Extreme Networks I3H252-12TX Fast Ethernet Stackable Managed Switch

Technical SpecificationsModel:I3H252-12TX Brand:Extreme Networks Product Type:1U rackmount stackable Layer2 access switch Ports:12 × 10/100BASE-TX RJ45 copper ports,1 × dedicated HSIM high speed interface module expansion slot Speed:10/100Mbps auto-negotiation per port Switching capacity:8.8 Gbps Forwarding rate:6.6 Mpps MAC address table:16000 entries VLAN:4094 VLAN IDs Redundancy:Supports external RPS redundant power supply Operating temperature:0℃ ~ +40℃ Storage temperature:-40℃ ~ +70℃ Relative humidity:10%~90%, non-condensing Weight:2.1 kg

System compatibilityI3H252-12TX belongs to Extreme Networks I-Series family, formerly Enterasys. Multiple I-Series switches can be stacked together. The HSIM slot supports optional gigabit or fast fiber uplink modules. Widely used for legacy enterprise branch and office copper access spare replacement.

FunctionI3H252-12TX is a managed fast ethernet access switch. It supports VLAN segmentation, STP/RSTP, LACP link aggregation, QoS, IGMP snooping, port mirroring and SNMP monitoring. The HSIM expansion slot provides flexible uplink media selection for fiber or copper gigabit uplink. It monitors port link status, module temperature and power supply health, and reports hardware alarms. Used for small office and branch fast ethernet access networks.

InstallationMount the switch on 19-inch 1U rack. Connect AC power cord; external RPS redundant power supply is optional. Install HSIM uplink module if required. Connect Cat5e cables to RJ45 access ports. Connect DB9 serial console port for EOS configuration. Verify boot sequence and port link status before putting into production.

Interface12×10/100BASE-TX RJ45 copper ports,1×HSIM expansion slot,DB9 serial console port,status LEDs,AC power inlet,RPS connector,rack mounting ears for Extreme Networks I3H252-12TX.

FeatureOriginal Extreme Networks I-Series 1U rackmount 12-port fast ethernet stackable switch, flexible HSIM uplink expansion, wire-speed switching, external redundant power support,EOS operating system,built-in self-diagnostic function. This spare supports legacy enterprise branch and small office copper access deployment.

DiagnosticSwitch fails to boot: check AC power cord and wall power supply. Copper port link down: verify Cat5e cable and port admin status. HSIM module not detected: check module insertion and slot compatibility. Stacking failure: verify consistent firmware version among stacked I-Series switches. Over-temperature alarm: inspect chassis ventilation and clear dust.

Product BriefI3H252-12TX is Extreme Networks I-Series 1U rackmount 12-port 10/100BASE-TX stackable managed switch with HSIM uplink expansion slot, classic spare part for legacy enterprise branch office fast ethernet 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.