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Cisco

Cisco CBS250-48T-4G-AU | 48x 1G RJ-45; PoE: None; Uplinks: 4x 1G SFP; Smart Managed L2/L3 static

Cisco CBS250-48T-4G-AU | 48x 1G RJ-45; PoE: None; Uplinks: 4x 1G SFP; Smart Managed L2/L3 static

CBS250-48T-4G-AU

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Description

48-port Gigabit smart managed switch with enterprise L2 features and basic L3 static routing for small and mid-size networks. Four dedicated 1G SFP fiber uplinks provide flexible aggregation to core/distribution or long-reach links. Security, QoS, and multicast controls are built-in for converged voice, video, and data.

Features

- 48x Gigabit access ports for high-density edge connectivity
- 4x dedicated 1G SFP uplinks for flexible fiber aggregation
- Smart managed L2 with L3 static routing to segment networks
- Strong security with 802.1X, ACLs, DHCP snooping, and IP source guard
- Robust multicast and QoS for voice/video performance
- Energy Efficient Ethernet to reduce power consumption
- Quiet, efficient operation suitable for office wiring closets
- Intuitive web management with SNMP for monitoring

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 switch require a subscription license?
A: No. It is a smart managed platform with no recurring license required.

Q: Can I use 1G fiber uplinks to connect to another switch over distance?
A: Yes. The four SFP slots accept standard 1G SFP transceivers such as 1000BASE-SX or 1000BASE-LX for short or long reach over LC fiber.

Q: Does it support inter-VLAN routing?
A: Yes. It supports basic Layer 3 static routing for inter-VLAN routing without dynamic routing protocols.

Q: Is hardware stacking supported?
A: No hardware stacking. Multiple units can be centrally managed but operate as standalone switches.

Q: Can I prioritize voice traffic?
A: Yes. Use Voice VLAN and QoS (DSCP/CoS) to prioritize real-time traffic.

Technical Specifications

- Ports: 48x 10/100/1000 RJ-45 access ports
- Uplinks: 4x 1G SFP (1000BASE-X)
- PoE: None (all ports are data-only)
- Management: Smart managed via web UI; CLI (limited), SNMP v1/v2c/v3, RMON
- Layer 2: 802.1Q VLANs, Voice VLAN, Port Isolation, Link Aggregation (LACP)
- Layer 3: Static IPv4/IPv6 routing, Inter-VLAN routing, DHCP relay
- Resiliency: STP/RSTP/MSTP, Loop protection, UDLD (link monitoring)
- Security: 802.1X (port/MAB), ACLs (IPv4/IPv6/MAC), DHCP snooping, IP source guard
- QoS: 8 egress queues, DSCP/CoS marking, rate limiting, scheduling (WRR/SP)
- Multicast: IGMP snooping v1/v2/v3, MLD snooping
- Energy: 802.3az Energy Efficient Ethernet, auto power-down
- Form factor: 1U rack-mount; front RJ-45 access; SFP fiber slots for uplink
- Transceiver support: 1G SFP optics (e.g., 1000BASE-SX/LX) with LC connectors

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