Juniper Networks 8 manual ERX-310 Router, Front View AC Model

ERX 8.0.x Hardware Guide

ERX-310 Router

The ERX-310 router is a low-end platform that supports all of the same services as the ERX-7xx and ERX-14xx models, but with smaller capacity and scaling capabilities. Like the ERX-7xx and ERX-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 ERX 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), 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 ERX-310 router is different from the 10-Gbps SRP module used in the ERX-7xx and ERX-14xx models. See “SRP Module” on page 10 for more information.

The ERX-310 router is available in either redundant AC- or DC-powered models.

Figure 5: ERX-310 Router, Front View (AC Model)

Line modules

PCMCIA slot

Fan tray
SRP module
AC power	AC power
supply A
	supply B

g013731

NOTE: The DC model has blank filler panels in power supply slots.

8 ERX Routers