Cisco 250 Series Smart Switches

Product DescriptionPerformanceSwitching capacity and forwarding rateAll switches are wire-speed and nonblockingModelCapacity in millions of packets per second (mpps) (64-byte packets)Switching capacity in gigabits per second (Gbps)SF250-249.5212.8SF250-24P9.5212.8SF250-4813.1017.6SF250-48HP13.1017.6SG250-0811.9016.0SG250-08HP11.9016.0SG250-10P14.8820.0SG250-1826.7836.0SG250-2638.6952.0SG250-26HP38.6952.0SG250-26P38.6952.0SG250-5074.41100.0SG250-50HP74.41100.0SG250-50P74.41100.0SG250X-2495.23128.0SG250X-24P95.23128.0SG250X-48130.94176.0SG250X-48P130.94176.0Layer 2 switchingSpanning Tree Protocol (STP)Standard 802.1d spanning tree supportFast convergence using 802.1w (Rapid Spanning Tree Protocol [RSTP]), enabled by defaultMultiple spanning tree instances using 802.1s (MSTP); 8 instances are supportedPort grouping/link aggregationSupport for IEEE 802.3ad Link Aggregation Control Protocol (LACP)●  Up to 4 groups●  Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad LAGVLANSupport for up to 256 active VLANs simultaneouslyPort-based and 802.1Q tag-based VLANsManagement VLANGuest VLANVoice VLANVoice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Auto voice capabilities deliver networkwide zero-touch deployment of voice endpoints and call control devicesGeneric VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP)Protocols for automatically propagating and configuring VLANs in a bridged domainIGMP (versions 1, 2, and 3) snoopingInternet Group Management Protocol (IGMP) limits bandwidth-intensive multicast traffic to only the requesters; supports 4K multicast groups (source-specific multicasting is also supported)IGMP querierUsed to support a Layer 2 multicast domain of snooping switches in the absence of a multicast routerHOL blockingHead-Of-Line (HOL) blockingLoopback detectionProvides protection against loops by transmitting loop protocol packets out of ports on which loop protection has been enabled. It operates independently of STPLayer 3 routingIPv4 routingWire–speed routing of IPv4 packetsUp to 32 static routes and up to 16 IP interfacesIPv6 routingWire–speed routing of IPv6 packetsLayer 3 interfaceConfiguration of Layer 3 interface on physical port, LAG, VLAN interface, or loopback interfaceClassless Interdomain Routing (CIDR)Support for CIDRDHCP relay at Layer 3Relay of DHCP traffic across IP domainsUser Datagram Protocol (UDP) relayRelay of broadcast information across Layer 3 domains for application discovery or relaying of bootP/DHCP packetsSecuritySSLSecure Sockets Layer (SSL) encrypts all HTTPS traffic, allowing secure access to the browser-based management GUI in the switchSecure Shell (SSH) ProtocolSSH is a secure replacement for Telnet traffic. Secure Copy (SCP) also uses SSH. SSH v1 and v2 are supportedIEEE 802.1X (authenticator role)RADIUS authentication, guest VLAN, single/multiple host mode, and single/multiple sessionsSecure Core Technology (SCT)Ensures that the switch will receive and process management and protocol traffic no matter how much traffic is receivedSecure Sensitive Data (SSD)A mechanism to manage sensitive data (such as passwords, keys, and so on) securely on the switch, populating this data to other devices, and secure autoconfig. Access to view the sensitive