New Force communication Technology NFC-4311 433MHz Active Reader User Manual Instruction of NFC 4311
Shenzhen New Force communication Technology Co.,Ltd 433MHz Active Reader Instruction of NFC 4311
User Manual

Shenzhen New Force Communication Technology Co., Ltd
Leading RFID supplier Http: //www.rfid-nfc.com Hotline: 400--602--0005
Page 1
Instruction of NFC-4311
NFC-4311 is one of 433MHz RFID series that we independently developed. With contactless, free from
environment impact, long reading distance, excellent anti-collision etc, NFC-4311 reader is applied to various field.
Currently NFC-4311 has widely applied to logistics and warehouse intelligent management, transportation intelligent
management and school management, luggage parcel management, docks container management ant personnel
positioning system etc.
1. Overview
NFC-4311 is 433MHz RFID reader with integrity structure and full-function. It includes RF Module、central
control unit, input/output ports, Ethernet module, serial communication interface, non-volatile memory modules and
working status indication module etc.
NFC-4311 support NFC company protocol. To meet the requirement about protocol and function expanding, and
protect user’s investment, the reader can be upgraded with our upgrade software conveniently.
Figure 1 NFC-4311
2. Product features
l Small in size and easy to install
l Long communication distance and high receiving sensitivity. The reading distance is 0-100m when
connecting 2 dBi omni-directional antenna outside.
l Excellent anti-collision performance, up to 500 tags read simultaneously;
l Communication interface: There are 6 kinds of conventional communication interface, such as RS-232,
RS-485, Wiegand26/34/42/50, USB, CAN and Ethernet. Other interfaces can also be customized for user’s
demand, such as GPRS, Bluetooth, 3G and WIFI etc.;
l Led indicator and buzzer with esthetic intuition design;
l NFC company protocol, which also can be customized and extended other protocol for user’s demand;
l More optional function can be customized to meet customers’ requirement;
l Compatible with other tag protocol, and also enhance the price-quality ratio on system applications;
l Provide API software so that user can complete their development soon.
3. Function introduction
l Support protocol: NFC-4311 adopts NFC company protocol for development, meanwhile, it also compatible
with the communication protocol of other suppliers;

Shenzhen New Force Communication Technology Co., Ltd
Leading RFID supplier Http: //www.rfid-nfc.com Hotline: 400--602--0005
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l Protocol specific optimization: NFC-4311 can be optimized for protocol of other manufacturer or for a
specific protocol, making it possible to enhance the price-quality ratio on close-loop system applications;
l Off-line function: Reader is designed with nonvolatile memory for storage of tag data, when the
communication is failed between reader and application system, the identified tag ID can be stored into reader
to ensure the stable work;
l ID matching function: NFC-4311 reader has built-in nonvolatile memory. In a close-loop application system,
user can store the required tag data in the nonvolatile memory in advance, when reader identify tags, it will
compare the tag data with the stored tag, and then perform the action which predefined by reader or designed
by user;
l Input/Output function: The reader is designed with 1 trigger input, it will identify tags in accordance with
external trigger commands, so as to meet green energy requirements and reduces energy consumption. It’s
also designed with 2 relay outputs;
l Time function: Reader comes with a built-in real time clock, which can set up and read reader time. It also
supports time-stamp function under off-line working mode to meet precisely user’s application design for
time;
l RSSI function: NFC-4311 supports RSSI function, it can detect signal strength so as to realize positioning
function;
l Data security: Provide three kinds of encryption method, including AES encryption, link layer encryption and
random number encrypted, to ensure the security of data transmission;
l Anti-interference function: Reader adopts channel isolation technique assures non-interference among
different equipments;
l Tag reading/writing function: Tag reading/writing function can be realized;
l Upgrade function: NFC-4311 reader supports the firmware online upgrade function to optimize the
performance.
4. Technology parameter
Table 1: NFC-4311 technology parameter
NFC-4311 Technology parameter
Technology parameter Specifications
Operating frequency 433.050-434.790MHz (Working frequency can be configured by our software)
Antenna Reverse Polarity (RP-SMA) Antenna
RF power range -30.0dBm-10.0dBm
Receiving sensitivity -112.0dBm
Operating mode fixed frequency
Modulation ASK
Communication rate 250Kbps, 1Mbps, 2Mbps (set by software)
Reading/writing Range
0~100m (Standard matched 2dBi Omni-directional antenna)
Remark: With RSSI function,the reading distance of NFC-4311 can be
controlled within 3m.
Anti-collision Up to 1000 tags read simultaneously

