21030523121099 Huawei Huawei eSpace PBX Expansion Card

21030523121099 Huawei Huawei eSpace PBX Expansion Card Image 1

Huawei 21030523121099 SLT1 single-line telephone interface board.

The Huawei 21030523121099 is an SLT1 (Single Line Telephone) interface board designed to provide analogue telephone connectivity within Huawei telecommunications systems. This card enables the connection of standard analogue telephones, fax machines, and other POTS (Plain Old Telephone Service) devices to digital switching platforms.

The SLT1 board is typically deployed in Huawei eSpace or legacy Huawei PBX and unified communications systems, serving as the interface between analogue endpoints and the core digital infrastructure. It is commonly used in enterprise telephony environments where a mix of digital and analogue devices must coexist.

As a legacy interface card, the SLT1 remains relevant for organisations maintaining existing Huawei telephony infrastructure or requiring analogue line support for fax machines, emergency phones, or lift intercoms within modern unified communications deployments.

Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

From the same manufacturer

Key FeaturesSingle-line analogue interface; POTS device connectivity; Hot-swappable design
ApplicationsEnterprise PBX telephony; Analogue fax machine connectivity; Legacy device integration
CompatibilityHuawei eSpace U1900 series; Huawei eSpace U1980/U1981
SpecificationsSingle analogue line interface; FXS port type
PlatformHuawei eSpace
ManufacturerHuawei

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