PRODUCTS

ET7241 2.45Ghz Active RFID GPRS Reader

Active 2.45Ghz RFID; Direction: Omnidirectional/directional; Reading Distance: 0 - 80 meters; Support GPRS/GSM/SMS; Built-in lithium battery; Support FAM all alarm function; Support RSSI for Locating;

  • Function
  • Specification
  • Typic application

1. General

Radio Frequency Identification RFID is the acronym for radio frequency identification, commonly known as RFID. Radio Frequency Identification RFID is a non-touch automatic identification technology, radio frequency signal through the automatic target recognition and access to relevant data, to identify without human intervention, it can work in a variety of harsh environments. RFID technology can identify the high-speed moving objects, also identify multiple tags, the operation is quickly and conveniently.

Shenzhen eTel technologies co., ltd. according to market demand of the wireless internet of things RFID, Combine with GPRS FAM function, develop ET7241 RFID GPRS Reader, it able to real time send RFID TAG information via the GPRS network to data center. Data center platform will receive the data and save into database, users can just use browser to access data and view all information.

ET7241RFID Reader is mainly used in schools, residential security, plant access, government access control, automotive systems, ET7241 RFID Reader also support FAM feature, which supports 3 DI, 1 DO, 1 AI, 2 TE ports, it can be connected to different sensors to cooperate with RFID function.

2. Feature

Industrial Design

ET7241 RFID Reader is industrial design which built-in watchdog chipset to ensure the system work continuously, Watchdog monitoring the GPRS module and CPU all the time, if the GPRS module or CPU does not response for long time, Reader will restart automatically. Reader is very suitable for long-term continuous work applications. 

Main and backup data center

ET7241 RFID Reader support main and backup data center, user can set both main data center IP address or domain name, when Reader fail to connect with main data center, it will try to connect backup data center automatically. 

RFID card reader/writer distance adjustable, RSSI Location

Reader built-in signal attenuation, adjustable read/write distance cards, combined with RSSI function, the reading distance can be controlled to within 3 meter, and support locating position.

TAG buffer

ET7241 RFID Reader can save the TAG card information in the NVRAM buffer, if the GPRS network is abnormal, the reader will save data in the NVRAM, when the network returns to normal, the data will be sent immediately. NVRAM has feature for save data even power lose, so even reader power lose, Tag data will still save in the NVRAM. Reader buffer can save max 5000 TAG information.

TAG Packet Series Number

All TAG data packet include serial number, Data center need to reply a corresponding serial number of the ACK packet after received TAG packet, readers receive the ACK packet, then delete the TAG information from the buffer, otherwise it will resend TAG packet (as specified time interval and frequency). This feature is based on the GPRS network feature, to ensure TAG data doesn't lose.

Embedded Li-battery and Temperature sensor

ET7241 RFID Reader built-in 1000mA Lithium battery, it can work for 3 hours if the external power supply cut off. The built-in temperature sensor can real-time monitoring of environment temperature, and the outside TE port can be extended to the user device surface to monitoring equipment temperature.

SMS Remote Restart

ET7241RFID reader supports SMS remote control, users can query the device working status through SMS, also user can reboot reader through SMS.

DO port programmable output

RFID Reader DO (digital output) port supports programmable output, according to the requirement of user site, the level of output level, switching time, times would be programmable.

Zone type

DI ports support zone type setting which can be set to as common zone, delay zone, intelligent zone, emergency zone, home zone, according to the user site conditions and sensor type, set the correct zone type to prevent false alarm, missing alarm.

SMS Backup

Communication with the RFID data center through GPRS; if GPRS disconnect, FAM can send the TAG information via SMS for backup tunnel.

SMS password, RFID TAG, Keypad password, Fingerprint Authentication, Timing Arm/Disarm

Reader support multiple Arm/Disarm function, it can perform a specified time every day to Arm/Disarm; FAM also support any mobile phone number via a password to Arm/Disarm; RFID TAG way to Arm/Disarm; Fingerprint authentication to Arm/disarm. After the instruction is executed successfully, FAM will send the Arm/Disarm information to the administrator phone as well.

Micro SD slot (TF Slot)

Reader provide Micro SD Slot (slot TF slot) that is used to store camera photo/alarm log/arm disarm log and RFID TAG data. it can be sending TAG data to the data center, while stored in the TF card.

