UHF RFID for Warehouses, Dock Doors & Portals
Plan RFID for warehouse management: fixed readers and circular antennas at dock doors, conveyor tunnels, handheld cycle counts and on-metal asset tags.
ValenID · valenid.com · sales@valenid.com
FX-110 8-Port Fixed UHF RFID Reader, TCP/IP & RS232, GPIO
Eight-antenna fixed UHF RFID reader with Impinj R2000 chip, 33 dBm output, 700 tags/s peak inventory, RS232 and TCP/IP, plus two inputs and two outputs.
- Eight antenna ports, polled in sequence at a minimum of about 25 ms per port
- Impinj Indy R2000 chip, dual-CPU design, 20–33 dBm output with ±0.2 dB flatness
- Peak inventory 700 tags/s, 1,000-tag buffer and RSSI for every read
- EPC Gen2 / ISO 18000-6C and ISO 18000-6B, switchable
- RS232 and TCP/IP host interfaces plus 2 inputs and 2 outputs (≤ 12 V)
- Antenna ports
- 8
- Frequency
- 865–868 MHz (EU) or 902–928 MHz (US)
- RF output
- 20–33 dBm
- Interfaces
- RS232, TCP/IP, 2 GPI / 2 GPO
- Inventory speed
- 700 tags/s peak
- Power
- 12–18 V DC
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8-Port Fixed UHF RFID Reader, TCP/IP & RS232, GPIO: overview
The FX-110 is an eight-port fixed UHF RFID reader for projects that need many read points from one device: conveyor tunnels, smart cabinets, multi-door dock areas, retail stockrooms and production lines. It polls its antenna ports in sequence with a minimum of about 25 ms per port, so a full pass over all eight antennas takes roughly 200 ms.
The RF section uses an Impinj Indy R2000 chip with a dual-CPU design. Output power is set between 20 and 33 dBm with ±0.2 dB flatness, receive sensitivity is better than –85 dBm, and inventory speed peaks at 700 tags per second. The reader buffers up to 1,000 tags (96-bit EPC) and reports RSSI with each read for filtering or proximity logic. It handles EPC Gen2 (ISO 18000-6C) and ISO 18000-6B tags, switches between the two protocols, and can read or write larger 6B data blocks in a single operation.
Hosts connect over TCP/IP or RS232. An 8-pin GPIO connector provides two polarized inputs for photo-eyes or door sensors and two non-polarized outputs for stack lights, buzzers or PLC inputs, all rated up to 12 V. Temperature is monitored at several points on the board, and output power calibration is held in two backup copies.
Integration notes
Supply 12–18 V DC; standby current is under 70 mA and sleep current under 100 µA. The 200 × 190 × 30.8 mm enclosure is air-cooled and rated for –20 to +55 °C. Order the EU 865–868 MHz or US 902–928 MHz version for the installation country, and add antennas and low-loss cables to the same RFQ.
More features
- EU 865–868 MHz and US 902–928 MHz versions, 12–18 V DC supply
FX-110 specifications
RF & tags
| Reader chip | Impinj Indy R2000, dual-CPU architecture |
|---|---|
| Air protocols | EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C and ISO 18000-6B (switchable) |
| Frequency | 865–868 MHz (EU versions); 902–928 MHz (US versions) |
| Regional frequency plans | FCC (US, Canada); ETSI EN 302 208 with and without LBT; Japan, Korea, Malaysia, Taiwan |
| RF output power | 20–33 dBm |
| Output power flatness | ±0.2 dB |
| Receive sensitivity | < –85 dBm |
| Antenna ports | 8, polled in sequence; minimum about 25 ms per antenna |
| Peak inventory speed | 700 tags/s |
| Tag buffer | 1,000 tags at 96-bit EPC |
| Tag RSSI | Supported |
Interfaces
| Host interfaces | RS232, TCP/IP (Ethernet) |
|---|---|
| GPIO | 2 inputs, 2 outputs, ≤ 12 V (see pin table) |
Electrical
| Supply voltage | 12–18 V DC |
|---|---|
| Standby current | < 70 mA |
| Sleep current | < 100 µA |
Mechanical & environment
