IFM AL3151 User manual

Operating instructions
Ethernet switch
AL3151
11392995 / 0004 / 2021
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AL3151 Ethernet switch
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Contents
1 Preliminary note.............................................................. 3
1.1 Symbols used........................................................... 3
1.2 Change history.......................................................... 3
2 Safety instructions............................................................ 4
3 Intended use ................................................................ 5
4 Function.................................................................... 6
4.1 Switch ................................................................ 6
4.2 Ethernet ports........................................................... 6
4.3 Voltage output .......................................................... 6
5 Installation .................................................................. 7
5.1 Install device............................................................ 7
6 Electrical connection .......................................................... 8
6.1 Overview .............................................................. 8
6.2 General wiring information................................................. 8
6.2.1 Cabling ............................................................ 8
6.3 Ethernet............................................................... 8
6.4 Voltage output .......................................................... 9
6.5 Ground connection....................................................... 9
6.6 Voltage supply.......................................................... 10
7 Operating and display elements.................................................. 11
7.1 LEDs ................................................................. 11
7.1.1 Voltage supply....................................................... 11
7.1.2 Ethernet ........................................................... 11
8 Set-up...................................................................... 12
9 Maintenance, repair and disposal ................................................ 13
9.1 Cleaning the housing surface............................................... 13

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1 Preliminary note
You will find instructions, technical data, approvals and further information using the QR code on the
unit / packaging or at www.ifm.com.
1.1 Symbols used
Requirement
Instructions
Reaction, result
[...] Designation of keys, buttons or indications
Cross-reference
Important note
Non-compliance may result in malfunction or interference.
Information
Supplementary note
1.2 Change history
Version Subject Date
00 New creation of the document 04 / 2021
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2 Safety instructions
• The unit described is a subcomponent for integration into a system.
– The system architect is responsible for the safety of the system.
– The system creator undertakes to perform a risk assessment and to create documentation in
accordance with legal and normative requirements to be provided to the operator and user of
the system. This documentation must contain all necessary information and safety instructions
for the operator, the user and, if applicable, for any service personnel authorised by the
architect of the system.
• Read this document before setting up the product and keep it during the entire service life.
• The product must be suitable for the corresponding applications and environmental conditions
without any restrictions.
• Only use the product for its intended purpose (Ò Intended use).
• If the operating instructions or the technical data are not adhered to, personal injury and/or damage
to property may occur.
• The manufacturer assumes no liability or warranty for any consequences caused by tampering with
the product or incorrect use by the operator.
• Installation, electrical connection, set-up, operation and maintenance of the product must be
carried out by qualified personnel authorised by the machine operator.
• Protect units and cables against damage.

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3 Intended use
The device is used for networking of up to 6 Ethernet devices.
The device is designed for use in Ethernet networks.
The device is designed for use without a control cabinet in the food industry.
The device is designed for the use in vehicles.
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4 Function
4.1 Switch
• Type: not configurable (unmanaged)
• Operating mode: store and forward
• Forwarding of the following DCP functions:
– Search queries
– Signalling (flashing)
– Set IP address
– Set device name
– Reset device
• MAC address table
– Capacitance: 2000 entries
– MAC Aging Time: 200...400s
• Quality of Service (IEEE 802.1p, IEEE 802.1Q)
– Priority queues: 4
4.2 Ethernet ports
• Supported transmission standards:
– 10Base-T (IEEE 802.3i)
– 100Base-TX (IEEE 802.3u)
• Auto negotiation of the transmission rate (Auto Negotiation)
• Polarity detection and correction (Auto Polarity)
• Automatic detection of transmit and receive channels (Auto MDI-X)
4.3 Voltage output
The device has a port XD2 for optional supply of additional devices (daisy chain).

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5 Installation
5.1 Install device
uDisconnect the power of the machine before installation.
uUse a flat mounting surface for installation.
uPlease observe the maximum tightening torque.
uFasten the module onto the mounting surface using M5 screws and washers (tightening torque: 1.8
Nm).
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6 Electrical connection
6.1 Overview
XD1 XD2
X1
X3
X5
X2
X4
X6
XD1: Voltage supply
XD2: Voltage output
X1: Ethernet port 1
X2: Ethernet port 2
X3: Ethernet port 3
X4: Ethernet port 4
X5. Ethernet port 5
X6: Ethernet port 6
6.2 General wiring information
The device must be connected by a qualified electrician.
uObserve the national and international regulations for the installation of electrical equipment.
The device is only suitable for operation using SELV voltages.
This device contains components that may be damaged or destroyed by electrostatic discharge
(ESD).
uPlease observe the required precautions against electrostatic discharge!
The circuits are insulated from each other and from touchable surfaces of the device with basic
insulation according to EN 61010-1.
The communication interfaces are insulated from each other and from touchable surfaces of the
device with basic insulation according to EN61010-1.
6.2.1 Cabling
The M12 connection parts in the device comply with the ingress resistance requirements of the
standard EN 61076-2-101. To adhere to the protection rating, only cables certified to this standard
must be used. The system architect undertakes to ensure the ingress resistance of cables they have
cut to length.
uCarry out the fitting according to the indications of the cable manufacturer. Permissible tightening
torque: 0.6…0.8 Nm.
uDuring installation, place the M12 connector vertically so that the coupling nut will not damage the
thread.
uProvide cables with a strain relief depending on the mounting conditions to avoid excessive strain
on the installation points and the M12 connections.
uEnsure correct fit and proper assembly of the M12 connection parts.
uCover unused ports with M12 protective caps (art. no.: E12542).
6.3 Ethernet
The Ethernet devices are connected via the Ethernet ports.
The ports can be used by the Ethernet devices as required.
uConnect Ethernet devices to the ports X1...X6.