data as plaintext or encrypted is provided according to the user-configured access level and the access method of the userPort securityAbility to lock source MAC addresses to ports and limit the number of learned MAC addressesRADIUSSupports RADIUS authentication for management access. Switch functions as a clientStorm controlBroadcast, multicast, and unknown unicastDoS preventionDenial-of-Service (DoS) attack preventionAccess Control Lists (ACLs)Support for up to 512 rulesDrop or rate limit based on source and destination MAC, VLAN ID or IP address, protocol, port, differentiated services code point (DSCP)/IP precedence, TCP/UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flagSTP loopback guardProvides additional protection against Layer 2 forwarding loops (STP loops)Quality of servicePriority levels8 hardware queuesSchedulingStrict priority and Weighted Round-Robin (WRR) queue assignment based on DSCP and class of service (802.1p/CoS)Class of servicePort based; 802.1p VLAN priority based; IPv4/v6 IP precedence/Type of Service (ToS)/DSCP based; Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoSRate limitingIngress policer; egress shaping and rate control; per VLAN, per port, and flow basedCongestion avoidanceA TCP congestion avoidance algorithm is required to reduce and prevent global TCP loss synchronizationStandardsStandardsIEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet, IEEE 802.3ab 1000BASE-T Gigabit Ethernet, IEEE 802.3ad Link Aggregation Control Protocol, IEEE 802.3z Gigabit Ethernet, IEEE 802.3x Flow Control, IEEE 802.3 ad LACP, IEEE 802.1D (STP), IEEE 802.1Q/p VLAN, IEEE 802.1w RSTP, IEEE 802.1s Multiple STP, IEEE 802.1X Port Access Authentication, IEEE 802.3af, IEEE 802.3at, RFC 768, RFC 783, RFC 791, RFC 792, RFC 793, RFC 813, RFC 879, RFC 896, RFC 826, RFC 854, RFC 855, RFC 856, RFC 858, RFC 894, RFC 919, RFC 920, RFC 922, RFC 950, RFC 951, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC 1213, RFC 1215, RFC 1286, RFC 1350, RFC 1442, RFC 1451, RFC 1493, RFC 1533, RFC 1541, RFC 1542, RFC 1573, RFC 1624, RFC 1643, RFC 1700, RFC 1757, RFC 1867, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2030, RFC 2131, RFC 2132, RFC 2233, RFC 2576, RFC 2616, RFC 2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 3416, RFC 4330IPv6IPv6IPv6 host modeIPv6 over EthernetDual IPv6/IPv4 stackIPv6 neighbor and Router Discovery (ND)IPv6 stateless address auto configurationPath Maximum Transmission Unit (MTU) discoveryDuplicate Address Detection (DAD)Internet Control Message Protocol (ICMP) version 6IPv6 over IPv4 network with Intrasite Automatic Tunnel Addressing Protocol (ISATAP) supportUSGv6 and IPv6 Gold Logo certifiedIPv6 QoSPrioritize IPv6 packets in hardwareIPv6 ACLDrop or rate limit IPv6 packets in hardwareMulticast Listener Discovery (MLD v1/2) snoopingDeliver IPv6 multicast packets only to the required receiversIPv6 applicationsWeb/SSL, Telnet server/SSH, Ping, Traceroute, Simple Network Time Protocol (SNTP), Trivial File Transfer Protocol (TFTP), Simple Network Management Protocol (SNMP), Remote Authentication Dial-In User Service (RADIUS), Syslog, DNS client, DHCP client, DHCP autoconfigIPv6 RFCs supportedRFC 4443 (which obsoletes RFC 2463): ICMPv6RFC 4291 (which obsoletes RFC 3513): IPv6 address