USSD calls fee inquiry, AGPS base station location

Reader supports USSD way to check SIM card calls fee and inquiries AGPS base station positioning. through AT commands, we can check SIM card calls fee, and recharger SIM card on time to prevent arrears that affect the normal operation; also, we can use AT command to check base station code, it is able to locate the position of the device.

LED indicator to display Arm and Disarm

Reader DO port can be connected to 12V dual color LED lights, and displays the current Arm and Disarm status. Red indicates the FAM is ARM status, Green indicates FAM is Disarm status.

TAG link to DO output

Reader support TAG link to DO port output function, with the DO programming output function, we can connect a LED and buzzer on DO port, and then we would know TAG result according to the LED light and buzzer.

Clock synchronization

Reader support clock synchronization; it can read the clock from SMS or get clock from management platform by GPRS.

Graphical configuration software

ET7241 RFID Reader provides full graphical software configuration, easy to use, and supports import or export configuration file; so users just simply click a few icons to quickly setup RFID system.


3. Specifications

Basic 

GPRS Dual Bands 900Mhz/ 1800Mhz

GPRS Quad Bands 850/900/1800/1900Mhz (Optional)

CDMA 800mhz (Optional)

Dual SIM Slot (Optional)

TAG data buffer

Smart power management

Automatic power supply detection

Li-Battery inside (Optional)

Support 2 DI pulse input (Optional)

Support GPS (Optional)

Support camera to Photograph

Support alarm link to photograph

Clock synchronization

DO port programmable output

DI port zone type setting

DO port programmable alarm link

Support LED screen

SMS remote control RTU/PLC

Arm/disarm by alias name

SMS password, RFID TAG, keyboard passwords, timing to Arm/Disarm 

Arm and Disarm LED Light

Micro SD slot to store photos and alarm log

USSD calls fee inquiry 

AGPS base station location

TAG linkage DO port output

SMS backup tunnel

PC based configuration tool

Real time OS, steady system

Watch dog design, ensure reader alive

Low consumption, industrial design

Fully type approved with ETSI GSM Phase 2+ standard

Enhanced EMC/EMI design

RFID

Frequency: 2.4GHz--2.5GHz ISM

Identification Directionality: Non-directional or directional(antenna dependent)

Antenna: Connect 1 antenna through SMA

Max RF Power: 0dBm

RF Power Range: -30dBm-0dBm (adjustable through software)

Receiving Sensitivity: -90dBm

Operating Method: Fixed frequency (set via software)

Modulation: GFSK

Identify Tag Time: Less than 1ms when identify single tag.

Reading/Writing Tag Time: Less than 0.5ms every 9 bytes when reading, 1ms every 13bytes when writing

Read/write card distance: adjustable from 0 to 200 meters (depending on antenna); Note: Combined RSSI function, reading distance can be controlled within 3 meter

Anti-collision, can identify 500pcs of tags in the same time

Support polling mode, search TAG ID, and send to the data center

Communication rate: 250Kbps, 1Mbps, 2Mbps adjustable

Low-power transmit, maximum 0dbm, transmit power is less than 2 mW usually

TAG signal strength detection, RSSI feature that detects tag signal strength, locating TAG position

Anti-interference function, reader using channel isolation technology, multiple devices work together

GPRS

Industrial class GPRS wireless module

Embedded PPP, TCP/IP Stack

Support main and backup service center

Support TCP/IP and UDP/IP

Supports DNS and dynamic data service center IP address 

Support continually or sleep work mode

Support Carrier public & special APN

Remote monitoring and control

Interface

GPRS Antenna: 50Ω/SMA Female;

RFID Antenna: 50Ω/SMA Female or embedded antenna

SIM/R-UIM: 3V

Configuration: RS232

Data Communication: RS232 (Ethernet, RS485 Optional)

DI: 3 Ports (0-3V False, 3-36V True)

AI: 1 Port

DO: 1 Port

TE: 2 Ports

Note: DI = Digital Input

AI = Analog Input

DO = Digital Output

Power

Voltage: DC 12V -18VDC

Consumption: 150mA@ DC12V

Others

Dimension: 116mmx155mmx26mm

Weight: 370g

Operation temperature: -45~+75ºC 

Storage temperature: -55~+85ºC 

Relative humidity: 95% (no-condensing) 


Applications

ET7241 RFID Reader products can be used for many industrial applications, such as:

Auto-identification and tracking of important goods in logistics;

Edu to Home in students management;

Attendance, access control, convention registration etc;

Intelligent management in traffic police, patrolman etc;

Orientation, tracking and checking people in coal mine etc.

School access system

Topic diagram

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