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uFor connection, use M12 connectors (with at least protection rating: IP 65 / IP 66 / IP 67 / IP 69K).
Max. cable length: 100 m.
uDo not connect the Ethernet ports of the device to each other. This causes a failure of the unit.
Wiring:
1 2
34
5
1: TX+
2: RX+
3: TX-
4: RX-
5: not used
6.4 Voltage output
The supply voltages US and UA are looped through from port power IN to power OUT. This allows
another device to be supplied via port power OUT (daisy chain).
Max. current of US and UA: 16 A each
uOptional: Connect another device to port XD2.
uFor connection, use L-coded M12 connectors (with at least protection rating: IP 65 / IP 66 / IP 67 /
IP 69K).
Wiring:
2
4 1
3
5
1: +24V DC (US)
2: GND (UA)
3: GND (US)
4: +24V DC (UA)
5: FE
uObserve the derating behaviour of the device.
0 5 10 15 20 25 30 35 40 45 50 55 60
2
4
6
8
10
12
14
16
65 70 75
Temperature [°C]
Current [A]
1
2000 m
3000 m
4000 m
Fig.1: Derating behaviour IUS-daisy-chain and IUA-daisy-chain at Port XD2
1: IUS-daisy-chain / IUA-daisy-chain
6.5 Ground connection
To ensure electrical interference protection, the intended function and safe operation of the device, it
must be connected to a mass point.
The FE potential is connected to the following points of the device:
• Upper mounting lug
• Port XD1 (pin 5)
• Port XD2 (pin 5)
uGround the unit via the mounting screw of the upper mounting lug.
uOptional: Connect pin 5 of the port XD1 / XD2 via an L-coded M12 connector with functional earth.
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Connect the device to the mass point (e.g. body, FE of the installation) using the shortest route.
6.6 Voltage supply
The device is connected to the supply voltage US via the power IN port. The supply voltage US
supplies the device with voltage.
Optionally, an additional supply voltage UA can be fed to the device via port power IN. UA is used
exclusively to supply additional devices via port power OUT (daisy chain).
The port XD1 has overvoltage protection (US).
The port XD1 has reverse polarity protection (US).
The port XD1 has cross reverse polarity protection (US, UA).
The port XD1 has an inrush current limitation.
ATTENTION
Current surge with high voltage input due to disconnection of the device from battery supply
while the engine is running
wDamage to the device
uWhen supplied by the on-board system in vehicles, do not disconnect the device from
the battery when the engine is running.
uDisconnect power.
uConnect the device via port XD1 to supply voltage US with 12 / 24VDC (8…32VSELV according
to DIN 60950).
uOptional: Connect the device via port XD1 to supply voltage UA with 12 / 24VDC (8…32V SELV
according to DIN 60950).
uFor connection, use L-coded M12 connector (with at least protection rating: IP 65 / IP 66 / IP 67 / IP
69K).
Wiring:
3
1 4
2
5
1: +24V DC (US)
2: GND (UA)
3: GND (US)
4: +24V DC (UA)
5: FE

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7 Operating and display elements
7.1 LEDs
2
3
45
6
7
1
1: US (port XD1)
2: LNK / ACT (port X2)
3: LNK / ACT (port X4)
4: LNK / ACT (port X6)
5: LNK / ACT (port X5)
6: LNK / ACT (port X3)
7: LNK / ACT (port X1)
7.1.1 Voltage supply
LED Description Colour State Description
US Voltage supply status Green off no supply voltage is applied or the applied supply
voltage is too low
on Supply voltage applied
7.1.2 Ethernet
LED Description Colour State Description
LNK /
ACT
Status Connection / Activity Green off no Ethernet connection
on Ethernet connection established
flashes Data transmission
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8 Set-up
uInstall the device correctly.
uEstablish a correct electrical connection with the device.
wOnce connected to the supply voltage, the device will start.
wThe LEDs show the status of the device.
wThe unit is ready for operation.

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9 Maintenance, repair and disposal
The operation of the unit is maintenance-free.
uDispose of the device in an environmentally friendly way in accordance with the applicable national
regulations when it is no longer used.
9.1 Cleaning the housing surface
Clean the surface of the device when necessary.
uDisconnect the device.
uClean the device from dirt using a soft, chemically untreated and dry cloth.
uIn case of severe soiling, use a damp cloth.
uDo not use any caustic cleaning agents for this!
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