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Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
OL-11496-01
Chapter 1 Cisco 12010, Cisco 12410, and Cisco 12810 Series Router Overview
Line Card and Route Processor Overview
GRP Auxiliary and Console Ports
The auxiliary and console ports on the GRP are EIA/TIA-232 (also known as
RS-232) asynchronous serial ports. These ports are used to connect external
devices to monitor and manage the system.
•
Auxiliary port —A (male) plug that provides a data terminal equipment
(DTE) interface. The auxiliary port supports flow control and is often used to
connect a modem, a channel service unit (CSU), or other optional equipment
for Telnet management.
•
Console port—A (female) receptacle that provides a data circuit-terminating
equipment (DCE) interface for connecting a console terminal.
Caution
To maintain Class B EMI compliance, use shielded cables when you connect to
the auxiliary and console ports of original GRPs (Part Numbers GRP= and
GRP-B=). An updated version of the GRP-B= board (Rev. F0) does not require
shielded cables for Class B compliance.
GRP Ethernet Ports and Status LEDs
The GRP has two types of Ethernet connections for Telnet use:
•
RJ-45 port—An 8-pin media-dependent interface (MDI) RJ-45 port for either
IEEE 802.3 10BASE-T (10 Mbps) or IEEE 802.3u 100BASE-TX (100 Mbps)
Ethernet connections.
•
MII connector—A 40-pin media-independent interface (MII) that provides
additional flexibility for Ethernet connections. The pinout of this standard
40-pin interface is defined by the IEEE 802.3u standard.
Note
The RJ-45 and MII interfaces on the GRP represent two physical
connection options for one Ethernet interface; therefore, you can use
either
the RJ-45 connection or the MII connection, but not both
simultaneously.
Summary of Contents for 12010 series
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