Cisco Catalyst 4948E User Manual

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Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
OL-21561-02
Chapter 3 Installing the Switch
Attaching the Interface Cables
Figure 3-12 Verifying the SFP Transceiver Installation
Note For an optical SFP transceiver, before removing the dust plugs and making any optical connections,
observe the following guidelines:
• Always keep the protective dust plugs on the unplugged fiber-optic cable connectors and the
transceiver optical bores until you are ready to make a connection.
• Always inspect and clean the LC connector end-faces just before making any connections. See the
Tip on this page for a pointer to a fiber-optic inspection and cleaning white paper.
• Always grasp the LC connector housing to plug or unplug a fiber-optic cable.
Step 9 Remove the dust plugs from the network interface cable LC connectors. Save the dust plugs for future
use.
Step 10 Inspect and clean the LC connector’s fiber-optic end-faces.
Tip For complete information on inspecting and cleaning fiber-optic connections, see the white-paper
document at this URL:
http://www.cisco.com/en/US/tech/tk482/tk876/technologies_white_paper09186a0080254eba.shtml
Step 11 Remove the dust plugs from the SFP transceiver optical bores.
Step 12 Immediately attach the network interface cable LC connector to the SFP transceiver.
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Cisco Catalyst 4948E Specifications

General

Model	Catalyst 4948E
Switching Capacity	176 Gbps
Rack Units	1U
Authentication Method	RADIUS, TACACS+
Flash Memory	256 MB
Power Device	Internal power supply
Ports	48 x 10/100/1000
Uplink Ports	4 x 10 Gigabit Ethernet
Power Supply	Dual, hot-swappable
Layer Support	Layer 3
MAC Address Table Size	32000 entries
Jumbo Frame Support	9216 bytes
Routing Protocol	OSPF, EIGRP, BGP, RIP
Remote Management Protocol	SNMP, CLI, HTTP, HTTPS, SSH, Telnet
Features	VLAN support, QoS, IPv6 support, Access Control Lists (ACLs)
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3z
Voltage Required	100-240 VAC
Operating Temperature	0 to 40 °C
Relative Humidity	10 - 95% (non-condensing)
Height	1.72 in