Shenzhen New Force Communication Technology Co., Ltd
Leading RFID supplier Http: //www.rfid-nfc.com Hotline: 400--602--0005
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Buffer capacity 2000 tags data
Communication
interface RS-232, RS-485, USB, Wiegand26/34/42/50, RJ45
Input/output 1triggering input
Optional function 2 relays, CAN, RSSI, ID match function, Offline function and Time function
AES encryption: AES-128bits key encryption to prevent data from being
eavesdropped, to ensure the safety of data transmission.
Link layer encryption: Data link layer specified command, response frame
types and data formats. Command frame can be user-defined.
Data Encryption
Random No. encrypted:Random No. Generator is the formation of key data
encryption, prevent data from being eavesdropped, to ensure the security of
data transmission.
Power supply AC input: 100~240V, 50/60Hz 1.2A
DC output: 5V/1A
Product size 134mm*99mm*34mm
Packing size 284mm*275mm*85mm
Gross weight 0.79kg
Net weight 0.25kg
Working temperature -20℃~+70℃
Storage temperature -40℃~+85℃
Accessories Power adapter, Power cable, RS-232 cable, USB cable, Ethernet cable
Work status indication Communication indicator, Power indicator, Buzzer, LED indicator
5. Packing and interface instruction
5.1. Packing list
Please confirm all items are present upon receiving the package. If any question, please contact our sales
representative directly.
Please check the packing list of NFC-4311 as table 2.
Table 1: NFC-4311 packing list
NFC-4311 Packing list
No. Item description Quantity Unit
1 NFC-4311 1 Set
2 Reverse Polarity
(RP-SMA)antenna 1 Piece
3 RS-232 cable 1 Set
4 USB cable 1 Set
5 Ethernet cable 1 Piece
6 5V/1A power adaptor 1 Set

Shenzhen New Force Communication Technology Co., Ltd
Leading RFID supplier Http: //www.rfid-nfc.com Hotline: 400--602--0005
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7 Packing list 1 Piece
5.2. Appearance
NFC-4311 is cuboid and medium grey color designed, it could be installed on wood, concrete, desk or brick
surfaces, and also be put on the desk etc. NFC-4311 is designed with four holes, which can be fixed by screw.
5.3. Interface insruction
l DB9
DB9 socket is RS-232 serial port sockets, which can be compatible with other communication interface
Table 3: DB9 pin assignment
DB9 pin assignment
Pin number Signal name Signal function
1 T1/K1 Trigger/relay 1(optional)
2 RXD RS -232TXD
3 TXD RS -232TXD
4 K1 Relay 1
5 GND Ground
6 DATA0/K2 Wiegand data 0/relay 2(optional)
7 DATA1/K2 Wiegand data 1/relay 2(optional)
8 B-/CAN Wiegand data 1/relay 2(optional)
9 A+/CAN Wiegand data 1/relay 2(optional)
l RJ45-USB single-layer interface
RJ45-USB is combined interface both USB and TCP/IP, NFC-4311 can transmit data by RJ45 and USB. Before
using RJ45-USB, please install USB driver in advance.
l Led indicator
There are 4 LED indicators for NFC-4311, which can add more aesthetic perception and understand promptly the
working status of reader/transmission module, when illuminated their functions are:
Table 4: LED indicator
LED indicator( from top to bottom)
No. Color Function Instruction
1 Yellow RF indicator Blink when transmitting power
2 Green READ indicator/
data transmitted indicator
Blink when successfully identify tag and
transmitting data
3 Green COM indicator Blink when successfully identify tag and
transmitting data
4 Red Power indicator Blink when successfully identify tag and
transmitting data

Shenzhen New Force Communication Technology Co., Ltd
Leading RFID supplier Http: //www.rfid-nfc.com Hotline: 400--602--0005
Page 5
Figure 2 Working status indication
6. Caution
l When installing NFC-4311, please avoid being shield fully by metal or liquid.
l Please pay attention to the waterproofness of NFC-4311 reader, you can cover reader by non-metallic shield
case.
l When NFC-4311 connect to antenna, the cable can’t be up to 10m.
7. Typical Application
l Intelligent transportation management;
l Asset automatically identify, tracking, flow and inventory management;
l Guard patrolling intelligent management;
l Coal well management for personnel positioning, tracking and query;
l Monitoring and positioning management for infant, prisoner, older and psychopaths etc.;
l E-ticket, access control, meeting attendance, electronic record and school management;
l Intelligent management for house and hotel;
l Medical waste/drug and equipment management;
l Intelligent management for channel boat and airport pavement;
l Objects management among buildings or inside buildings.
8. After-sale service
We have one year guarantee and any repair is free of charge within this guarantee time (Based on products model
No. and manufacture date). However, the damage in the event of mechanical impact, over-high voltage, improper
operating, dismantling the reader personally etc. shall be excluded from the guarantee.
Welcome your feedback to us while using the products, we would be dedicated to serve you. If you have any query,
please free to contact sales representatives.
Tel: 86-755-6118 1991
Hot line: 400--602--0005
Fax: 86-755-6118 1977
Email: info@rfid-nfc.com support@rfid-nfc.com
FCC STATEMENT:
1.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.
2. Changes or modifications not expressly approved by the party responsiblefor compliance could void the user’s
authority to operate the equipment
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 designedto provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energyand, if not installed and used in accordance with the instructions,
may cause harmfulinterference 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
-- 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.