E120 Model - Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - E120 AND E320 HARDWARE GUIDE REV 9-29-2010 Hardware Manual

E120 and E320 11.3.x Hardware Guide

E120 Model

6
A fully configured E120 router consists of 2 switch route processors (SRPs), 3 switch
fabric modules (SFMs), 6 line modules, and up to 2 I/O adapters (IOAs) per line module.
See Figure 3 on page 6 and Figure 4 on page 6.
An IOA shelf (bracket) can be installed on a slot-by-slot basis to create a left and right
IOA bay, enabling you to use up to two IOAs in the same slot. This architecture enables
you to combine different IOA types in the same slot and to support oversubscribed
configurations. Air is pulled in from the right of the router by the fan tray and is exhausted
out the left side.
NOTE: The routers illustrated in this book might look different than your
router due to configuration variations.
Figure 3: E120 Router, Front View
Figure 4: E120 Router, Rear View
Copyright © 2010, Juniper Networks, Inc.