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ERX 11.1.x Hardware Guide
OC48 Line Modules
The ERX1440 router with the SRP-40G+ SRP module supports OC48 line modules.
Other ERX routers do not support OC48 line modules.
An OC48 line module spans two slots in an ERX1440 router. You can install this line
module only in slots 2–3 and slots 4–5. Other slots in the system do not support this
line module.
The corresponding OC48 Frame APS I/O module spans only one slot. Install the I/O
module in the lower of the slots (either slot 2 or slot 4) that the line module spans.
GE-2 Line Modules
The ERX1440 router with the SRP-40G+ SRP module supports GE-2 line modules
in all slots; however, full bandwidth is delivered only when the line module is in slot
2 or slot 4. The line module can be used with other SRP modules, but maximum line
performance will not be achieved.
The ERX310 router with the SRP-SE10G SRP module supports GE-2 line modules in
both slots (1 and 2). Maximum line performance is achieved in either slot.
Other ERX routers do not support GE-2 line modules.
Managing Modules Using the Software
For information about software procedures associated with replacing and managing
modules, see JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules.
Hot-Swapping Modules
All ERX routers support hot-swapping of modules. Hot-swapping enables you to add
or remove a module without powering down the system.
Protecting Modules and Slots
Each ERX chassis has an ESD (electrostatic discharge) grounding jack. See Table 3
on page 35 for locations. To prevent damage from electrostatic discharge, connect
an antistatic wrist strap to the jack when handling components.
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Overview
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Troubleshooting
