Extreme Networks B2H124-48P Fast Ethernet PoE Stackable Managed Switch

Technical SpecificationsModel:B2H124-48P Brand:Extreme Networks Product Type:1U rackmount stackable Layer2/Layer3 PoE access switch Ports:48 × 10/100BASE-TX PoE RJ45 ports,4 × 1000BASE-X SFP uplink slots,2 × dedicated high-speed stacking ports PoE standard:IEEE 802.3af, total PoE power budget 360W, max 15.4W per port Switching capacity:17.6 Gbps, stack backplane up to 140.8 Gbps Forwarding rate:13.1 Mpps, stack throughput 104.8 Mpps MAC address table:16000 entries VLAN:4094 VLAN IDs Redundancy:Supports external RPS redundant power supply OS:EOS (Enterasys Operating System) Dimensions:4.4cm(H) ×44.1cm(W) ×35.44cm(D) Weight:5.3 kg Operating temperature:0℃ ~ +50℃ Storage temperature:-40℃ ~ +70℃ Relative humidity:10%~90%, non-condensing

System compatibilityB2H124-48P belongs to Extreme Networks SecureStack B2 family, formerly Enterasys. Compatible with Extreme validated 1G SFP transceivers including SX multimode and LX single-mode modules. Multiple B2-series switches can be stacked via dedicated stacking ports to form a single logical switch. Widely used for legacy enterprise campus PoE access spare replacement for wireless APs, IP phones and IP cameras.

FunctionB2H124-48P is a stackable multi-layer fast ethernet PoE managed switch. It delivers IEEE802.3af PoE power to powered network endpoints. It supports static routing, VLAN segmentation, STP/RSTP, LACP link aggregation, QoS, IGMP snooping, port mirroring and 802.1X authentication. Four independent SFP slots provide flexible gigabit fiber uplink options. It monitors port link status, PoE power consumption, module temperature and power supply health, and sends hardware fault alarms. Used for medium and large enterprise wiring closet PoE access networks.

InstallationMount the switch on standard 19-inch 1U rack. Connect AC power cord; external RPS redundant power supply is optional. Install SFP transceivers and fiber cables for uplink if required. Connect Cat5 cables to 10/100 PoE RJ45 access ports. Connect DB9 serial console port for EOS configuration. Verify boot sequence, port link status and PoE function before putting into production.

Interface48×10/100BASE-TX PoE RJ45 ports,4×1G SFP uplink slots,2×dedicated stacking ports,DB9 serial console port,system status LEDs,AC power inlet,RPS connector,ground terminal,rack mounting ears for Extreme Networks B2H124-48P.

FeatureOriginal Extreme Networks SecureStack B2 1U rackmount 48-port fast ethernet stackable PoE switch, independent 4-port SFP uplink, dedicated high-speed stacking, 360W PoE power budget, policy-based Layer3 control, external redundant power support,EOS operating system,built-in self-diagnostic function. This spare supports legacy enterprise campus high-density PoE wired access deployment.

DiagnosticSwitch fails to boot: check AC power input and power supply installation. PoE port no power: verify PD detection, PoE budget allocation and port admin status. Copper port link down: inspect Cat5 cable quality and auto-negotiation settings. SFP module not detected: confirm Extreme validated SFP transceiver and proper insertion. Stacking failure: verify matching firmware version among stacked B2 switches and stacking cable integrity. Over-temperature alarm: check fan operation and rack ventilation, remove dust buildup.

Product BriefB2H124-48P is Extreme Networks SecureStack B2 1U rackmount 48-port 10/100BASE-TX stackable Layer3 PoE managed switch with 4×1G SFP uplink and dedicated stacking ports, classic spare part for enterprise wiring closet PoE access network overhaul.

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 renovation.