Cisco

Cisco WS-X6548-RJ-21 | 48x 10/100 (via RJ-21 Telco) | Non-PoE | CEF256; DFC upgradable

Cisco WS-X6548-RJ-21 | 48x 10/100 (via RJ-21 Telco) | Non-PoE | CEF256; DFC upgradable

SKU:WS-X6548-RJ-21

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Description

High-density Fast Ethernet access card presenting 48 ports via RJ-21 Telco connectors for efficient cable management into punch-downs or breakout panels. CEF256 forwarding with optional DFC upgrade supports scalable campus access deployments on Catalyst 6500/7600 platforms.

Features

- Space-efficient 48-port Fast Ethernet via RJ-21 Telco connectors
- CEF256 architecture with optional DFC for scalability
- Ideal for structured cabling and punch-down environments
- Simple, non-PoE access edge for legacy FE deployments
- Supervisor-driven L2/L3 feature set integration

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: How are the 48 ports exposed?
A: Through two RJ-21 Telco connectors, each carrying 24 Fast Ethernet ports to a breakout panel or cable.

Q: Does this card provide PoE?
A: No. It is a non-PoE Fast Ethernet module.

Q: Are RJ-21 breakout cables included?
A: No. Breakout cables or patch panels are required and sold separately.

Q: Is a DFC necessary?
A: No. The module operates with CEF256 by default; a DFC is optional for distributed forwarding.

Q: Which platforms are supported?
A: Catalyst 6500/7600 chassis, subject to supervisor and software compatibility.

Technical Specifications

- Port presentation: 48x 10/100 Fast Ethernet via RJ-21 Telco connectors
- Connectors: 2x RJ-21 50-pin (each maps 24 FE ports); requires RJ-21-to-RJ-45 breakout cables or patch panels (not included)
- Power: Data-only (non-PoE)
- Forwarding: CEF256; supports optional Distributed Forwarding Card (DFC)
- Compatibility: Cisco Catalyst 6500 and 7600 chassis; verify supervisor/IOS version support
- Use cases: High-density FE to telco patch panels and structured cabling environments
- Features: VLANs and QoS/ACL capabilities as enabled by the supervisor

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