Installation guide

Chapter 1: About the E4G Series Routers
E4G Series Routers Hardware Installation Guide
20
E4G-400 Cell Site Aggregation Router
The E4G-400 cell site aggregation router is a 1RU unit that allows 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).
The front panel of the E4G-400 router (Figure 6) has the following features:
● Twenty 10/100/1000BASE-T (RJ-45) dedicated ports
● Four 100/1000BASE-X (SFP) or 10/100/1000BASE-T (RJ-45) shared ports
● Four 100/1000BASE-X (SFP) dedicated ports
● Timing interfaces
● BITS-IN interface
● Console port
Remote
(Alarm LED)
Steady green Remote alarm active
Blinking green Remote alarm active but silenced
Off No remote alarm active
On-Line Steady green On line
Off Off line
PWR Steady green Normal operation
Off No power
Port LEDs
(1 through16)
Steady green Link OK
Blinking green Activity
Off No link, or port is disabled.
Table 4: LEDs on the E4G-200-12x Cell Site Router (Continued)
Label/type Color/State Meaning