Contemporary Control Systems EIS UL864 User Manual

EISwitch

A Line of Fixed-Port Industrial Ethernet 10/100 Mbps Switches

INSTALLATION GUIDE

INTRODUCTION

The EIS series — Ethernet Interconnect Switch in the CTRLink® family —
provides a solution for those industrial applications requiring a larger
network diameter and greater throughput. The EIS series is an essential
element of the control strategy.

Classified as switching hubs, each device segments the Ethernet network into
separate collision domains. The EIS8-100T offers eight ports of expansion
via twisted-pair cabling. Three models offer two fibre ports when greater
distance or galvanic isolation is required while offering four twisted-pair
ports for local drops: The EIS6-100T/FC and EIS6-100T/FT accommodate a
multimode fibre backbone and the EIS6-100T/FCS accommodates single­mode fibre.

Each switch functions as a ―bridge‖ between the various data links —
creating a larger network diameter than can be achieved with repeating hubs.
To optimize speed and throughput, some functions are automatically
negotiated:

Each twisted-pair port automatically optimises its data rate to 10 Mbps
or 100 Mbps. The data rate of fibre ports is fixed at 100 Mbps.

Each port negotiates flow control — supporting the PAUSE function
for full-duplex links, and the backpressure scheme for half-duplex links.

The switch learns the ports of devices by reading Ethernet frames and noting
source addresses. It then creates and maintains a table of addresses and port
assignments by which traffic is restricted to only those ports party to a data
exchange. This allows other data to be simultaneously exchanged on other
ports — with improved throughput. If a broadcast, multicast, or unicast
transmission to an unknown destination arrives at a port, all other ports
receive the transmission.

The switch front-panel features LEDs for link status, port activity, and data
rate of each port. All units operate from low-voltage AC or DC power and
are either DIN-rail or panel mountable.

SPECIFICATIONS

Electrical

INPUT DC AC

Voltage: 10–36 V 8–24 V
Power: 10 W 10 VA
Frequency: N/A 47–63 Hz

Environmental

Operating Temperature: 0ºC to +60ºC
Storage Temperature: –40ºC to +85ºC

Regulatory Compliance

CE Mark, CFR 47 Part 15 Class A,
UL 508 Industrial Control Equipment
(intended for use with Class 2 circuits)
UL 864, 9th Ed. Recognized Component – Control
Units and Accessories for Fire Alarm Systems

Warning: This is a Class A product. In a domestic environment the product may cause radio interference in
which case the user may be required to take adequate measures.

Functional

Compliance: ANSI/IEEE 802.3
Data Rate: 10 Mbps and 100 Mbps
Signalling: 10BASE-T, 100BASE-TX

100BASE-FX
LED Indicators

SWITCH EACH PORT
Power — green Link/Data — green
HS (100 Mbps) — yellow

Shipping Weight

2 lbs. (.9 kg)

Mechanical

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RJ-45

Usage

Note : The EIS Series provides the Auto-MDIX function,

eliminating the need for crossover cables between switches.

1

TD+

2

TD–

3

RD+

4

Not Used

5

Not Used

6

RD–

7

Not Used

8

Not Used

100BASE-T MDI-X CONNECTOR PIN ASSIGNMENTS

INSTALLATION

A clip is pre-attached for mounting on 35 mm DIN-rail. For panel-mounting, remove the clip,
extend the mounting brackets and secure with two #8 pan-head screws (not provided). See the
mechanical drawing on page two for mounting in an industrial enclosure or wiring closet.

Cabling Considerations

When attaching cables to the EISwitch, Table 1 should be considered.

Table 1 — Cabling Considerations

Observe in Table 1 that segment distance is very limited when using copper media —
regardless of the data rate. Although 10BASE-T segments can successfully use Category
3, 4 or 5 cable, 100BASE-TX segments must use Category 5 cable.

A popular choice for improved distance is multimode fibre — which also gives good
electromagnetic noise immunity and optimum protection from lightning strikes. Considerable
distance can be achieved in full-duplex mode — and the greatest distance can be realized in
full-duplex mode with single-mode fibre. Note that half-duplex operation yields a modest,
fixed distance which does not vary with the type of fibre in use. This is because half-duplex
mode is limited by the collision domain — irrespective of the length and type of fibre.

EIS switches offer three types of field connectors. Copper ports accept RJ-45 modular
plugs and fibre ports accept either ST or SC style connectors.

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