Grp Auxiliary And Console Ports; Grp Ethernet Ports And Status Leds - Cisco 12416 Installation And Configuration Manual

Alarm Card, Line Card, and Rout Processor Overview

GRP Auxiliary and Console Ports

Caution

GRP Ethernet Ports and Status LEDs

Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
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The auxiliary and console ports on the GRP are EIA/TIA-232 (also known as
RS-232) asynchronous serial ports. These ports connect external devices to
monitor and manage the system.
The 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.
The console port—A (female) receptacle that provides a data
•
circuit-terminating equipment (DCE) interface for connecting a console
terminal.
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.
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.
The RJ-45 and MII interfaces on the GRP represent two physical
Note
connection options for one Ethernet interface; therefore, you can use
either the RJ-45 connection or the MII connection, but not both
simultaneously.
Chapter 1 Product Overview
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