Juniper Networks E-Series - Manual (Page 30)

CHAPTER 1
E-Series Overview 1-8
ERX-310 Router
The ERX-310 router is a low-end platform that supports all of the same
services as the ERX-7xx/14xx models, but with smaller capacity and
scaling capabilities. Like the ERX-7xx/14xx models, the ERX-310 router
uses the same software architecture, providing a single IP entry point into
the network with the same IP-based protocols and services that are
available on other E-series routers. The ERX-310 router is designed to be
used as a small distributed POP router as well as a high-end CPE router.
The ERX-310 router is a three-slot chassis with a midplane architecture.
One slot supports one nonredundant 10-Gbps SRP module, while the
other two slots support line modules. The router supports existing E-series
ASIC-based line modules (except the OC48/STM16 line module).
Note: The 10-Gbps SRP module used in the ERX-310 router is different from the
10-Gbps SRP module used in the ERX-7xx/14xx models. See section
SRP
Module , later in this chapter, for more information.
The ERX-310 router is available in either redundant AC- or DC-powered
models.
Figure 1-8 ERX-310 router, front view (AC model)
Note: DC model has blank filler panels in power supply slots.
Fan tray
Line modules
SRP module
PCMCIA slot
AC power
supply A
AC power
supply B
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