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Cisco Catalyst 4900M Switch Installation Guide
78-18350-02
Chapter 1 Product Overview
Catalyst 4900M Half-Card Modules
WS-X4908-10GE Half-Card Ethernet Module
The WS-X4908-10GE module (Figure 1-7) is an 8-port 10-Gigabit Ethernet module that has the ability
to operate as a 16 port 1-Gigabit module by installing a Cisco TwinGig converter module in the X2
transceiver socket and then installing two 1-Gigabit SFP transceivers in the TwinGig converter.
Figure 1-78-Port 10-Gigabit Ethernet Module (WS-X4908-10GE)
Table 1-6 list the specifications for the WS-X4908-10GE half-card Ethernet module.
1Module Status LED 2Port LEDs
232120
2
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Table 1-6WS-X4908-10GE Half-Card Ethernet Module Specifications
Specification Description
Module type 10-Gigabit Ethernet module
Port duplex modeFull-duplex mode
Port speed 10G Mbps
Number of ports8 (10-Gigabit) or 16 (1-Gigabit). Each 10-Gigabit
port on the module can be converted into two
1-Gigabit ports using a Cisco TwinGig converter
module (CVR-X2-SFP) and SFP transceivers. Each
10-Gigabit X2 port can also be converted into one
10-Gigabit SFP+ transceiver port by installing a Cisco
OneX converter module ((CVR-X2-SFP10G).
Connector type SC (optical) or RJ-45 (copper)