In the ERX-1400 series, modules mount vertically in a chassis with 14 slots, whereas in the ERX-700 series, modules mount horizontally in a chassis with 7 slots. See Figure 3-1. For information about compatibility between lines modules and SRP modules, see Table 10-2 in Chapter 10, Module Specifications.
For details about available line modules, see Appendix 10, Module Specifications.
The slots in the ERX-700 series and the ERX-1410 system chassis are divided into groups. The number of groups and number of slots per group depend on the system. There are no slot groups in the ERX-1440 system.
Slot Groups for the ERX-1410 System
A slot group in the ERX-1410 system comprises three adjacent chassis slots. The groups for the ERX-1410 system consist of the following slots (Figure 3-2):
- Slot group 1 - slots 0 through 2
- Slot group 2 - slots 3 through 5
- Slot group 3 - slots 8 through 10
- Slot group 4 - slots 11 through 13
Slots 6 and 7 are reserved for the SRP modules.
Slot Groups for the ERX-700 Series
A slot group in the ERX-700 series comprises one slot or two adjacent slots. The groups for the ERX-700 series consist of the following slots (Figure 3-3):
Slots 0 and 1 are reserved for the SRP modules.
Combinations of Line Modules
For information about allowed combinations of line modules, see ERX System Basics Configuration Guide, Chapter 5, Managing Line Modules and SRP Modules.
OC48 Line Modules
The ERX-1440 system with the SRP-40G+ SRP module supports OC48 line modules. Other ERX systems do not support OC48 line modules.
An OC48 line module spans two slots in an ERX-1440 system. 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.
Replacing and Managing Modules
For information about software procedures associated with replacing and managing modules, see ERX System Basics Configuration Guide, Chapter 5, Managing Line Modules and SRP Modules.
The ERX-700 series and ERX-1400 series support hot-swapping of modules. Hot-swapping allows you to add or remove a module without powering down the system.
Required Tools and Safety Items
You need the following tools to install a line module: