Hardware manual

Issue 8 Electra Elite
5 - 136 Installing Electronic Telephone Units
7.5 HUB(8)-U( ) ETU
7.5.1 Description
The HUB(8)-U( ) ETU is an optional Ethernet interface for
the Electra Elite KSU that supports eight Ethernet ports.
Each port has two LEDs that indicate status and activity.
A HUB is a switching point for data that comes together
from individual ports. A switch determines the port where
the data should be forwarded and regulates transmission.
The HUB(8)-U( ) ETU provides an efficient platform when
multiple ETUs that require Ethernet connection are
installed in the Electra Elite KSU. One port can be a
source port, and another port can be set as a target port
t o m i r r o r t h e s o u r c e a n d m o n i t o r d a t a t r a f f i c .
Figure 5-69 HUB(8)-U( ) ETU