E4G-400 Cell Site Aggregation Router

The E4G-400 cell site aggregation router is a compact unit (1RU or 1.75 inches high) that enables networks to aggregate multiple Ethernet links from various cell sites and route the traffic to the mobile core.

The E4G-400 router provides 28 Gigabit Ethernet ports and port options for up to six 10-Gigabit Ethernet ports, as well as a 16-port T1/E1 module with pseudowire capability. The T1/E1 module is used where 2G and 3G radios are co-located at the aggregation site, and eliminates the need for separate cell site routers.

The Gigabit and 10-Gigabit Ethernet ports on the E4G-400 router support Synchronous Ethernet (SyncE) and IEEE 1588v2 timing. Integrated timing connectors on the front panel provide timing based on either the ITU-T Synchronous Ethernet (SyncE) protocol or the Precision Time Protocol based on IEEE specification 1588v2. Four mini-BNC connectors providing Sync In/Sync Out timing interfaces and an RJ-422 connector provides a BITS-IN interface.

The E4G-400 router has 4 shared ports. For each pair of shared ports, either the 10/100/1000BASE-T port (RJ45) or 100/1000BASE-X (SFP) port can be used as needed.

The E4G-400 router supports stacking using ports on installed port option cards at the back of the unit. Up to eight units can be connected into a single management entity that has up to 192 Gigabit Ethernet ports and up to 32 10-Gigabit Ethernet ports.

At the back of the unit are two bays for either AC or DC power supplies. One 300 W AC or DC power supply is included with the base unit. A redundant power supply must be ordered separately. You can mix any combination of 300 W AC and DC power supplies based on the need at the particular site. For example, you can have a DC main power feed and an AC input backup from an uninterruptible power supply (UPS).

1 = RJ-45 ports	5 = Stack number indicator
2 = SFP ports	6 = Management and USB ports
3 = Timing connections (Mini-BNC connectors)	7 = Shared ports
4 = BITS IN connector (RJ-45 connector)	8 = Console port

1 = Slot A	3 = Fan tray
2 = Slot B	4 = Power supply bays