SIEMENS S30810-Q2191-C-8 Subscriber Line Module

Description

SIEMENS S30810-Q2191-C-8 Subscriber Line Module

Product Dimensions：

The Siemens S30810-Q2191-C-8 (commonly known by its module name SLMA8 / SLMA) is an 8-port subscriber line module for analog extensions. It is engineered for use in Siemens enterprise PABX and unified communication platforms, primarily the HiPath 3000 and HiPath 4000 / Hicom telecommunication systems.

Siemens HiPath System Line Module. 来源：eBay

Product Detailed Description

The S30810-Q2191-C-8 module provides 8 analog interface channels (a/b lines) to connect standard analog peripheral devices—such as plain old telephone service (POTS) phones, fax machines, answering devices, and modem connections—to the central PBX switching rack. It converts digital voice/control signals from the system backplane into standard analog signals and provides subscriber line feeding, ringing voltage generation, and signaling detection.

Technical Parameters

Product Advantages

• High Reliability: Built to telecom-grade standards, ensuring high mean time between failures (MTBF) and stable 24/7 continuous operation.
• Full BORSCHT Capability: Handles line feeding, ringing signal injection, impedance matching, and surge suppression onboard for seamless analog device integration.
• Cost-Effective System Expansion: Allows enterprises to preserve existing analog infrastructure (fax machines, emergency desk phones, door stations) without requiring an upgrade to full IP endpoints.
• Hot-Swappable: Supports maintenance and module replacement within compatible Siemens subracks without forcing a complete system restart.

Important Considerations & Precautions

• Electrostatic Discharge (ESD): The card contains sensitive CMOS components. Always wear an anti-static grounding wrist strap when installing, removing, or handling the module.
• Power Down / Slot Guidelines: Ensure the subrack slot assignment is properly configured in the system software (e.g., HiPath Manager) before hot-swapping or adding the module.
• Line Surge Protection: While onboard overvoltage protection is included, external trunk/extension wiring leaving the building footprint requires dedicated primary lightning protection blocks.
• Firmware / Revision Match: Verify that the hardware revision suffix (C-8) matches your PBX backplane and main processor software version requirements.

Product Applications

• Enterprise Telephony Infrastructure: Connecting standard analog office phones and conference units to central Siemens HiPath PBX systems.
• Legacy Peripheral Integration: Hooking up analogue fax machines, multi-function printers (MFPs), and dial-up modems.
• Emergency & Hospitality Communications: Powering analog hotline phones, elevator emergency lines, door intercom systems, and hotel guest room telephones where IP deployment is unnecessary or cost-prohibitive.

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