Cisco Internet Router Cisco 12404, Installation And Configuration Manual

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Chapter 1 Product Overview
Route Processors
1-12
Cisco 12404 Internet Router Installation and Configuration Guide
OL-11636-01
Ethernet Port
The GRP has one Ethernet port which uses one of the following two port
connection types:
•
RJ-45 port—Is an 8-pin MDI RJ-45 port for either IEEE 802.3 10BASE-T
(10 Mbps) or IEEE 802.3u 100BASE-TX (100 Mbps) Ethernet connections
(
Figure 1-3 ).
Figure 1-3 GRP RJ-45 Connector
•
MII receptacle—Is a 40-pin media independent interface (MII) port that
provides additional flexibility in Ethernet connections (
Figure 1-4 ). The
pinout of this standard 40-pin port is defined by the IEEE 802.3u standard in
Appendix A of this guide (
Figure 1-5 ).
Figure 1-4 GRP MII Ethernet Receptacle
210222
8 7 6 5 4 3 2 1
RJ-45 connector
Jackscrew Pin 21
Pin 1
H6538
todd.book Page 12 Tuesday, November 27, 2007 6:02 PM