# E3 Frame Module Combination (12 Ports)

> Line module label | COCX-F3
> I/O module label | E3-12 FRAME I/O
> Number of I/O ports | 12
> Software release | First supported: 4.0.2 Final supported: 14.0.x
> Description | 135 W Unchannelized E3 for Frame
> Type | EFA ASIC
> Capability | E3 HDLC framing
> Software features | See ERX Module Guide, Appendix A, Module Protocol Support for information about the layer 2 and layer 3 protocols and applications that this module combination supports.
> Model compatibility | ERX7xx models ERX14xx models ERX310 router
> SRP module compatibility | SRP-5G+ SRP-10G SRP-40G SRP-40G PLUS SRP-SE10G
> Module redundancy support | 1:N redundancy NOTE: Line module redundancy is not supported on the ERX310 router.
> Cables and connectors | BT43 SMB connector Cable that adapts to 75-ohm BNC is available. The transmitted signal complies with ITUT G.703, Physical/electrical characteristics of hierarchical digital interfaces (November 2001) for cable lengths from 0–137 m (0–450 feet). See ERX Hardware Guide, Chapter 5, Cabling ERX Routers for more information.
> LEDs | See ERX Module Guide, Appendix B, Module LEDs.
> Alarms, errors, and events | See Monitoring Interfaces in JunosE Physical Layer Configuration Guide, Chapter 2, Configuring T3 and E3 Interfaces.