Extreme Networks AL1905A3F-E6 ERS 4926GTS-PWR+ Ethernet Routing Switch

Technical SpecificationsModel：AL1905A3F-E6 Brand：Extreme Networks (Legacy Avaya) Product Type: 1U rack mount managed stackable enterprise Layer3 PoE+ access switch

Front Ports:

• 24 × 10/100/1000BASE-T RJ45 gigabit PoE+ ports (IEEE802.3af / 802.3at)

• 4 × SFP uplink slots for 1G fiber transceivers

• RJ45 serial console port, reset button

• Per-port LED indicators and system health LED

Switch Fabric: 128 Gbps Forwarding Rate: 95 Mpps Max Jumbo Frame: 9216 bytes VLAN: Up to 4094 active 802.1Q tagged VLANs Routing: Static routing, RIP, OSPF, PIM multicast routing QoS: L2-L4 hardware classification, 8 priority queues per port PoE Capacity: Integrated high power PoE+ budget for wireless AP, IP phones and surveillance cameras Power Supply: Built-in AC power supply, support external RPS redundant power Software OS: ERS4900 firmware Operating temperature：0℃ ~ +50℃ Weight: Approx 5.3 kg Mounting: Standard 19-inch 1U rack bracket

System compatibility

AL1905A3F-E6 belongs to ERS4900 stackable family. Multiple ERS4900 switches can form a unified logical stack, maximum stack group of 8 units. Compatible with 1G SFP optical transceivers. Designed for high-density campus wiring closet PoE access deployment.

Function

AL1905A3F-E6 is high-performance 24-port PoE+ stackable Layer3 gigabit switch of ERS4900 series. 24 PoE+ copper ports provide data and power for wireless access points, VOIP phones and security cameras. Four SFP uplink slots deliver flexible 1G fiber uplink to aggregation layer. High switch fabric bandwidth ensures wire-speed forwarding under full port load. It supports 802.1X port authentication, ACL security filtering, broadcast storm control and IGMP multicast. External RPS interface supports backup power to eliminate single point of power failure. Widely deployed for university campus, large office building and hospital PoE wired access network.

InstallationMount switch into standard 19-inch rack. Connect AC power cord. Insert 1G SFP transceivers for fiber uplink as required. Deploy stacking cable if multi-unit stacking needed. Access console port for initial configuration, set VLAN, PoE profile, routing and security policy. Verify port status and stack synchronization after power-up.

Interface24 PoE GE RJ45 ports,4 × SFP uplink slots,RJ45 console port,reset button,RPS connector and LED indicators for Extreme Networks AL1905A3F-E6.

FeatureOriginal Extreme Networks AL1905A3F-E6 ERS4926GTS-PWR+ gigabit PoE+ switch,24×1G PoE+ ports +4 SFP uplink,high bandwidth stackable architecture,hardware L2/L3 forwarding,802.3af/at PoE+,hardware QoS and 802.1X security support. This spare switch is used for enterprise high-performance PoE wiring closet network maintenance and replacement.

DiagnosticSwitch boot failure: Check AC power input, inspect power circuit and RPS connection. PoE port no power: Verify PoE power budget, check cable quality and terminal compatibility. SFP port link down: Confirm SFP transceiver compatibility, clean fiber connector and check optical power readings. Stack split: Check stacking cable integrity, match firmware version of all stack members. Broadcast storm: Tune storm-control parameters and QoS queue scheduling.

Product BriefAL1905A3F-E6 is Extreme ERS4900 series 1U 24-port gigabit PoE+ stackable Layer3 switch,classic spare for high-density enterprise campus PoE access network.

DisclaimerAll parameters are for reference only and shall not be used as the basis for quotation. Goods are scarce, overseas delivery lead time is 3-7 working days. It is only used for equipment maintenance and replacement.