2891453 Phoenix Contact, 2891453 Datasheet - Page 9

• Manufacturer Part Number: 2891453
• Description: SWITCH ETHERNET 4/RJ45-ST F/OPT
• Manufacturer: Phoenix Contact
• Type: Ethernetr

Specifications of 2891453

• Features: 4 Ports
• Product: Switches
• Usoc Codes: RJ45
• Number Of Ports: 4, 1
• Gender: Female
• Shielding: Shielded
• Current Rating: 140 mA
• Voltage Rating: 24 V
• Housing Material: Aluminum
• Contact Material: Copper Alloy
• Contact Type: RJ45, Fiber Optic
• Number Of Rows: 1
• Operating Temperature Range: 0 C to + 60 C
• Brand/series: SFN Series
• Phoenix Part Number: FL SWITCH SFN 4TX/FX ST
• Primary Type: Switch
• Protocol Type: Ethernet
• Special Features: Auto Negotiation, Auto Crossing, Store and Forward
• Transmission Speed: 10/100 MBit/s
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EMI, noise immunity can be increased by an additional low-
impedance connection to functional earth ground.
Figure 3
Figure 4
2732_en_A
US1
+
–
FL SWITCH SFN…TX… power connection
FL SWITCH SFN…GT… power connections
for single power supply
GND
US
+
GND
US2
–
GND
R1
R2
Figure 5
Use power conductors between 0.2 - 2.5 mm²
(24 - 12 AWG). Torque connection screws to 0.5 - 0.6 Nm
(5 - 7 lb-in.).
6.4
The FL SWITCH SFN… switch provides contacts (R1, R2)
for remote alarms if a failure is detected.
–
–
The maximum current, including inrush, is 100 A.
6.5
The FL SWITCH SFN… has five Ethernet ports on the front
in RJ45 format to which only twisted-pair cables with an
impedance of 100
transmission speed is 10/100 Mbps. In addition, every port
The contact closes if one or both power supplies fail.
The contact opens if power is OK.
US1
Alarm Contact
Ethernet Interface
+
FL SWITCH SFN…GT… power connections
for redundant power supply
GND
–
US2
can be connected. The data
+
GND
–
R1
PHOENIX CONTACT
FL SWITCH SFN…
R2
9