Chainway UR4 is an industrial 4-port reader operating on 865-868 MHz / 920-925 MHz / 902-928 MHz. Starting at $600. Look closely at how Nextwaves can bypass middleware costs.
Technical verdict
Do not evaluate UR4 by list price alone. Its strongest fit is a project that already uses RS-232, RJ45, PoE (optional), has time for RF tuning, and accepts extra middleware work. If the engineering team needs open APIs, realtime data, and faster edge-to-cloud deployment, Nextwaves NR155 is the stronger replacement path to evaluate.
Initial cost
$600 before deployment accessoriesPublished throughput
1,300 tags/secondIntegration surface
RS-232, RJ45, PoE (optional)Physical data
164 x 164 x 39 mm; 0.7 kg; IP: IP53Published specs
Ugboro
Usoro
Njiko
Ntụle IP
Akụkụ
Ibu
Ike ọkọnọ
Ọnụego Ịgụ
Ọnụahịa Atụmatụ
Deployment review
This summary is based on public specifications and does not replace an on-site RF survey.
Deployment review
Fixed UHF RFID projects that already use RS-232, RJ45, PoE (optional) and have time for RF tuning.
Do not compare device price only; total cost depends on accessories, software, and integration.
IP53, PoE (optional), DC, 164 x 164 x 39 mm, and 0.7 kg must match the site layout.
Plan for middleware, SDK work, duplicate filtering, and business-event mapping.
Alternative architecture
Chainway UR4 bụ ngwaọrụ RFID nke ụlọ ọrụ. Ọ na-arụ ọrụ n'ime oke 865-868 MHz / 920-925 MHz / 902-928 MHz ma na-akwado ụkpụrụ EPC Global UHF C1 Gen 2, ISO 18000-6C, na-eme ka e jiri ya mee ihe n'ọtụtụ ngwa ngwa ngwa ngwa ụlọ ọrụ.
Site na IP rating nke IP53, ọ na-enye nchebe megide ọnọdụ gburugburu ebe obibi dị na ụlọ nkwakọba ihe ma ọ bụ ụlọ azụmaahịa. Onye na-agụ akwụkwọ na-eji PoE (optional), DC maka arụmọrụ na-aga n'ihu, ebe ọnụego ịgụ ya kachasị elu na 1,300+.
Na ntinye nke oge a, njikọ netwọk bụ ihe mgbochi kachasị mkpa. Ihe nlereanya a na-enye nhọrọ RS-232, RJ45, PoE (optional) maka ịnyefe data azụ na sistemụ etiti.
Otú ọ dị, nnukwu ihe mgbochi na ngwaike Chainway nketa bụ nnukwu ntụkwasị obi na SDKs nwe (dị ka LLRP) ma ọ bụ dị oké ọnụ ahịa nke atọ IoT middleware iji hazie data tagi raw ka ọ bụrụ ọgụgụ isi azụmahịa bara uru.
Ọ bụrụ na ndị otu injinia gị na-enyocha Chainway UR4, Nextwaves NR155 na-enye ihe owuwu igwe ojii dị elu. Usoro nketa na-akpata nnukwu mmefu isi obodo site na mkpọchi onye na-ere ahịa na sistemụ ngwanrọ nke onwe.
Nextwaves na-ewepụ ihe mgbochi a kpamkpam site n'inye ọkọlọtọ MQTT REST API ozugbo na ngwaọrụ ahụ. Ndị mmepe ngwanrọ gị nwere ike itinye ịgụ akara ozugbo n'ime azụ ERP ma ọ bụ WMS omenala gị n'ime ụbọchị kama ọnwa, na-agafe kpamkpam ụgwọ ikike middleware na-eme ugboro ugboro.
Alternative architecture
Cloud-native MQTT/REST APIs arụnyere. Ọ dịghị SDKs nwe, ọ dịghị ikike middleware. Jikọọ ozugbo na ERP ma ọ bụ WMS gị n'ime ụbọchị.
View Nextwaves NR155
Ọdụ ụgbọ mmiri Antenna
4 x RP-TNC ỌdụỌsọ Ịgụ
Ruo 400 tags/nke abụọIke mmepụta
0–33 dBm (1dB nzọụkwụ)Usoro Netwọk
MQTT / MQTTSFAQ
These answers help purchasing and engineering teams review cost, integration, and deployment risk.
The Chainway UR4 is a 4-port, fixed RFID edge device. Based on Impinj E710 / R2000 chips, it supports EPC Global UHF C1 Gen 2, ISO 18000-6C over the 865-868 MHz / 920-925 MHz / 902-928 MHz frequency bands for high-speed tracking.
Hardware costs begin around $600. Keep in mind that a full deployment budget must account for up to 4 antennas, low-loss cables, integration middleware, and setting up the PoE (optional), DC infrastructure.
Nextwaves provides embedded REST API and MQTT endpoints natively on the device. This allows web and software developers to map tag reads directly to REST payloads, bypassing complex legacy C# or Java middleware servers.
The unit weighs approximately 0.7 kg and measures 164 x 164 x 39 mm. An IP53 structural rating provides reasonable protection against dust and water spray, suitable for loading docks and covered warehouses.
Network integration relies on RS-232, RJ45, PoE (optional) ports. RS-232 serial is maintained for legacy programmable logic controller (PLC) connections, while RJ45 manages modern IP traffic.
Hardware installation uses standard mounting hole layouts. However, optimizing RF performance requires trained engineers to correctly map the 4 distinct antenna channels to prevent signal overlap and optimize tag orientation capture.
Under optimal test conditions, the internally integrated chip logic is rated to process up to 1,300+ tag reads per second. Real-world speeds vary significantly based on Gen2 memory mapping.
In a traditional setup, the RS-232, RJ45, PoE (optional) interfaces transmit binary or low-level hex data. This requires an external application to filter out duplicate tag events before sending the data to cloud storage.
The standard warranty covers physical malfunctions for one year. Extended engineering support is recommended for teams unfamiliar with low-level UHF Gen2 memory protocols.
You are required to supply external antennas (circular or linear). Selecting the exact gain and polarization over the 865-868 MHz / 920-925 MHz / 902-928 MHz band determines the actual width of your read portal.
