Cisco

Cisco WS-X6148-21AF | 48x 10/100 (RJ-21) | 802.3af PoE | Classic line card

Cisco WS-X6148-21AF | 48x 10/100 (RJ-21) | 802.3af PoE | Classic line card

SKU:WS-X6148-21AF

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Description

High‑density Fast Ethernet module using RJ‑21 telco connectors for structured cabling environments. Integrates an IEEE 802.3af PoE daughter card to power IP endpoints. Ideal for campus voice and edge aggregation in legacy 10/100 networks. Requires a compatible chassis and adequate system PoE power budget.

Features

- 48-port 10/100 Fast Ethernet density via RJ‑21 for efficient wiring
- Integrated IEEE 802.3af PoE for powering edge devices
- Telco-style cabling reduces rack clutter and simplifies large deployments
- Suitable for legacy FE campus access and voice deployments

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Does this module provide standards-based PoE?
A: Yes. It includes an IEEE 802.3af PoE daughter card for standards-based PoE.

Q: What cabling do I need to break out the RJ-21 connections?
A: Use RJ-21 (50‑pin) telco fan‑out cables or a telco patch panel to present 48 RJ‑45 ports.

Q: Is 802.3at/PoE+ supported?
A: No. This module provides 802.3af PoE only.

Q: What determines the total PoE power available?
A: The chassis power supplies and system PoE budget determine total deliverable PoE power.

Technical Specifications

- Port density: 48 x 10/100 Fast Ethernet
- Connector type: RJ-21 Telco (requires fan-out cables or patch panel)
- PoE: IEEE 802.3af (up to 15.4W per port; overall budget chassis-dependent)
- Form factor: Classic interface module for high-density FE
- Uplinks: None on-card
- Supported use cases: IP phones, wireless APs, PoE-powered edge devices
- Chassis compatibility: Compatible with Catalyst 6500 Series chassis
- Software/OS: Operates under supported supervisor engines and software releases

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