4 Port UHF RFID Reader with Four TNC Antenna Ports
This 4 port RFID reader is designed for fixed UHF RFID systems that require multiple external antennas from one reader.
It provides four TNC antenna ports, RF output up to 33 dBm, and tag identification speed of more than 1,000 tags per second. Supported protocols include EPC C1G2 and ISO 18000-6B/C, with additional protocol options available for specific projects.
Ethernet, RS232, RS485, WiFi and Bluetooth provide multiple ways to connect the reader with RFID software and control systems.
Four Antenna Ports for Multiple Reading Zones
Four external RFID antennas can be connected to the same reader, allowing antenna positions to be arranged around different sides of a doorway, conveyor, production station or other fixed identification point.
Unlike an integrated reader with a built-in antenna, the external antenna design gives system integrators more flexibility over antenna type, mounting position and reading-zone layout.
The reader also supports RSSI, tag filtering and antenna status detection, helping with RFID system configuration and tag-data processing.
Technical Specifications
| Parameter | Specification |
| RFID Protocols | EPC C1G2, ISO 18000-6B/C |
| Optional Protocols | GB/T29768-2013, GJB7377.1-2011 |
| Private Protocols | Custom protocol support available |
| GB Frequency | 920–925 MHz / 840–845 MHz |
| FCC Frequency | 902–928 MHz |
| ETSI Frequency | 865–868 MHz |
| Japan Frequency | 916–920 MHz |
| Maximum RF Output | 33 dBm ±1 dBm |
| Power Adjustment | 1 dB steps |
| Receive Sensitivity | -87 dBm |
| RSSI | Supported |
| Occupied Bandwidth | <200 kHz |
| Frequency Stability | ≤±20 ppm |
| Read Distance | 0–20 m |
| Write Distance | 0–10 m |
| Tag Identification Speed | >1,000 tags/s |
| Antenna Ports | 4 × TNC |
| Work Mode | Fixed frequency / frequency hopping |
| Ethernet | 10M/100M adaptive |
| RS232 | 9600 / 19200 / 115200 default / 460800 optional |
| RS485 | Supported |
| Bluetooth | BLE 5.1 |
| WiFi | 2.4 GHz, IEEE 802.11 b/g/n |
| Inputs | 2 optocoupler inputs |
| Outputs | 2 relay outputs |
| Relay Capacity | DC 30V / 1A; AC 125V / 0.75A |
| Power Supply | DC 5–24V |
| Power Consumption | 10W at 33 dBm output |
| Dimensions | 191 × 188 × 25 mm |
| Weight | 1 kg |
| Housing | Alloy |
| Protection Rating | IP55 |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
|
Operating Humidity |
0–95% RH, non-condensing |
RFID read and write distance varies with RF output power, external antenna type, tag performance and installation environment.
RFID Reader Functions
The reader supports several functions useful for multi-antenna RFID deployment:
- Dense reader operation
- Tag RSSI reporting
- Tag filtering
- Antenna status / standing-wave detection
- Online firmware upgrade
- Fixed-frequency and frequency-hopping operation
- External input and relay output control
These functions allow the reader to be configured for different identification zones without requiring every RFID event to be handled only by application software.
Typical Applications
- Warehouse & Logistics
Multiple antennas can be positioned around receiving points, loading areas or warehouse checkpoints to identify tagged pallets, cartons and assets. - Production & Manufacturing
Suitable for fixed RFID stations on production lines or material-transfer points where tags need to be identified automatically. - Asset & Equipment Tracking
External antenna positioning allows RFID reading zones to be adapted to equipment entrances, storage areas or controlled asset movement points. - Vehicle & Gate Management
Antennas can be positioned according to the lane or gate structure for UHF vehicle-tag identification.
Need a 4 Port RFID Reader for Your RFID System?
Share your RFID tag, required reading zones, antenna locations and communication interface. We can help evaluate the reader and external antenna configuration for your installation.
Frequently Asked Question
The top questions about 4 port RFID reader
The reader provides four TNC antenna ports and can connect up to four compatible external UHF RFID antennas.
Yes. External antennas can be positioned at different locations according to the required RFID reading-zone layout.
The specified identification rate is more than 1,000 tags per second under suitable operating conditions.
Maximum RF output is 33 dBm ±1 dBm, with power adjustable in 1 dB steps.
Yes. It supports 2.4 GHz WiFi 802.11 b/g/n and BLE 5.1, in addition to Ethernet, RS232 and RS485.
Standard support includes EPC C1G2 and ISO 18000-6B/C. GB/T29768-2013 and GJB7377.1-2011 are optional, and private protocol customization is also available.
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