ZKTECO KR612E Users Manual
125KHz User Manual
1. Overview
KR6**E Series 125KHz is a non-contact RF ID card reader that is developed based on the ISO/EM4001
international standard protocol. It adopts the high-performance RF card reader circuit designed by ZKTeco.
It is characterized by the high integration degree, strong anti-interference capability, compact size, stable
performance, and cost effectiveness. KR6**E Series provides the Wiegand 485 communication interface,
and is applicable to various RF identification fields, such as the access control, attendance, charging,
anti-theft, and patrol systems.
2. Features
The card reader is equipped with a card-reading antenna that works at 125KHz.
The effective distance ranges from 0 to 10cm, depending on the working environment and card type.
The data receiving time is less than 80ms within the effective distance.
The card reader adopts the single +12 VDC power supply, and the operating current is less than
80mA.
The card reader is produced using the fully closed rubber injecting operation to achieve the
waterproof and moisture-proof effects. The card has a keypad, and supports password identification.
The effective distance is associated with the voltage of the power supply, used ID cards, and operating
environment.
3. Wire Function Description
Red wire: VCC; +12V
Black wire: GND
Green wire: 485-
White wire: 485+
4. Specifications
(1) Limit Parameters
Item Value Unit
Dimensions (L x W x H)
Item Value Unit
+12V (Vcc) 12.5 V
R485+ 200 mA
R485- 200 mA
Hold, IH/Card Present (ICP) 25 mA
Antenna (IAN) 43 mA
Operating temperature (TOPR) -10 to 70 C
Storage temperature (TSTR) -55 to +125 C
Electrical and mechanical parameters (TA = 25, Vcc = 12V unless otherwise specified)
Item Minimum Typical Maximum Unit
+12V (Vcc) 7 12 14 V
Operating current (Ic) 60 80 mA
Operating frequency (FRES) 124.8 125 125.6 KHz
Effective distance (D*) 40 45 70 mm
Decoding time (TDEC) 65 100 ms
R485+/R485- input voltage -7V < Output < 12 V
R485+/R485- output voltage -7 < Output < 12 V
86 x 86 x 20 (tolerance: ±3mm) mm
(excluding the wire length)
5. RS485 Connections
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