K3CH Smart Access Controller
“
Product Information
Specifications:
- Product Name: Smart Access Controller
- Model: K3CH
- Trade Mark: BYD
- Operating Temperature: -40°C to +85°C
- Modulation Type: ASK
- NFC Sensing Distance: 0-5cm (The longest
distance is not less than 2.75cm) - Operating Voltage: 5V
- Operating Current:
Product Usage Instructions:
Installation Location:
Install the smart access controller inside the external rearview
mirror of the vehicle.
Usage:
- Ensure the smart access controller is securely installed in the
external rearview mirror. - The controller receives NFC-related signals for analysis.
- Sends analyzed signals to the left body domain controller
through CAN for processing. - The NFC sensing distance ranges from 0-5cm, with a minimum
distance of 2.75cm. - Operate the smart access controller with a stable 5V power
supply.
Frequently Asked Questions (FAQ):
Q: What should I do if the smart access controller is not
detecting NFC signals?
A: Check the installation location and ensure it is properly
positioned inside the external rearview mirror. Verify the power
supply is stable at 5V.
Q: Can the smart access controller be used in extreme
temperatures?
A: Yes, the smart access controller can operate in temperatures
ranging from -40°C to +85°C.
“`
Product Name: Smart Access Controller Model: K3CH Trade Mark: BYD
As an important part of the vehicle end of the smart access system, the smart access controller integrates the NFC-related signal acquisition and identity authentication and related signal processing . Receive the NFC-related signals for analysis, and send it to the left body domain controller through CAN for processing.
Installation location
Installed inside the external rearview mirror
The main parameters Operating Temperature -40 to +85
operation Frequency 13.56MHZ±7K
Modulation Type
ASK
NFC Sensing distance 0-5cmThe longest
distance is not less than
2.75cm
Operating Voltage
5V
Operating Current
<200mA
Protection Class
IP6K7
CANFD
500K
Product Termination Connector Pin Definition
pin number
port name
port
Harness
signal type
definition connection
Connect to Power
the left
twisted
1
power
VBAT
domain
pair,Twisted
controller
with pin2
pin
GND
twisted
2
GND
GND
GND
pair,Twisted
with pin1
CANFD
Connect to signal
Smart
3
CAN1 CANFD1-H
twisted
access
pair,Twisted
network
with pin4
CANFD
Connect to signal
Smart
4
CAN2 CANFD1-L
twisted
access
pair,Twisted
network
with pin3
CANFD signal
5
CAN3 CANFD2-H reserve
twisted
pair,Twisted
with pin6
CANFD signal
6
CAN4 CANFD2-L reserve
twisted
pair,Twisted
with pin5
Steady state operating current/A <1A
<1A
<0.1A
<0.1A
power 5v
Remark
Orange line two-color (Yellow-green)
line Pink line
purple line
Yellow line
Grey line
Instruction: NFC: The product is located in inside the external rearview mirror of the vehicle. Users can use the smart card or a registered smartphone approach the product to receive the NFC-related signals for analysis, and send it to the left body domain controller through CAN for processing, finally realize the control of the door switch.
FCC WARNING
Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: — Reorient or relocate the receiving antenna. — Increase the separation between the equipment and receiver. — Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. — Consult the dealer or an experienced radio/TV technician for help. To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna.
EN
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: 1.This device may not cause interference. 2.This device must accept any interference, including interference that may cause undesired operation of the device.
FR
L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : 1.L’appareil ne doit pas produire de brouillage; 2.L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.
Documents / Resources
 |
BYD K3CH Smart Access Controller [pdf] User Manual 2A5DH-K3CH, 2A5DHK3CH, K3CH Smart Access Controller, K3CH, Smart Access Controller, Access Controller, Controller |