Juniper Networks E-Series manual Series Modules, Srp I/O

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CHAPTER 1 E-Series Overview

E-Series Modules

The system supports an SRP module and a selection of line modules. You can use any line module for access or uplink. Access line modules receive traffic from low-speed circuits, and the system routes the traffic onto higher-speed uplink line modules and then to the core of the network.

Each module connects to a corresponding I/O module via a passive midplane. See Figure 1-11.

The front panel of each module contains a collection of status LEDs (light-emitting diodes). For information about how to interpret the LEDs, see Chapter 10, Troubleshooting.

I/O modules	SRP I/O
	module
	I/O modules

Connection via passive midplane

Line modules

SRP modules

Line modules

Figure 1-11Modules in ERX-14xx model

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