Digitus DN-652120 User manual

Gigabit Industrial PoE
Switch 2 x RJ45, 1x SFP
Quick Installation Guide
DN-652120

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Table of contents
1. Overview.................................................................................2
2. Main Features .........................................................................3
3. Package content......................................................................3
4. Switch Panel............................................................................4
5. Specification............................................................................5
6. Interface Definition .................................................................7
7. LED Indicator ...........................................................................8
8. Installation caution..................................................................9
1. Overview
Industrial PoE Ethernet switch with 2-Port 10/100/1000Mbps
RJ45(PoE) +1 Port 1000Mbps SFP, the Product meet CE, RoHS
standards. DN-652120 switch has the operating temperature
of -40℃~80℃, has the super firmness can adapt to all kinds
of harsh environment, can also be conveniently placed in the
compact space of the control box. The installation
characteristics of the guide rail, wide temperature operation,
IP40 protection class housing and LED indicator light make the
DN-652120 a plug and play industrial grade device, providing
a reliable and convenient solution for users to network their
Ethernet devices.

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2. Main Features
•The use of high quality photoelectric integration module
to provide good optical and electrical characteristics
•Ensure reliable data transmission and long working life
•Support full duplex or half duplex mode, with automatic
negotiation capability
•Network port support automatic cross identification
•Internal storage and forwarding mechanism, support a
variety of protocols
•In line with industrial operating standards, the average
trouble-free work in more than 300,000 hours
•Working power supply: DC 48-57V to provide reverse
protection
•Lightning Surge Protection (Power): 5000A(8/20μs)
3. Package content
•Industrial Switch 2 x RJ45 1 x SFP
•QIG

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4. Switch Panel
DN-652120 Side panel: P1 and P2 are the number of
connecting terminals, P+1 and P-1 are respectively to the
positive and negative poles to be connected; Earthing screw,
used for earthing equipment.
DN-652120 Front panel: The yellow light on the port is the
LINK light, which is on when the connection is established,
and the data transmission is flashing. The green light is PoE
light, which is only on when the switch port is supplying
power to the PD devices. Power indicator light is on when
connecting with Power.

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Switch size（mm）
5. Specification
5.1 Standard:
IEEE802.310 BASE-TIEEE 802.3i
10 Base-T; IEEE802.3u; 100Base-TX / FX;
IEEE802.3ab1000Base-T;
IEEE802.3z1000Base-X; IEEE802.3x; IEEE802.3af, IEEE802.3at
5.2 Interface:
2-Port 10/100/1000Mbps RJ45(PoE) +
1 Port 1000Mbps SFP Industrial Switch
5.3 Work environment:
Operating temperature: -40～80 °C
Storage temperature: -40～80 °C
5.4 Switch:
Bandwidth: 14Gbps
Packet Buffer Memory: 1.2Mbit

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Packet Forwarding Rate: 10.5Mpps
MAC Address Table: 2K
5.5 Power supply:
input voltage: DC48-57V (two-way power redundancy
backup);
Access terminal: Phoenix terminal; Support dual power
redundancy; Support built-in over current 4.0A protection;
Support reverse connection protection
5.6 Mechanical characteristic:
IP40 aluminum housing
DIN rail install,
Natural cooling (No fan)
Weight: 0.42Kgs.
Measurement: 128 x 86 x 34 mm
5.7 Industrial standard:
IEC61000-4-2 (ESD): ±8kV (contact), ±12kV (air)
IEC61000-4-3 (RS): 10V/m (80~1000MHz)
IEC61000-4-4 (EFT): Power Port: ±4kV; Data Port: ±2kV
IEC61000-4-5 (Surge): Power Port: ±2kV/DM, ±4kV/CM; Data
Port: ±2kV
IEC61000-4-6 (CS): 3V (10kHz-150kHz); 10V (150kHz-80MHz)
IEC61000-4-16 (Common mode conduction): 30V (cont.),
300V (1s)

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Frequency range：150kHz-80MHz
Impact: IEC 60068-2-27
Free Fall: IEC 60068-2-32
Vibration: IEC 60068-2-6
6. Interface Definition
10/100/1000Base-TX ethernet interface:
This series of switches provides MDI/MDI-X self-identification
with cable support on all 10/100/1000 Base-TX ports. In use,
the Ethernet port of the switch can be connected with other
Ethernet terminal devices through network cables (direct or
cross). Please use Class 5 shielded twisted pair. The Ethernet
port pin definition is shown in the following figure:
RJ45 port supports automatic MDI/MDI-X operation, you can
use a straight line to connect to the PC or server, connect to
other switches or hubs. In the through line (MDI), pins 1, 2, 3,
4, 5, 6, 7, 8 correspond to the connection; For the MDI-X port
of a switch or hub, cross lines are used: 1-3, 2-6, 3-1, 6-2, 4-7,
5-8, 7-4, 8-5.1000Base-T (X) pins are defined as follows:

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Pin No.
MDI signal
MDI-X-signal
1
TX+
RX+
2
TX-
RX-
3
RX+
TX+
6
RX-
TX-
4, 5, 7, 8
-
-
Note: "Tx ±" refers to sent data ±, "Rx ±" refers to received
data ±, and "-" refers to unused data.
7. LED Indicator
LED
indicator Status Definition
Power
Red LED on
Power supplying in normal
Red LED off
Power supply abnormal or
no powering
RJ45
indicator
Yellow LED on
Network connection in
normal
Yellow LED
flashing
Link communication in
normal
Green LED on
PoE feeding in normal
Yellow/Green
LED off No connection at port

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LINK
Green flashing
Optical work in normal
8. Installation caution
8.1 Installation precautions
In order to avoid damage to equipment and personal injury
caused by improper use, please follow the following
precautions:
•In order to avoid damage caused by falling of the
equipment, please put the equipment in a stable
environment
•When supplying power to the equipment, pay attention to
confirm the range of power supply voltage, as well as the
positive and negative poles of the power supply, so as not
to damage the equipment by wrong operation
•In order to reduce the risk of electric shock, ensure that
the equipment is well grounded in the working
environment
•No matter when, please do not arbitrarily remove the
equipment shell
•When placing the switch, please avoid the area with dust
and strong electromagnetic interference

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8.2 Din rail installation:
The first step is to check the grounding and
stability of the guide rail: the guide rail slot of the
switch is clamped into the guide rail.
The second step: from the center to both sides
of the guide rail positioning screws in order.
Step 3: Use screws to fix the mounting rail card slot on the
fixed guide groove at both ends of the guide rail to ensure
that the guide rail and the switch are fixed on the guide rail
vertically and stably.
8.3 grounding
Fix the grounding wire to the grounding screw above the
switch and ensure good reliable connection of the grounding
system.
8.4 Power Connection
Insert the power cord into the specified position of the 6-
core terminal and insert the terminal into the standard
power supply inlet (P+1 and P-1 input corresponding to the

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first power supply P1, and P+2 and P-2 input corresponding
to the second power supply P2). The available voltage
standard of the power supply is supported from 48VDC to
57VDC.

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Disclaimer
This is a Class A product. In home environment, this product may
cause radio interference. In this case, the user may be required to
take appropriate measures.
Hereby Assmann Electronic GmbH, declares that the Declaration of
Conformity is part of the shipping content. If the Declaration of
Conformity is missing, you can request it by post under the below
mentioned manufacturer address.
www.assmann.com
Assmann Electronic GmbH
Auf dem Schüffel 3
58513 Lüdenscheid
Germany