Industrial Ethernet Switch - FL SWITCH SFN 4TX/FX

Ethernet switch, 4 TP RJ45 ports, 1 FO port, 100 Mbps full duplex in SC-D format, automatic detection of data transmission speed of 10 or 100 Mbps (RJ45), autocrossing function

Product Details

Width 30 mm
Height 120 mm
Depth 70 mm

Housing material Aluminum

Mounting type DIN rail mounting

Ethernet (RJ45)
Number of interfaces 4
Connection method RJ45
Note on the connection method Auto negotiation and autocrossing
Transmission speed 10/100 Mbps
Transmission physics Ethernet in RJ45 twisted pair
Transmission length 100 m (per segment)
Signal LEDs Data receive, link status
No. of channels 4 (RJ45 ports)
Fiber optic interface
Number of interfaces 1
Connection method SC
Transmission speed 100 Mbps (full duplex)
Transmission physics multi-mode fiberglass
Transmission length 2000 m (Fiberglass 50/125)
2000 m (Fiberglass 62.5/125)
Wavelength 1300 nm
No. of channels 1 (SC multi-mode)

Type Block design
Product type Switch
MTTF 193 Years (MIL-HDBK-217F standard, temperature 25°C, operating cycle 100%)
Insulation characteristics
Protection class III (IEC 61140, EN 61140, VDE 0140-1)
Switch functions
Basic functions Unmanaged switch / auto negotiation, complies with IEEE 802.3, store and forward switching mode
Status and diagnostic indicators LEDs: US, link and activity per port
Additional functions Autonegotiation
Security functions
Basic functions Unmanaged switch / auto negotiation, complies with IEEE 802.3, store and forward switching mode

Local diagnostics US Supply voltage Green LED
LNK/ACT Link status/data transmission Green LED
100 Data transmission speed Yellow LED
Maximum power dissipation for nominal condition 3.36 W
Test section 500 V DC 1 min.
Transmission medium Copper
Supply voltage (DC) 24 V DC
Supply voltage range 9 V DC ... 32 V DC
Residual ripple 3.6 VPP (within the permitted voltage range)
Typical current consumption 140 mA (at US = 24 V DC)

Connection method Screw connection
Conductor cross section, rigid 0.2 mm² ... 2.5 mm²
Conductor cross section, flexible 0.2 mm² ... 2.5 mm²
Conductor cross section AWG 24 ... 12
Stripping length 7 mm

Degree of protection IP20
Ambient temperature (operation) 0 °C ... 60 °C
Ambient temperature (storage/transport) -20 °C ... 70 °C
Permissible humidity (operation) 5 % ... 95 % (non-condensing)
Permissible humidity (storage/transport) 5 % ... 95 % (non-condensing)
Vibration (operation) in acc. with IEC 60068-2-6: 5g, 150 Hz
Air pressure (operation) 86 kPa ... 108 kPa (up to 1500 m above sea level)
Air pressure (storage/transport) 66 kPa ... 108 kPa (up to 3500 m above sea level)
Resistance to gases that may endanger the functions, in acc. with DIN 40046-36, DIN 40046-37 Sulfur dioxide (SO2) 10 ±0.3 cm3/m3, hydrogen sulfide (H2S) 1 ±0.3 cm3/m3, at 25°C and 75% humidity and exposure of four days

Electromagnetic compatibility Conformance with EMC Directive 2004/108/EC
Noise emission EN 61000-6-4
Noise immunity EN 61000-6-2:2005

Status display LEDs: US, link and activity per port

Item number 2891851
Packing unit 1 pc
Minimum order quantity 1 pc
Product Key DNN113
Catalog Page Page 291 (C-6-2019)
GTIN 4046356100809
Weight per Piece (including packing) 410.4 g
Weight per Piece (excluding packing) 265 g
Customs tariff number 85176200
Country of origin TW


ECLASS-9.0 19170106
ECLASS-10.0.1 19170402
ECLASS-11.0 19170402


ETIM 8.0 EC000734


UNSPSC 21.0 43222600


Approval ID: RU*-DE.*.B.00741/19

UL Listed

Approval ID: FILE E 140324

cUL Listed

Approval ID: FILE E 140324


Approval ID: KCC-REI-PCK-FL289185

cUL Listed

Approval ID: FILE E 199827

UL Listed

Approval ID: FILE E 199827

cULus Listed

cULus Listed

REACh SVHC Lead 7439-92-1
China RoHS Environmentally Friendly Use Period = 10;
For information on hazardous substances, refer to the manufacturer’s declaration available under “Downloads”

Your advantages

RJ45 ports support a transmission speed of 10/100 Mbps
Fiber-optic ports support 100 Mbps
QoS-prioritized (Quality of Service) messages
The switch also offers cable locking and port blocking
Local diagnostic indicators with LEDs
Auto negotiation and autocrossing detection simplifies installation and setup