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18 Chapter 1 Passport 8250
241-5101-200 R2.2
Communication ports
The communication ports, which are located on the network board, include a
serial port, ethernet port, and redundant ATM uplink port.
Serial port
The serial port connects the Passport 8250 device to a local host using a
RS-232 cable. Using a standard terminal emulation software application
running on the local host, you can directly access the command line interface
(CLI).
Use theserial port toconfigure the Passport 8250 device foroperations before
the Passport 8250 device is connected to your network.
Ethernet port
The ethernet port connects the Passport 8250 device to a local area network
(LAN) using a RJ-45 cable.You can use a Telnet session on a remote host to
remotely access the CLI, provided the Passport 8250 device already has an
Internet protocol (IP) address.
Use theethernet port to configurethe Passport8250 devicewhile the Passport
8250 device is connected to your network and to communicate with other
devices within your network.
Redundant ATM uplink port
The ATM uplink port connects the Passport 8250 device to the ATM network
using a STM-1/OC-3 single-mode or multi-mode fiber optic cable. The ATM
uplink port has two physical connectors and one connector is configured as
the primary port that listens for incoming signals from the ATM network.
Dual power supply modules
The Passport 8250 device uses two field-replaceable 10 amps, -10 V DC
power supply modules. Each power supply module has a 3w3-D connector
and independent power feed.
If a power supply module fails, the Passport 8250 device can operate
temporarily usingone powersupply moduleand onepower supplyfiller pack.
Fan module
A field-replaceable fan module cools the internal components of the Passport
8250 device.