Prp Auxiliary And Console Ports - Cisco 12416 Installation And Configuration Manual

Alarm Card, Line Card, and Rout Processor Overview

PRP Auxiliary and Console Ports

Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
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The following LEDs on the front panel indicate traffic status and port selection
(Figure 1-19):
LINK, EN, TX, RX—Indicate link activity (LINK), port enabled (EN), data
•
transmission (TX), and data reception (RX).
PRIMARY—Indicates which Ethernet port is selected (ETH 0 or ETH 1).
•
Because both ports are supported on the PRP, ETH 0 is always on. ETH 1
Note
lights when it is selected.
Figure 1-19 Port Activity LEDs—Partial Front Panel
ETH 0
The auxiliary and console ports on the PRP 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.
Chapter 1
ETH 1
Product Overview
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