
Keymile 37900218 SUPC4 R1D 48-port POTS subscriber interface module for the MileGate 2500 access platform.
The Keymile 37900218 is a SUPC4 R1D subscriber interface module for the Keymile MileGate 2500 series access and multi-service access node (MSAN) platform. It provides 48 POTS (plain old telephone service) subscriber ports, connecting analogue voice lines back into the MileGate access node for onward transport across the operator’s network.
As a subscriber-side line card, it installs into a MileGate 2500 chassis slot alongside other access and uplink modules, forming part of the platform’s flexible mix of subscriber interface types used in copper access and MSAN deployments.
High port-density POTS cards like the SUPC4 R1D are used by network operators to consolidate large numbers of analogue subscriber lines onto a compact access platform, supporting both traditional PSTN services and next-generation access network migration.
Tech-Star (UK-based, shipped worldwide) stocks new and refurbished Keymile access equipment. Enquire for current stock and lead time on the 37900218.

| Platform | Keymile MileGate 2500 |
|---|---|
| Manufacturer | Keymile |

| Platform | Keymile MileGate 2500 |
|---|---|
| Manufacturer | Keymile |
| Key Features | 48-port POTS subscriber interface; High-density analogue line card; MileGate 2500 MSAN compatibility |
|---|---|
| Applications | Analogue subscriber line access; Copper access network consolidation; MSAN and PSTN service delivery |
| Compatibility | Keymile MileGate 2500 series access platform; MileGate MSAN chassis slots |
| Specifications | SUPC4 R1D subscriber interface card; 48x POTS ports; MileGate 2500 line card form factor |
| Platform | Keymile MileGate 2500 |
| Manufacturer | Keymile |
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