Contemporary Research EISK8-100T Series User Manual

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EISK8-100T/F_ Series
 
Plug and Play Fibre Switching Hub for Industrial Automation Systems 
Installation Guide 
EISK8-100T/F_ switching hubs are designed for Industrial 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 optimized 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. 
The switch works from a wide range of low-voltage AC or DC power and features a 
power LED.  
Each unit is provided with a writable label for easy identification of the remote device 
attached to each cable. 
 
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