AC or DC.
DC_OUT derived by rectifying and filtering input voltage provided to MACHINE connector
AC1/AC2 or AC1/GND input voltage. DC_OUT voltage depends on actual input voltage and total
load (40V for 24VAC input).
BKPro requires 5V supply voltage (up to 64mA load) provided by card reader to drive output
signals and reference input signals.
Attention: Do not connect CARD connector AC1/AC2 to devices that have only half‐wave rectifier (one of
AC1/AC2 is connected to GND, and another is connected to single diode). Doing so will damage BKPro
and card reader device. Connect GND/DC_OUT to the card reader power input!
Battery Connector Pinout
BKPro Battery connector is JST SM02B‐SURS‐TF (2‐pin). It is present only on RTC‐enable models, to
connect backup battery for the internal real‐time‐clock.
Pin Name
Type
Pin
Name
Type
1 3V_IN
(+) 3V from battery
2 GND
(‐) Common
Notes:
Recommended CR1632. Only lithium‐based 3V watch coin cell batteries are supported (e.g.
CR2016, CR2032).
Recommended Mating Parts
MACHINE Connector: JST PUDP‐12V‐S for 12‐pin models, JST PUDP‐18V‐S for 18‐pin models.
CARD Connector: JST PUDP‐10V‐S.
Battery Connector: JST 02SUR‐32S.
Document History
Issue
Date
Reason
0.1
16 Nov 2018
Initial Draft
0.2
3 Apr 2019
Regulatory approvals, electrical characteristics, models.
1.0
22 Apr 2019
Combine Reference Guide and Data Sheet into User Manual, add French regulatory statement.
