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PRODUCTS/AetherNexus™/NX-GW/C-SMGW

Interface diagram — not a photograph of the product. A product image and measured dimensions are pending.

C-SMGWSMART METER GATEWAY

Detachable LTE Smart Meter Gateway, type C

The AetherNexus C-SMGW is a detachable type-C LTE gateway module. Fitted to an AMIGO meter it works in SMGW-C mode and manages metering data for up to 65 meters over the meter's 20-pin interface, RS-485 and SUN; fitted to a type-A smart meter gateway it works as a removable LTE modem. The values on this page are requirements of the KEPCO purchase specification that the product is designed to.

SMGW type CUp to 65 metersLTE Cat.M1 or higherPlug-in module

SPECIFICATIONS

Product typeDetachable LTE smart meter gateway type C

HostsAMIGO meter (SMGW-C mode) or type-A smart meter gateway (removable LTE modem mode)

MetersUp to 65: the host meter, SUN and RS-485

Host interface20-pin removable-modem interface

LTEOperator LTE bands, Cat.M1 or higher · 23 ± 2 dBm maximum · AES-128

Power supplyDC 3.3 V ± 5 % from the host · 3 W or less · 5 s or more of operation after a power failure

AntennaExternal dipole antenna on a 500 mm cable with an SMA female connector

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

Ingress protectionIP51, inside the meter installation

HousingFlame-retardant polycarbonate, UL94 V-0

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Source: KEPCO purchase specification GS-5895-0069 for type-C (LTE) smart meter gateways, revision draft of August 2025. The values are specification requirements, not test, certification or type-approval results. The English datasheet, catalogue and user manual are available on request.

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