Re-S-1800 Routing Engine Description; Re-S-1800 Routing Engine Components; Figure 26: Re-S-1800 Front View - Juniper MX240 Hardware Manual

See Also

RE-S-1800 Routing Engine Description

Figure 26: RE-S-1800 Front View

Ethernet
Auxiliary
port port
Extractor
clip
Console USB Reset
port port button
Copyright © 2019, Juniper Networks, Inc.
router boots is called the primary boot device, and the other disk is the alternate boot
device.
NOTE: If the router boots from an alternate boot device, a yellow alarm lights
the LED on the router's craft interface.
Booting in a RE-S-X6-64G and in a RE-S-X6-64G-LT Routing Engine follows this
sequence—the USB device, SSD1, SSD2, and LAN. SSD1 is the primary boot device. Boot
sequence is tried twice for SSD1 and SSD2.
Removing an MX240 Routing Engine on page 230
Installing an MX240 Routing Engine on page 232
MX240 Routing Engine Serial Number Label on page 371
Figure 26 on page 63 shows RE-S-1800 routing engine.
SSD SSD
slot 1 slot 2
Extractor
clip
RE-S-1800 Routing Engine Components on page 63
RE-S-1800 Routing Engine LEDs on page 64
RE-S-1800 Routing Engine Boot Sequence on page 64

RE-S-1800 Routing Engine Components

Each Routing Engine consists of the following components:
CPU—Runs Junos OS to maintain the router's routing tables and routing protocols..
DRAM—Provides storage for the routing and forwarding tables and for other Routing
Engine processes.
USB port—Provides a removable media interface through which you can install Junos
OS manually. Junos OS supports USB version 1.0.
Chapter 1: Overview
63