Juniper Networks J4350, J6350 manual Built-In Gigabit Ethernet Ports, Console Port, AUX Port

Chapter 2: System Overview

You can change the default behavior of the RESET CONFIG button. For more information, see the J-series Services Router Basic LAN and WAN Access Configuration Guide.

Built-In Gigabit Ethernet Ports

Four built-in Gigabit Ethernet ports provide LAN connections over copper interfaces to hubs, switches, local servers, and workstations. You can also designate an Ethernet port for management traffic. When configuring one of these ports, you use the interface name that corresponds to the port’s location. From left to right on the front panel, the interface names for the ports are ge-0/0/0, ge-0/0/1, ge-0/0/2, and ge-0/0/3.

For Gigabit Ethernet port pinout information, see “Gigabit Ethernet uPIM RJ-45

Connector Pinout” on page 233.

Each port has two LEDs, a TX/RX LED on the left side and a LINK LED on the right side. Table 10 on page 23 describes the built-in Ethernet port LEDs.

Table 10: Gigabit Ethernet Port LEDs

Function	Color	State	Description
LINK	Green	On steadily	Port is online.
	Unlit	Off	Port is offline.
TX/RX	Green	Blinking	Port is transmitting or receiving data.
	Unlit	Off	Port might be online, but it is not receiving data.

Console Port

You can use the console port on the chassis front panel to connect to the Routing Engine through an RJ-45 serial cable. From the chassis console port, you can use the CLI to configure the router. The console port is configured as data terminal equipment (DTE) and supports the RS-232 (EIA-232) standard.

For information about securing the chassis console port, see the J-series Services

Router Administration Guide.

For pinout information, see “Chassis Console Port Pinouts” on page 234.

AUX Port

The port labeled AUX on the front panel of the J-series Services Router is for future use and is not activated.

J2320 and J2350 Services Router Hardware Features ■ 23