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Rectangular metal box with DIN-rail clips, two RJ45 ports, DB9 serial port, dual SIM slots, antenna connectors, matte grey finish

ORing

ORing IMG-4312D+-D4G_US Industrial 4G LTE Gateway Wi-Fi RS-232/422/485 device server

SKU CH-Z69Z-KBSA3

Industrial 4G LTE gateway with Wi-Fi, dual SIM, serial and dual Ethernet for remote device connectivity

  • Wireless standards"Cellular: GSM / GPRS/ EGPRS/ EDGE / WCDMA / HSDPA / HSUPA /
  • Supported standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3x
  • Network ports2 10/100Base-T(X) RJ45
  • Radio bands"LTE: FDD: 1900(B2)/1700(B4)/850(B5)/700(B12)/700(B13)/700(B
  • Temperature rangeOperating temperature -25 to 70? (-13 to 158?) Storage tempe
  • Humidity range5% to 95% Non-condensing
  • LTE Cat. 4 cellular with AT&T, Verizon, FirstNet certification
  • Dual SIM redundancy keeps the link alive if one carrier fails
  • Industrial temperature range -25 to 75°C for harsh sites
  • RS-232/422/485 serial plus dual 10/100 Ethernet ports
  • VPN support via OpenVPN, PPTP, IPSec for secure tunnels

Industrial 4G LTE Gateway with Serial and Wi-Fi

The IMG-4312D+-D4G_US is a rugged device server built for industrial IoT and M2M deployments. It combines LTE Cat 4 cellular, dual Ethernet, Wi-Fi, and an RS-232/422/485 serial port to connect legacy equipment and sensors to cloud platforms. Dual SIM redundancy and VPN support suit remote sites where wired broadband is unavailable or unreliable. DIN-rail mounting and a wide temperature range fit cabinet and vehicle installations.

Cellular and Ethernet limits

LTE operates on FDD bands 2, 4, 5, 12, 13, 14, 66, and 71 with UMTS fallback on 1900, 1700, and 850 MHz. Wi-Fi covers 2.412 to 2.462 GHz across 11 channels under FCC rules. The two RJ45 ports negotiate at 10/100 Mbps only, so throughput caps at Fast Ethernet speeds. VPN encryption runs over these links using OpenVPN, PPTP, or IPSec for secured tunnels.

Build and connector implications

The unit measures 1.77 by 3.17 by 3.74 inches and weighs 13.93 ounces, designed for DIN-rail mounting inside enclosures. Operating temperature spans -25 to 70°C with storage down to -40°C and humidity up to 95% non-condensing. A DB9 connector carries the serial interface, while dual SIM slots sit behind a panel for carrier failover. CE and FCC certification plus AT&T, Verizon, and FirstNet approvals confirm regulatory compliance for North American deployments.

How it compares

Measured against everything we stock in Serial & USB Device Servers, at today’s prices. Recalculated every night.

Price $855.99
Pricier than about 76% of the 168 comparable items (median $335.99).

Specifications

Connectivity
Wireless standards"Cellular: GSM / GPRS/ EGPRS/ EDGE / WCDMA / HSDPA / HSUPA /LTE
WIFI: IEEE802.11b/g/n
"
Supported standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3x
Radio bands"LTE:
FDD: 1900(B2)/1700(B4)/850(B5)/700(B12)/700(B13)/700(B14)/1700(B66)/600(B71) MHz
UMTS/HSDPA/HSUPA/HSPA+: 1900/1700/850 MHz
WIFI:
America / FCC: 2.412 to 2.462 GHz (11 channels )"
Ports & slots
Network ports2 10/100Base-T(X) RJ45
Size & build
Product dimensions1.77 × 3.17 × 3.74 in
Product weight13.93 oz
Environment & compliance
Temperature rangeOperating temperature -25 to 70? (-13 to 158?)
Storage temperature -40 to 85? (-40 to 185?)
Humidity range5% to 95% Non-condensing

Questions about this item

How do I choose between the LTE and Wi-Fi versions of the IMG-4312D+-D4G_US?

This single model includes both LTE Cat. 4 and IEEE 802.11b/g/n Wi-Fi, so no separate version choice is needed.

What real-world throughput can I expect from the two 10/100Base-T(X) LAN ports?

Each RJ45 port negotiates at 10 or 100 Mbps full-duplex; actual throughput depends on the cellular link and network load.

Which frequency bands does the LTE modem support for AT&T, Verizon and FirstNet?

FDD bands 2, 4, 5, 12, 13, 14, 66 and 71 at 1900, 1700, 850, 700 and 600 MHz cover all three carriers.

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