Unmanaged Ethernet Switches Provide Unique Security and Port Options with Installed Cost Savings


Phoenix Contact announces a major expansion to its standard function (SF) unmanaged switch line. New SFN (narrow) switches use third-generation switch technology to lower installed costs between 20 and 70 percent compared with current market offerings. The new SFN 5- and 8-port switches provide low-cost, fully industrially hardened, entry-level switch functions with five or eight ports (10/100 Mbps) in a narrow housing width. These include a complete range of 100Mbps glass fiber configurations which support SC or ST style connectors. Each SFN switch includes the unique ability to add optional security frames that can be used to block unused RJ45 ports and lock in existing cables. This “physical layer 1” security restricts network access by unauthorized personnel, and yet is easy for plant floor personnel to implement. For added performance in times of heavy network traffic, all SFN switches have the ability to read “Quality of Service” prioritized messages and process critical control messages before normal priority messages. The new SFN switches, combined with the current SF switches, provide the widest breadth of cost-effective Ethernet available today.


• Interface Ethernet (RJ45) • No. of ports 6 RJ45 ports • Type of connection RJ45 socket, autonegotiation and autocrossing • Transmission physics Ethernet in RJ45 twisted pair • Transmission speed 10/100 MBit/s (RJ45) • Interface Fiber optic interface • No. of ports 2 FO ports • Type of connection SC-Duplex • Transmission physics Multimode glass fiber • Transmission speed 100 MBit/s (SC-D, full duplex) • Transmission length 2000 m (Glass fiber 50/125) • 2000 m (Glass fiber 62.5/125) • Function • Basic functionality Unmanaged switch / autonegotiation, complies with IEEE 802.3, store and forward switching mode, no flow control • Status and diagnostics displays LEDs: US, link and activity per port • Network extension parameters • Cascading depth Network, line and star structure: any • Maximum conductor length ((twisted pair) 100 m • Supply voltage • Supply voltage 24 V DC • Residual ripple 3.6 VPP (within the permitted voltage range) • Range of supply voltages 18.5 V DC ... 30.2 V DC • Typical current consumption Typ. 230 mA • General data • Weight 365 g • Width 50 mm • Height 120 mm • Depth 70 mm • Degree of protection IP20 in acc. with DIN 40050/IEC 60529 • Ambient temperature (operation) 0 °C ... 60 °C • Ambient temperature (storage/transport) -20 °C ... 70 °C • Permissible humidity (operation) 5 % ... 95 % (non-condensing) • Housing material Aluminum • Electromagnetic compatibility Conformance with EMC directive 89/336/EEC • Emitted interference EN 61000-6-4 • Immunity to interference EN 61000-6-2:2005 • Conformity with EMC directives • Developed in acc. with standard IEC 61000-6.2 • Test standard IEC 61000-4-2 (ESD) • Test result Criterion B • Test standard IEC 61000-4-3 (immunity to radiated interference) • Test result Criterion A • Test standard IEC 61000-4-4 (burst) • Test result Criterion B • Test standard IEC 61000-4-5 (surge) • Test result Criterion B • Test standard IEC 61000-4-6 (immunity to conducted interference) • Test result Criterion A • Test standard IEC 61000-4-8 (immunity to magnetic fields) • Test result Criterion A • Test standard EN 55022 (emitted interference) • Test result Criterion A
Be the first to review this product
Add your review: