EISK8-100T/F_ Series
Plug and Play Fibre Switching Hub for Automation Systems
Installation Guide
EISK8-100T/F_ switching hubs are designed for automation environments.
Like all Ethernet switches from Contemporary Controls, each switching hub
features non-blocking (full wire-speed) operation.
Two fibre ports communicate at 100 Mbps and each port has one LED for
link status and activity. The series has three models that vary by type of
fibre connector in use. The EISK8-100T/FC and the EISK8-100T/FCS use
the SC type of connector. The EISK8-100T/FT uses the ST type. Only full-
duplex is supported on the fibre ports.
Six copper ports automatically negotiate the data rate to 10 Mbps or 100
Mbps and set flow control with the PAUSE function (full-duplex links) or the
backpressure method (half-duplex links). Each copper port uses the Auto-
MDIX function for attaching local devices and has one LED for
link/activity/rate and one LED for duplex status.
The unit provides preamble regeneration and retimes signals to eliminate
jitter. Digital pre-emphasis compensates for inherent signal strength roll-off.
Link indicates that a working adapter or hub is on the distant end of a
segment.
Port assignments are learned by reading Ethernet frames and logging the
source addresses to a table. Learned addresses are aged out of the table
after 300 seconds of inactivity. Throughput is optimised by restricting traffic
to only those ports that are party to a data exchange (while other data is
simultaneously exchanged on other ports). Store-and-forward operation is
used. Each port can receive any type of Ethernet message: broadcast,
multicast, or unicast.
Each unit is provided with a writeable label for easy
identification of the remote device attached to each cable.
