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Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 5 Ethernet Cards
5.3 5.3 E100T-G Card
5.3 E100T-G Card
Note For hardware specifications, see the “A.7.2 E100T-G Card Specifications” section on page A-44.
The ONS 15454 uses E100T-G cards for Ethernet (10 Mbps) and Fast Ethernet (100 Mbps). Each card
provides 12 switched, IEEE 802.3-compliant, 10/100BaseT Ethernet ports that can independently detect
the speed of an attached device (autosense) and automatically connect at the appropriate speed. The ports
autoconfigure to operate at either half or full duplex and determine whether to enable or disable flow
control. You can also configure Ethernet ports manually. Figure 5-2 shows the faceplate and a block
diagram of the card.
Figure 5-2 E100T-G Faceplate and Block Diagram
The E100T-G Ethernet card provides high-throughput, low-latency packet switching of Ethernet traffic
across a SONET network while providing a greater degree of reliability through SONET self-healing
protection services. This Ethernet capability enables network operators to provide multiple 10/100 Mbps
access drops for high-capacity customer LAN interconnects, Internet traffic, and cable modem traffic
aggregation. It enables the efficient transport and co-existence of traditional TDM traffic with
packet-switched data traffic.
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