| Dimensions | 200 × 190 × 30.8 mm (±5 mm) |
|---|---|
| Weight | 1.4 kg (1.8 kg gross) |
| Cooling | Air cooling |
| Operating temperature | –20 to +55 °C |
| Storage temperature | –20 to +85 °C |
Variant matrix
| SKU | Antenna ports | Band | Host interfaces |
|---|---|---|---|
| FX-110-8P-EU | 8 | 865–868 MHz (ETSI) | RS232, TCP/IP, GPIO |
| FX-110-8P-US | 8 | 902–928 MHz (FCC) | RS232, TCP/IP, GPIO |
GPIO pin definition
| Pin | Function | Electrical notes |
|---|---|---|
| PIN 1 | GPIO 1 input + | Inputs: ≤ 12 V between pins 1–2 and 3–4, polarized, 470 Ω equivalent LED resistance, response ≤ 150 µs |
| PIN 2 | GPIO 1 input − | |
| PIN 3 | GPIO 2 input + | |
| PIN 4 | GPIO 2 input − | |
| PIN 5 | GPIO 4 output | Outputs: ≤ 12 V across pins 5–6 and 7–8, non-polarized, 110 Ω on-resistance, response ≤ 6 ms |
| PIN 6 | GPIO 4 output | |
| PIN 7 | GPIO 3 output | |
| PIN 8 | GPIO 3 output |
Inputs accept up to 12 V and are polarized; outputs switch up to 12 V and are non-polarized.
Specifications can change between production batches. Confirm the current revision with us before placing volume orders.
Ordering options
Quote the SKU that matches your frequency, interface and mounting. Not sure? Send us your controller model and we will pick the variant for you.
| SKU | Configuration | Actions |
|---|---|---|
| FX-110-8P-EU | 8 antenna ports, 865–868 MHz, RS232 + TCP/IP + GPIO, unbranded housing | |
| FX-110-8P-US | 8 antenna ports, 902–928 MHz, RS232 + TCP/IP + GPIO, unbranded housing |
Where the FX-110 is used
- Conveyor tunnel with up to eight antennas reading cartons from several sides
- Two dock doors served by one reader with four antennas per door
- Smart tool or file cabinet with an antenna on each shelf
- Production line logging work-in-progress tags at several stations from one reader
RFID Asset & Tool Tracking
Build an RFID asset tracking system: on-metal, ceramic and tie-on tags matched to each asset, handheld audits, smart cabinets and IP67 HF heads for tooling.
FX-110 FAQ
How many antennas should I connect?
The reader drives up to eight antennas in sequence. Dock doors typically use two to four and tunnels or cabinets use more; each active port adds at least about 25 ms to a full read cycle.
What can the GPIO be used for?
The two inputs accept signals up to 12 V, for example a photo-eye that starts reading when a pallet arrives. The two outputs switch up to 12 V to drive a stack light, buzzer or PLC input.
Does it read ISO 18000-6B tags?
Yes. It reads EPC Gen2 (ISO 18000-6C) and ISO 18000-6B tags and can switch between the two protocols.
How does it connect to the host system?
Over TCP/IP (Ethernet) or RS232. The reader can hold up to 1,000 tags with 96-bit EPC in its buffer for the host to collect.
Is there a 4-port version?
Yes. The FX-120 has the same RF performance, interfaces and 200 × 190 × 30.8 mm footprint with four antenna ports.
Before you buy
Related buyer guides
UHF RFID Frequency by Country: 902–928 MHz vs 865–868 MHz and Other Bands
Compare UHF RFID reader bands by country, including US, EU, UK, China, India and Japan. Understand ERP, EIRP, channel conditions and radio approvals.
How to Wire a Long-Range UHF Reader to an Access Controller or Barrier
Wire a UHF reader's D0, D1 and ground to your controller, match 26/34-bit Wiegand, size 12 V power and trigger the barrier by relay. Diagrams included.
Does RFID Work on Metal? How to Choose On-Metal Tags
Yes, RFID works on metal with tags built for it. See why metal detunes standard tags, compare ABS, PCB, ceramic and label tags, and test read range properly.
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