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UHF RFID 4-Port Fixed Reader IDTS-IHZ4N (N704)UHF RFID 4-Port Fixed Reader IDTS-IHZ4N (N704), view 2
Model IDTS-IHZ4NIdentium

UHF RFID 4-Port Fixed Reader IDTS-IHZ4N (N704)

A four-port fixed UHF RFID reader for dock doors, conveyors and production lines, built on the N704 module in the IHZ4 housing. Its 865–868 MHz version reads ISO 18000-6C and 6B tags at over 400 a second and connects over Ethernet, RS-232 or RS-485.

Price on request

Minimum order: 1 piece · the final price for your quantity is confirmed in the quote

View datasheet PDF · 224 KB
  • 7-day replacement · 1-year warranty against manufacturing defects
  • Blue Dart next-day delivery

Key features

  • N704 third-generation UHF RFID reader chip (4-port module)
  • 4 × SMA ports, > 30 dB isolation, up to 33 dBm, −85 dBm sensitivity
  • 865–868 MHz India (ETSI-band) version; up to 20 m read in the maker's 9 dBi antenna test
  • Read rate > 400 tags/s; a 600-tag group identified within 3 s (multi-tag)
  • Ethernet 10/100, RS-232 and RS-485; Wiegand on request
  • 2 opto-isolated inputs and 2 relay outputs for sensors, lamps and gates
Chip
N704 third-generation UHF RFID reader chip (4-port module)
Protocol
ISO 18000-6C (EPC C1 Gen2), ISO 18000-6B
Frequency
865–868 MHz (India/ETSI-band version); 902–928 MHz (US-band version)
Read range
Up to 20 m (EPC tags; maker's test with a 9 dBi linear antenna, cable loss < 1 dB, no interference); depends on antenna, tag and site

Overview

What is inside the IDTS-IHZ4N 4-port UHF RFID reader

The IDTS-IHZ4N is the N704 version of our four-port fixed reader. Outside, it is the IHZ4's aluminium, anti-shock housing with four SMA antenna ports. Inside is an N704 third-generation reader module with four ports, plus an interface board for Ethernet, serial and I/O. Tags can be read and written over ISO 18000-6C (EPC Gen2) and ISO 18000-6B.

Planning read points with four antennas

Four ports suit places that tags pass in a predictable way: a dock door with an antenna on each side, a conveyor, a production-line station or a file-room door. Aim each antenna at its own zone. The port-to-port isolation of more than 30 dB limits leakage between the reader's antenna ports, while antenna placement and output power keep the zones apart. Dense-reader mode helps where several readers share a hall, and the multi-tag rate suits a pallet of cartons passing a dock door.

The listed range is the maker's test figure; a site survey with your own tags decides the antenna layout. When commissioning, use antenna-connection detection to confirm each cable before trays are closed. Pick the zone antennas from our RFID antenna range.

Connecting it to your network or controller

  • Ethernet 10/100: for a server, WMS or middleware on the site LAN.
  • RS-232: for a PC or controller close to the reader.
  • RS-485: for PLCs and serial networks over long cable runs.
  • Wiegand: only if ordered, as a customisation for access or attendance controllers.

Inputs and relays at the read point

The two opto-isolated inputs can be triggered by a sensor such as a photo-eye, loop detector or door switch (check the sensor's output type against the input requirements when you order), so your software can start reading when something arrives and stop once it has passed. Combined with output power trimmed to the doorway, this keeps tags in the next bay out of your data. The two relay outputs can switch a lamp or hooter, or signal a barrier controller; their ratings are in the specs table, and heavier loads need a contactor.

IHZ4N or IHZ4: which to choose

IDTS-IHZ4N

N704 engine; Ethernet, RS-232 and RS-485; two inputs and two relays; Wiegand only as a customisation. Choose it when Ethernet or serial links and two I/O pairs cover the read point.

