1-port GE or 8-port 10/100 FE Line Module: supports (1) Gigabit Ethernet interface or (8) 10/100 Fast Ethernet interfaces with 256MB of memory. Requires either the GE IOA (ERX-GIGESFP-IOA) with pluggable SFP adapters or the FE IOA (FE-8_I/O). Line module

1-port GE or 8-port 10/100 FE Line Module: supports (1) Gigabit Ethernet interface or (8) 10/100 Fast Ethernet interfaces with 256MB of memory. Requires either the GE IOA (ERX-GIGESFP-IOA) with pluggable SFP adapters or the FE IOA (FE-8_I/O). Line module redundancy is not supported. This line module has the following minimum software requirements: 3.2.3p27-0, 3.3.2p8-1, 3.4.1p8-2, 4.0.3, 4.1.1, 5.0.0 (Edinburgh) or later.