
MICROSENS GmbH & Co. KG – Küferstr. 16 - 59067 Hamm / Germany - Tel. +49 2381/9452-0 - FAX -100 - www.microsens.com
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User Manual
MS657140X
Industrial Fast Ethernet Switch
8x 10/100Base-TX
CE MARKING
This equipment c omplies with the requirements relating to
electromagnetic compatibility, EN 55022 cl ass A for ITE, the essential
protection requirement of Council Directive 2004 /108/EC on the
approximation of the laws of the Member States rel ating to
electromagnetic compatibility.
Company has an on -going policy of upgrading its products and it may
be possible that information in this document is not up -to-date.
Please check with your local distributors for the latest information.
No part of this document can be copied or reproduced in any form
without written consent from the company.
Trademarks:
All trade names and trademarks are the properties of their respective
companies.
Copyright © 2016, All Rights Reserved .

MICROSENS GmbH & Co. KG – Küferstr. 16 - 59067 Hamm / Germany - Tel. +49 2381/9452-0 - FAX -100 - www.microsens.com
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Introduction
This ruggedized Industrial Fast Ethernet Switch is equipped with eight
10/100Base-TX Fast Ethernet ports. With its multi-purpose design, it can also be used
for DIN-Rail or wall-mounted. It is an ideal unit for IP surveillance, traffic monitoring
and security applications in critical environment. It can tolerate -40°C to 75°C in harsh
environment to perform a reliable network.
Housing Dimensions
NOTE:
Housing dimension is for the purpose of showing product length, width, height, DINrail, and terminal block’s position and dimension. The exact TX or fiber port numbers
vary by models

MICROSENS GmbH & Co. KG – Küferstr. 16 - 59067 Hamm / Germany - Tel. +49 2381/9452-0 - FAX -100 - www.microsens.com
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Installation package
This unit can be installed by DIN-rail mounted or wall-mounted. DIN-rail brackets and
wall-mounted bracket are included.
Power connection
This unit provides a 6-pin terminal block. It can be operated using 48-56VDC power
source. Always make sure your input voltage is within this supported voltage range.
To make power connection – Follow the printed polarity for V1+, V1-, V2+, V2- and
ground. Connect positive wire to V+, connect negative wire to V-, and connect
ground/earth to grounding screw as shown.
Relay: You may use 24V@1A relay connection to your external device for special
purpose. When two powers are connected, the relay is in OPEN mode. If only one of
the power sources is connected, the relay change to SHORT mode.
Connecting procedure
STEP 1: Connect ground/earth to grounding screw.
STEP 2: Pull out 6-pin terminal block in the included mounting kit package.
STEP 3: Connect power wire to V1+, V1-, V2+, and V2- with correct polarity.
Possibly connect alarm relay.
STEP4: Plug the connector into terminal block socket shown above.
WARNING: Always SHUTS OFF power source to connect power wire.
WARNING: Any exceeded input voltage will not make this unit function and may
damage this unit.

MICROSENS GmbH & Co. KG – Küferstr. 16 - 59067 Hamm / Germany - Tel. +49 2381/9452-0 - FAX -100 - www.microsens.com
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Front view
LEDs
Per unit:
LED Colour Description
PW1 Green On: power 1 is connected
PW2 Green On: power 2 is connected
SW Amber Indicates relay status
On: only PW1 or PW2 is connected
Off: both power ports are supplied
Per port:
LED Colour Description
Link/Activity Green On: valid link established
Flashing: data transmission
Note: The amber port LED is not used!

MICROSENS GmbH & Co. KG – Küferstr. 16 - 59067 Hamm / Germany - Tel. +49 2381/9452-0 - FAX -100 - www.microsens.com
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IEEE 802.3 10Base-T Ethernet
IEEE 802.3u 100Base-TX Fast Ethernet
IEEE802.3x Flow Control and Back Pressure
Back-plane (Switching Fabric): 1.6Gbps
IEEE 802.3x Flow Control and Back Pressure
8x RJ-45 10/100Base-TX
Auto-negotiation and MDI/MDI-X auto-crossing
at all ports
UTP/STP min. Cat.5e cable
EIA/TIA-568 10-ohm (100m)
Per unit:
PW1, PW2, RLY (relay)
Per port:
Link/activity
Reverse polarity protection
Overload current protection
12-56 VDC redundant power input
Relay outputs with current carrying capacity of 1
A @24VDC,
Relay in short circuit mode when two power are
connected. In open circuit mode when only one
power supply is connected.

MICROSENS GmbH & Co. KG – Küferstr. 16 - 59067 Hamm / Germany - Tel. +49 2381/9452-0 - FAX -100 - www.microsens.com
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6-pin terminal block
2x redundant power, alarm relay
Wire range: 0.34mm^2 to 2.5mm^2
Solid wire (AWG):12-24/14-22
Stranded wire (AWG): 12-24/14-22
Torque:5lb-In/0.5Nm/0.56Nm
Wire Strip length: 7-8mm
-40℃ to 75℃ fully tested.
5% to 95% (Non-condensing)
Rugged metal, IP30 protection
36.2 x 105 x 142 mm (w x d x h)
DIN-rail mounting and wall mounting