E100T-12 Card; Figure; E100T-12 Faceplate And Block Diagram - Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Reference Manual

5.2 E100T-12 Card

5.2 E100T-12 Card
For hardware specifications, see the
Note
The ONS 15454 uses E100T-12 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.
diagram of the card.

Figure 5-1

E100T
12
FAIL
ACT
SF
The E100T-12 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 time-division
multiplexing (TDM) traffic with packet-switched data traffic.
Cisco ONS 15454 Reference Manual, R8.5
5-4
"A.7.1 E100T-12 Card Specifications" section on page

E100T-12 Faceplate and Block Diagram

Ethernet
10/100
MACs/switch
PHYS
Buffer
memory
Figure 5-1 shows the faceplate and a block
Flash DRAM CPU
A/D Mux
FPGA BTC
Control
memory
Chapter 5 Ethernet Cards
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