English
Français
Deutsch
Português
Español
русский 
한국어
العربية
Italiano
Indonesia
Schweiz
Polski
Nederlands
ישראל - עברית
Perzisch
ไทย
日本語
ኢትዮ-አማርኛ
Việt Nam
Kiswahili
Srpski
Ελληνικά
简体中文
Phoenix (discontinued) FL SWITCH SFNB 4TX/FX SM20 (2891029) Industrial Ethernet Switch
Brand:
Series:
SFNB
Ethernet Interface:
4 RJ45 ports, 10/100Mbps
Fiber Optic Interface:
1 SC single mode, 100Mbps (full duplex)
Supply Voltage:
24VDC
Product Type:
Unmanaged switches
Model:
(Discontinued)FL SWITCH SFNB 4TX/FX SM20(2891029)
Order Number:
2891029
Description:
24VDC, fiber interface 1 SC single mode, 100Mbps (full duplex), Ethernet interface 4 RJ45 ports, 10/100Mbps, unmanaged switch
Product parameters
| Product attributes | Attribute value | Filter product attributes |
|---|---|---|
| Brand： | Phoenix | |
| Series： | SFNB | |
| Ethernet Interface： | 4 RJ45 ports, 10/100Mbps | |
| Fiber Optic Interface： | 1 SC single mode, 100Mbps (full duplex) | |
| Supply Voltage： | 24VDC | |
| Product Type： | Unmanaged switches |
Products with the same attribute : 0
Show details
Series Overview
Series Overview
SFNB Overview
Unmanaged switches are extremely reliable and easy to maintain, suitable for low-cost and reliable Ethernet networks.
For long-distance or high-interference application scenarios, various types of products with fiber optic interfaces are provided for your choice. You can choose switches that have both electrical ports and SC or ST fiber optic interfaces.
The SFNB series switches are cost-effective switches suitable for simple applications. Products with 5 ports or 8 ports are provided, and products with fiber optic interfaces can also be selected, suitable for small machines with basic Ethernet functions and monitoring applications.
Features:
- Basic status display LEDs
- Cable locking and port locking accessories can be installed on the switch
Advantages:
- Speed auto-negotiation and port auto-crossing technology make network creation and expansion easier
- Optional gigabit products are suitable for large-traffic data transmission
- Electrical isolation technology and optional fiber optic output function enable trouble-free operation in industrial environments
Dimensions
| Specification | Value |
|---|---|
| Width | 28 mm |
| Height | 110 mm |
| Depth | 70 mm |
Environmental Conditions
| Specification | Details |
|---|---|
| Protection Class | IP20 |
| Ambient Temperature (Operation) | -10 °C... 60 °C |
| Ambient Temperature (Storage/Transport) | -20 °C... 85 °C |
| Humidity Allowed (Operation) | 5 %... 95 % (No Condensation) |
| Humidity Allowed (Storage/Transport) | 5 %... 95 % (No Condensation) |
| Air Pressure (Operation) | 86 kPa... 108 kPa (Up to 1500 Meters Above Sea Level) |
| Air Pressure (Storage/Transport) | 66 kPa... 108 kPa (Up to 3500 Meters Above Sea Level) |
Interfaces
| Interface Specification | Details |
|---|---|
| Interface | Ethernet (RJ45) |
| Number of Ports | 5 (RJ45 Ports) |
| Precautions for Connection Method | Auto-negotiation and Auto-crossing |
| Transmission Medium | Ethernet RJ45 Twisted Pair |
| Transmission Speed | 10/100 MBit/s |
| Transmission Length | 100 m (Per Segment) |
| Signal LED | Data Reception, Link Status |
Functions
| Function Specification | Details |
|---|---|
| Basic Functions | Unmanaged Switch/Auto-negotiation, Comply with IEEE802.3, Store and Forward Switching Mode |
| Other Functions | Autonegotiation |
| MAC Address Table | 1k |
| Diagnostic and Status Indicators | LED: Uₛ, Link and Activity of Each Port |
Network Expansion Parameters
| Parameter Specification | Details |
|---|---|
| Topology | Network, Star, and Bus Structures: Any |
| Maximum Cable Length (Twisted Pair) | 100 m |
Power Supply Voltage
| Voltage Specification | Details |
|---|---|
| Power Supply Voltage | 24 V DC |
| Ripple | 3.6 Vpp (Within Allowable Voltage Range) |
| Power Supply Voltage Range | 12 V DC... 48 V DC |
| Typical Current Consumption | 185 mA (Uₛ = 24 V DC) |
| Maximum Current Consumption | 345 mA (For 12 V DC) |
Overview
| Specification | Details |
|---|---|
| Mounting Type | DIN Rail |
| Type AX | Terminal Block Design |
| Net Weight | 263.4 g |
| Housing Material | Aluminum |
| MTTF | 112.7 years (MIL-HDBK-217F standard, temperature 25°C, duty cycle 100%) |
Standards and Specifications
| Specification | Details |
|---|---|
| Electromagnetic Compatibility | Comply with EMC Directive 2004/108/EC |
| Emission Interference | EN 61000-6-4 |
| Immunity to Interference | EN 61000-6-2 |
| UL, USA/Canada | Class 1, Div. 2, Groups A, B, C, D |
Rachel
Industrial Control Sales Specialist: Focuses on delivering high-performance, cost-effective industrial control products. Offers end-to-end one-stop procurement support—covering rapid quotation, streamlined order fulfillment, and responsive after-sales service—to simplify clients’ procurement processes.
Email: Anthony@icxsg.com
We offer competitive product pricing. For fast support, send your email, phone, address, and the product model & quantity you want—we’ll reach out quickly!
We typically respond via email within one business day! You can also contact us at Anthony@icxsg.com