IDTS-IHZ4

Impinj E710 engine in the same housing. It adds USB for bench set-up, Wiegand as standard, three inputs and three relays, and a higher listed read rate and read range. Choose the IHZ4 when you need any of those.

Both are listed with our other 4-port UHF RFID readers.

Typical applications

  • Warehouse dock doors
  • Conveyor lines
  • Production lines
  • Library and file rooms
  • Attendance and access gates
  • Apparel stock rooms
  • Vehicle and asset gates

Specifications

Datasheet (PDF)
ModelIDTS-IHZ4N
ChipN704 third-generation UHF RFID reader chip (4-port module)
ProtocolISO 18000-6C (EPC C1 Gen2), ISO 18000-6B
Frequency865–868 MHz (India/ETSI-band version); 902–928 MHz (US-band version)
Output power0–33 dBm (±1 dB), adjustable in 1 dB steps
Receive sensitivity−85 dBm
Port isolation> 30 dB, port to port
ModulationDSB-ASK, PR-ASK
DecodingFM0, Miller 2/4/8
Data rate40 / 160 / 320 / 400 kbps (baseband)
Work modeFixed frequency or frequency hopping
Read speed> 400 tags/s
Multi-tag600 tags in 3 s (anti-collision)
Read rangeUp to 20 m (EPC tags; maker's test with a 9 dBi linear antenna, cable loss < 1 dB, no interference); depends on antenna, tag and site
Write rangeUp to 10 m (same test conditions); depends on antenna, tag and site
Ports4 × SMA antenna ports
InterfaceEthernet 10/100 Mbps (TCP), RS-232 (9,600–460,800 baud, default 115,200), RS-485; Wiegand on request (customisation)
I/O2 opto-isolated inputs, 2 relay outputs (DC 30 V / 1 A, AC 125 V / 0.75 A)
FunctionsRSSI, tag data filtering, dense-reader mode (DRM), antenna-connection detection, temperature/humidity protection, auto-idle power saving
Power inputDC 5–24 V, from a supply of at least 30 W; recommended adapter 12 V / 2 A (100–240 V AC input)
Power consumption9 W (reader module at +33 dBm)
SDKSDK packages for several development languages, plus demo software
HousingAluminium, anti-shock design
IndicatorsPower and status
Dimensions170 × 120 × 25 mm
Operating temperature−20 °C to +70 °C
Storage temperature−40 °C to +85 °C
Humidity10–95% RH, non-condensing

Frequently asked questions

Does the IDTS-IHZ4N work in India's UHF RFID band?
Yes, in its ETSI-band version. That build covers 865–868 MHz, which India keeps licence-exempt for UHF RFID under G.S.R. 853(E), 2021. A 902–928 MHz (US-band) build is also listed for US-band projects, so mention the destination when you ask for a quote. Order tags tuned to the same band as the reader, because a tag built for the US band usually loses range at India's frequencies.
What read range will I get from the IDTS-IHZ4N?
The maker quotes up to 20 m for reading and 10 m for writing, measured with a 9 dBi linear antenna, under 1 dB of cable loss and in an interference-free environment. Small labels, tags on metal or liquids, long cable runs and busy RF surroundings all reduce range, so test with your own tags and antennas at the actual read point.
Can it send Wiegand to an access or attendance controller?
Not as standard. Wiegand output is available on request as a customisation, so mention it in your enquiry together with the controller model and the Wiegand format it expects. Without it, tag reads reach your software over the network or serial links instead.
How do I integrate it with my own software?
Standardised SDK packages for several development languages and demo software are provided, so your developers can build tag reads into your own application. For carrying tag reads into ERP or WMS software, see our RFID software and middleware guide.
How is the IDTS-IHZ4N different from the IHZ4?
Both use the same 170 × 120 × 25 mm housing; the difference is the electronics. The IHZ4 runs on an Impinj E710 and is listed at up to 1,000 tags/s and 30 m read range; the IDTS-IHZ4N runs on the N704 module and is listed at more than 400 tags/s and up to 20 m read range in the maker's test.

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