New and Used Cisco WS-X4548-GB-RJ45 Switch Modules for Sale (WSX4548GBRJ45)

Short Description: Cisco Catalyst 4500 Enhanced 48-Port Switch Module with 10/100/1000 Base-T Ports and RJ-45 (Cisco Catalyst 4500 series)

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WS-X4548-GB-RJ45 Product Specifications

This Catalyst module, with multispeed autosensing, autonegotiating technology, provides wiring-closet investment protection by allowing Fast Ethernet desktops to migrate to Gigabit Ethernet in the future, without replacing the switch line cards.

Interfaces/Ports Details: 48 x RJ-45 10/100/1000Base-T Auto-sensing/Auto- negotiating LAN
Interfaces/Ports: 48 x 10/100/1000Base-T LAN
Certifications & Standards: IEEE 802.3x, FCC (CFR 47) Part 15, ICES 003, EN55022, CISPR22, AS/NZS 3548, VCCI with UTP cables, and comply with the limits for a Class B digital device per EN55022, CISPR22, AS/NZS 3548, VCCI with shielded FTP cables
Connectivity Media: Category 5 UTP 10/100/1000Base-T
Data Transfer Rate: 10Mbps Ethernet Half/Full-duplex, 100Mbps Fast Ethernet Half/Full-duplex, 1Gbps Gigabit Ethernet Full-duplex
Number of Ports/Channels: 48

Additional Product Notes:

The 48 ports can burst to Gigabit Ethernet line rate and can share 12 Gbps of full-duplex bandwidth into the switching fabric.
The amount of oversubscription can be controlled simply by varying the number of ports used at 1000 Mbps
All ports use the standard IEEE 802.3x flow-control (pause frame) mechanism to control Gigabit Ethernet host traffic.
The WS-X4548-GB-RJ45 switching module have 48 oversubscribed ports in six groups of eight ports each:
- Ports 1, 2, 3, 4, 5 ,6, 7, 8
- Ports 9, 10, 11, 12, 13, 14, 15, 16
- Ports 17, 18, 19, 20, 21, 22, 23, 24
- Ports 25, 26, 27, 28, 29, 30, 31, 32
- Ports 33, 34, 35, 36, 37, 38, 39, 40
- Ports 41, 42, 43, 44, 45, 46, 47, 48
The eight ports within each group use common circuitry that effectively multiplexes the group into a single, nonblocking, full-duplex Gigabit Ethernet connection to the internal switch fabric. For each group of eight ports, frames received are buffered and sent to the common Gigabit Ethernet link to the internal switch fabric. If the amount of data received for a port begins to exceed buffer capacity, flow control sends pause frames to the remote port to temporarily stop traffic and prevent frame loss.