• The voltage/power supply shall be connected to a 6-pole screw terminal at the back of the network switch;
the alarm connector is also located there.
The voltage/power supply to the network switch is designed redundant. This means that it
automatically and immediately switches to the alternative voltage/power supply, if the initial
voltage/power supply fails.
If you do not want to connect two separate voltage/power supplies, then one is equally sufficient
for operating.
Terminal clamps “PW1”:
Connect the first external voltage/power supply here. It needs to provide a
stabilised direct current of 12 - 48 V/DC and an electric current of 1 A. Always be aware of the correct polarity
(plus/+ and minus/ -).
Terminal clamps “PW2”:
If available, connect the second external voltage/power supply here. It needs to
provide a stabilised direct current of 12 - 48 V/DC and an electric current of 1 A. Always be aware of the
correct polarity (plus/+ and minus/ -).
Terminal clamps “Alm”:
Both terminal clamps are connected free of potential with an internal relay. The
connection is made if an alert is triggered by the network switch (e.g. during failure of one of the two voltage/
power supplies or during disruption of one of the 8 network connections).
The relay switch contact may only be exposed to a direct current of 24 V/DC and an electric current of 1 A
maximum.
Earth connection:
The screw contact marked with an earth symbol (next to the 6 screw terminals) is
available for connection to the electrical grounding. Connect it to the electrical grounding of the electrical
control cabinet in which the network switch is installed.
DIP switch for alert function:
If the DIP switch “power” (switch 9) has been placed in the “ON” position, the
relay is activated for the alarm connector if one of the two voltage/power supplies fails. To allow this function
to operate properly, two voltage/power supplies need to be connected to the network switch.
DIP switches “1” to “8” belong to the 8 network ports on the front. If the respective DIP switch is in the “ON”
position, the alarm connector relay is activated when the respective network connection is disrupted (e.g.
by pulling the network plug).
Only move the respective switch into the “ON” position, if the corresponding network port is
really in use; otherwise the relay may be permanently activated for the alarm connector.
• After all connections and settings are complete, place the network switch on the DIN rail and secure it
in place.
The DIN rail has to comply with EN 55022 (overall width 3.5 cm, overall height 0.75 cm). The network
switch may not be installed on any other mounting rails!
• Connect the RJ45 sockets with suitable network cables to your devices and computers.
Each of the 8 network ports supports auto uplink, which means that no expensive crosslink cables are
necessary to connect multiple network switches.
Make sure the cables are not bent or crushed.
We recommend marking the network cables with suitable adhesive labels or other devices. This will allow
you in case of a fault to know perfectly which connections need to be checked.
• Switch on the voltage/power supply.
• The green LEDs “PWR1” and “2” light up, if the respective voltage/power supply is working properly.
The red LED “Alm” lights up, if one of the two voltage/power supplies has failed or disruption has been
detected at one of the network ports.
The respective DIP switch needs to be in the correct position for this, see above.
The LEDs in the RJ45 sockets show the LINK status (network connection working properly, LED lights up
green permanently) or a data transfer in progress (LED flashes green); a yellow flashing LED shows a 100
Mbit connection (yellow LED disappears at 10 Mbit).
Care and cleaning
• Disconnect the product from the power supply before cleaning.
• Do not use any aggressive cleaning agents, rubbing alcohol or other chemical solutions as they can cause
damage to the housing and malfunctioning.
•
Clean the product with a dry, fiber-free cloth.
• Do not immerse the product in water.
Disposal
Electronic devices are recyclable waste and must not be disposed of in the household waste. At
the end of its service life, dispose of the product according to the relevant statutory regulations.
You thus fulfil your statutory obligations and contribute to the protection of the environment.
Technical data
Operating voltage .............................................. 12 – 48 V/DC
Power supply ..................................................... 8 W at 24 V/DC
Network ports .................................................... 8 ports for 10/100 MBit
Auto Uplink (Auto MDI) ...................................... yes
Operating conditions .......................................... -10 to +70 °C, 0 - 95 % RH (non-condensing)
Storage conditions ............................................. -20 to +85 °C, 5 - 90 % RH (non-condensing)
Dimensions (W x H x D)
....................................
55 x 120 x 108 mm
Weight ............................................................... 525 g
For further information refer to the manufacturer’s instructions.
Operating instructions
8-Port Network Switch for DIN rail
Item no. 1668009
Intended use
The network switch is intended for cable-based networking of computers or other devices suitable for the
purpose. 8 twisted-pair connections (RJ45) are available. It is installed on a commercially available DIN rail
according to EN 55022.
It is intended for indoor use only. Do not use it outdoors. Contact with moisture, e.g. in bathrooms, must be
avoided under all circumstances.
For safety and approval purposes, you must not rebuild and/or modify this product. If you use the product
for purposes other than those described above, the product may be damaged. In addition, improper use can
cause hazards such as short circuiting, fire etc. Read the instructions carefully and keep them. Make this
product available to third parties only together with its operating instructions.
This product complies with the statutory national and European requirements. All company names and
product names are trademarks of their respective owners. All rights reserved.
Delivery content
• Network switch
• Manufacturer’s instructions (in English)
• Operating instructions
Latest operating instructions
Download the latest operating instructions via the link www.conrad.com/downloads or scan the QR code
shown. Follow the instructions on the website.
Explanation of symbols
The lightning symbol inside a triangle is used when there is a potential risk of personal injury,
such as electric shock.
An exclamation mark in a triangle indicates important instructions in this operating manual that
absolutely have to be observed.
The arrow symbol indicates specific tips and advice on operation.
Safety instructions
Read the operating instructions carefully and especially observe the safety information.
If you do not follow the safety instructions and information on proper handling in this
manual, we assume no liability for any resulting personal injury or damage to property.
Such cases will invalidate the warranty/guarantee.
• The device is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. This may become dangerous playing
material for children.
•
Protect the product from extreme temperatures, direct sunlight, strong jolts, high humidity,
moisture, flammable gases, vapours and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, take it out of operation and protect it
from any accidental use. Safe operation can no longer be guaranteed if the product:
- is visibly damaged,
- is no longer working properly,
-
has been stored for extended periods in poor ambient conditions or
- has been subjected to any serious transport-related stresses.
• Please handle the product carefully. Jolts, impacts or a fall even from a low height can damage
the product.
• Also observe the safety and operating instructions of any other devices which are connected
to the product.
•
Two separate connections redundantly supply the product with power. It requires two external
mains adaptors (not included in the delivery), which provide a stabilised direct current of
12 - 48 V/DC each.
•
Consult an expert when in doubt about operation, safety or connection of the device.
•
Maintenance, modifications and repairs are to be performed exclusively by an expert or at a
qualified shop.
• If you have questions which remain unanswered by these operating instructions, contact our
technical support service or other technical personnel.
Installation and Connection
If the network switch is installed in an electrical control cabinet with dangerous voltages, do
not carry out the connection and installation by yourself, but leave it to a qualified specialist
(e.g. electrician), who is familiar with the regulations and safety precautions.
Otherwise, there is a risk of a life-threatening electric shock!
Only connect and install the network switch, when it is disconnected from the mains voltage.
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in
electronic data processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited.
This publication represent the technical status at the time of printing.
Copyright 2018 by Conrad Electronic SE.
*1668009_V1_0318_02_mxs_m_en