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AetherNexus A-SMGW, model ANG300-A — photograph of a sample

Photograph of an ANG300-A sample. Confirm the rating plate of the delivered unit.

ANG300-ASMART METER GATEWAY

A-SMGW Smart Meter Gateway, type A

The AetherNexus A-SMGW (model ANG300-A) is a type-A smart meter gateway for KEPCO's AMI, installed in the transformer zone at pole-mounted or pad-mounted transformers. It reads, stores and manages data from up to 200 meters over built-in CAN, RS-485 and SUN interfaces and plug-in modems, and forwards it upstream over an LTE modem or a wired IP link. In the field it is installed in an outdoor device box. The values on this page are requirements of the KEPCO purchase specification that the product is designed to.

SMGW type AUp to 200 metersCAN · RS-485 · SUN · PLCLTE or wired IP

SPECIFICATIONS

Product typeSmart meter gateway type A for AMI

ModelANG300-A

MetersUp to 200 in total

Built-in interfacesCAN · RS-485 · SUN

Modem slotsTwo 20-pin slots: one WAN modem (LTE) and one LMN modem (PLC or SUN)

PlatformARM A-class processor · RAM 1 GB or more · flash 8 GB or more · embedded Linux

Power supplyAC 86 V to 264 V, 60 Hz · battery back-up for 30 s or more

Ambient conditions−40 °C to +75 °C · altitude up to 1,500 m · humidity 10 % to 90 %

Ingress protectionIP51 body, as marked on the sample nameplate · outdoor device box IP56 or better

Dimensions from the 3D model80.0 × 140.0 × 80.0 mm (W × H × D), mounting lugs included

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Source: KEPCO purchase specification GS-5895-0071 for type-A smart meter gateways (July 2025), the supplied 3D model and the sample nameplate. The values are specification requirements, not test, certification or type-approval results. The English datasheet, catalogue and user manual are available on request.

Dimensions

AetherNexus A-SMGW — dimension drawing — Drawing derived from the supplied 3D model, in millimetres: 80.0 × 140.0 × 80.0 mm (W × H × D), mounting lugs included. Not a mounting-hole or tolerance drawing.

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