
EISK16-100T
Plug and Play Switching Hub for Industrial Automation Systems
Installation Guide
The EISK16-100T Skorpion-16 switching hub is designed for the Industrial Automation
environment. Like all Ethernet switches from Contemporary Controls, it features nonblocking (full wire-speed) operation. It divides an Ethernet network into 16 collision
domains — “bridging” data links to create larger network diameters than possible with
repeating hubs. Each port automatically negotiates its data rate to either 10 Mbps or
100 Mbps — controlling data flow with the PAUSE function in full-duplex links or with
the backpressure method in half-duplex links.
The switch provides preamble regeneration with symmetry and amplitude compensation
— retiming signals to eliminate jitter. Digital pre-emphasis compensates for inherent
signal strength roll-off. Link integrity is monitored, verifying 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. Throughput is improved by restricting traffic to those ports party
to a data exchange — while other data is simultaneously exchanged on other ports.
Store-and-forward operation is implemented and broadcast, multicast, or unicast
transmissions are received by all ports.
The EISK16-100T has 16 Auto-MDIX ports for attaching local devices. In addition to a
power LED, each port has one LED showing link/activity/rate and one showing duplex
status.
The unit operates from a wide range of low-voltage AC or DC power.
The EISK16-100T is provided with a writable label for easy
identification of the remote device attached to each cable.
®
INDUSTRIAL
CONTROL
EQUIPMENT
4EA4

Specifications
Electrical
INPUT DC AC
Voltage: 10–36 V 24 V ±10%
Power: 10 W 10 VA
Frequency: N/A 47–63 Hz
Class 2 Circuits Only
Environmental
Operating Temperature: 0°C to +60°C
Storage Temperature: – 40°C to +85°C
Humidity, non-cond.: 10% to 95%
Protection: IP 30
Mounting TS-35 DIN-rail
Shipping Weight 1 lb (0.45 kg)
Regulatory Compliance
CE Mark; CFR 47 Part 15, Class A
UL508 Industrial Control Equipment
Functional
Compliance: ANSI/IEEE 802.3
Data Rates: 10 and 100 Mbps
Signaling: 10BASE-T and
100BASE-TX
Connectors: Shielded RJ-45
Segment length: 100 m (maximum)
LED Indicators
Power green
Activity/Link green or yellow
Duplex green
RJ-45 Connector Pin Assignments
Pin Function
1 TD+
2 TD–
3 RD+
6 RD–
(All other pins are unused.)
Power Options

Power Considerations
Voltage in the range of 10–36 VDC or 24 VAC ±10% must deliver current commensurate
with 10-watt power consumption. The recommended size for solid power conductors is
16–22 AWG; for stranded conductors, use 16–18 AWG. Ground is directly connected
to zero volts and the chassis is isolated from zero volts. Input connections are reversepolarity protected.
Network Connections
The switch employs Auto-MDIX technology so that either straight-through or crossover
cables can be used to connect to network interface adapters or to another hub.
LED Indicators
The “PWR” LED glows solid green when the switch is properly powered. To aid in
troubleshooting, each port has two LEDs. The Port 2 LED labeled “L” glows solid if a
link exists, flashes to
show activity and shows
data rate by color: green
for 100 Mbps and yellow
for 10 Mbps. The LED
labeled “D” glows solid
green if full-duplex is on
or is unlit when that port is
operating in half-duplex
mode — but in half-duplex
operation it will flash if a
collision occurs. The other
port LEDs are unlabeled
but work the same.
Mechanical

NEED MORE HELP INSTALLING THIS PRODUCT?
More information can be found in the Technical Support part of our web site at
www.ccontrols.com. If contacting our office, ask for Technical Support.
WARRANTY
Contemporary Controls (CC) warrants this product to the original purchaser for five
years from the shipping date. If it fails to operate in compliance with its specification
during this period, CC will, at its option, repair or replace the product at no charge. The
customer is responsible for shipping the product; CC assumes no responsibility for the
product until received. This limited warranty covers products only as delivered. If user
modification damages the product, repair or replacement are not covered. Damage
from abuse, accident, disaster, misuse, or incorrect installation are not covered. This
warranty in no way warrants suitability of the product for any specific application. More
warranty information can be found at www.ccontrols.com.
Warning: This is a Class A product. In a domesti c envir onme nt this pr oduct may cause r adio
interference in which case the user may be required to take adequate measures.
RETURNING PRODUCTS FOR REPAIR
Before returning a product for repair, contact the manufacturer (US office) or its
representative (UK office) below for instructions on return procedure:
Contemporary Control Systems, Inc.
2431 Curtiss Street
Downers Grove, Illinois 60515 USA
Tel: +1-630-963-7070
Fax: +1-630-963-0109
E-mail: info@ccontrols.com
WWW: http://www.ccontrols.com
Contemporary Controls Ltd
Sovereign Court Two, UWSP
Sir William Lyons Road
Coventry CV4 7EZ UK
Tel: +44 (0)24 7641 3786
Fax: +44 (0)24 7641 3923
E-mail: info@ccontrols.co.uk
DECLARATION OF CONFORMITY
Applied Council Directives: Electromagnetic Compatibility Directive, 2004/108/EEC
Council Directive; General Product Safety Directive 92/59/EEC
Standards to which Conformity is Declared: EN 55022:1998/A2:2003 CISPR 22:1997/
A2:2002, Class A; EN 55024:1998/A2:2003 CISPR 24:1997/A2:2002, ITE – Immunity .
Manufacturer’s Declaration of November 6, 2008: I declare that the EISK16-100T
conforms to the above directives and standards.
George M. Thomas, President TD070600-0IA