Cisco

Cisco WS-X6148-RJ-21 | 48x 10/100 RJ-21, PoE: pre-standard/802.3af upgradeable, uplinks: 0, lic: none

Cisco WS-X6148-RJ-21 | 48x 10/100 RJ-21, PoE: pre-standard/802.3af upgradeable, uplinks: 0, lic: none

SKU:WS-X6148-RJ-21

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Description

Compact RJ-21-based Fast Ethernet access module with 48x 10/100 ports ideal for high-density edge builds using telco-style harnesses to patch panels. Supports optional pre-standard inline power (WS-F6K-VPWR) or IEEE 802.3af PoE with the WS-X6148-21AF-UG upgrade kit, subject to chassis power. A tidy, scalable choice for campus voice and device aggregation.

Features

- RJ-21 telco connectors enable clean, high-density wiring to patch panels
- 48-port Fast Ethernet access for campus edge deployments
- Upgradeable to pre-standard inline power or IEEE 802.3af PoE
- Auto-negotiation and Auto MDI/MDI-X streamline client onboarding
- Hot-swappable design for operational continuity

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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Technical Specifications

Technical Specifications

- Port density: 48x 10/100 Mbps Fast Ethernet
- Connector type: RJ-21 (50-pin Telco); breakout cables/patch panels required
- RJ-21 connectors: 2 (supports 48 copper access ports)
- PoE options: Pre-standard Cisco inline power (WS-F6K-VPWR) or IEEE 802.3af via WS-X6148-21AF-UG
- PoE power: Up to 15.4W per port with 802.3af upgrade and adequate chassis power
- Uplinks: None (all ports are access)
- Duplex/negotiation: Auto-negotiation (10/100, half/full), Auto MDI/MDI-X
- Layer 2 features: 802.1Q VLAN tagging, 802.1p CoS/QoS (platform dependent)
- Form factor: Classic interface line card for Catalyst 6500 series chassis
- Licensing: Not applicable (no license tier required)

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