Erx310 Broadband Services Router - Juniper ERX - RELEASE 11.1.X HARDWARE GUIDE 03-23-2010 Hardware Manual

Chapter 1: ERX Overview
Figure 4: ERX7xx Models, Rear View

ERX310 Broadband Services Router

The ERX310 router is a low-end platform that supports all of the same services as
the ERX7xx and ERX14xx models, but with smaller capacity and scaling capabilities.
Like the ERX7xx and ERX14xx models, the ERX310 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 ERX routers. The ERX310 router
is designed to be used as a small distributed POP router as well as a high-end CPE
router.
The ERX310 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), as well as a select number of combination cards. The
combination cards provide a fixed combination of interfaces on the I/O module so
that a single slot can support multiple interfaces (ATM OC3 and GE, for example).
NOTE: The 10-Gbps SRP module used in the ERX310 router is different from the
10-Gbps SRP module used in the ERX7xx and ERX14xx models. See "SRP Module"
on page 9 for more information.
The ERX310 router is available in either redundant AC- or DC-powered models.
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ERX Routers