architectureRFC 4291: IPv6 Addressing ArchitectureRFC 2460: IPv6 SpecificationRFC 4861 (which obsoletes RFC 2461): Neighbor Discovery for IPv6RFC 4862 (which obsoletes RFC 2462): IPv6 Stateless Address AutoconfigurationRFC 1981: Path MTU DiscoveryRFC 4007: IPv6 Scoped Address ArchitectureRFC 3484: Default address selection mechanismRFC 5214 (which obsoletes RFC 4214): ISATAP tunnelingRFC 4293; MIB IPv6: Textual Conventions and General GroupRFC 3595: Textual Conventions for IPv6 Flow LabelManagementWeb user interfaceBuilt-in switch configuration utility for easy browser-based device configuration (HTTP/HTTPS). Supports configuration, wizards, system dashboard, system maintenance, and monitoringBasic and advanced mode for maximum operational efficiencySmart Network Application (SNA)An innovative network-level monitoring and management tool embedded in Cisco 250 to 550X Series switches. It can discover network topology, display link status, monitor events, apply configurations, and upgrade software images across multiple switches in the networkSNMPSNMP versions 1, 2c, and 3 with support for traps, and SNMP v3 User-based Security Model (USM)Standard MIBslldp-MIBlldpextdot1-MIBlldpextdot3-MIBlldpextmed-MIBrfc2674-MIBrfc2575-MIBrfc2573-MIBrfc2233-MIBrfc2013-MIBrfc2012-MIBrfc2011-MIBRFC-1212RFC-1215SNMPv2-CONFSNMPv2-TCp-bridge-MIBq-bridge-MIBrfc1389-MIBrfc1493-MIBrfc1611-MIBrfc1612-MIBrfc1850-MIBrfc1907-MIBrfc2571-MIBrfc2572-MIBrfc2574-MIBrfc2576-MIBrfc2613-MIBrfc2665-MIBrfc2668-MIBrfc2737-MIBrfc2925-MIBrfc3621-MIBrfc4668-MIBrfc4670-MIBtrunk-MIBtunnel-MIBudp-MIBdraft-ietf-bridge-8021x-MIBdraft-ietf-bridge-rstpmib-04-MIBdraft-ietf-hubmib-etherif-mib-v3-00-MIBdraft-ietf-syslog-device-MIBianaaddrfamnumbers-MIBianaifty-MIBianaprot-MIBinet-address-MIBip-forward-MIBip-MIBRFC1155-SMIRFC1213-MIBSNMPv2-MIBSNMPv2-SMISNMPv2-TMRMON-MIBrfc1724-MIBdcb-raj-DCBX-MIB-1108-MIBrfc1213-MIBrfc1757-MIBPrivate MIBsCISCOSB-lldp-MIBCISCOSB-brgmulticast-MIBCISCOSB-bridgemibobjects-MIBCISCOSB-bonjour-MIBCISCOSB-dhcpcl-MIBCISCOSB-MIBCISCOSB-wrandomtaildrop-MIBCISCOSB-traceroute-MIBCISCOSB-telnet-MIBCISCOSB-stormctrl-MIBCISCOSBssh-MIBCISCOSB-socket-MIBCISCOSB-sntp-MIBCISCOSB-smon-MIBCISCOSB-phy-MIBCISCOSB-multisessionterminal-MIBCISCOSB-mri-MIBCISCOSB-jumboframes-MIBCISCOSB-gvrp-MIBCISCOSB-endofmib-MIBCISCOSB-dot1x-MIBCISCOSB-deviceparams-MIBCISCOSB-cli-MIBCISCOSB-cdb-MIBCISCOSB-brgmacswitch-MIBCISCOSB-3sw2swtables-MIBCISCOSB-smartPorts-MIBCISCOSB-tbi-MIBCISCOSB-macbaseprio-MIBCISCOSB-env_mib-MIBCISCOSB-policy-MIBCISCOSB-sensor-MIBCISCOSB-aaa-MIBCISCOSB-application-MIBCISCOSB-bridgesecurity-MIBCISCOSB-copy-MIBCISCOSB-CpuCounters-MIBCISCOSB-Custom1BonjourService-MIBCISCOSB-dhcp-MIBCISCOSB-dlf-MIBCISCOSB-dnscl-MIBCISCOSB-embweb-MIBCISCOSB-fft-MIBCISCOSB-file-MIBCISCOSB-greeneth-MIBCISCOSB-greeneth-MIBCISCOSB-interfaces-MIBCISCOSB-interfaces_recovery-MIBCISCOSB-ip-MIBCISCOSB-iprouter-MIBCISCOSB-ipv6-MIBCISCOSB-mnginf-MIBCISCOSB-lcli-MIBCISCOSB-localization-MIBCISCOSB-mcmngr-MIBCISCOSB-mng-MIBCISCOSB-physdescription-MIBCISCOSB-PoE-MIBCISCOSB-protectedport-MIBCISCOSB-rmon-MIBCISCOSB-rs232-MIBCISCOSB-SecuritySuite-MIBCISCOSB-snmp-MIBCISCOSB-specialbpdu-MIBCISCOSB-banner-MIBCISCOSB-syslog-MIBCISCOSB-TcpSession-MIBCISCOSB-traps-MIBCISCOSB-trunk-MIBCISCOSB-tuning-MIBCISCOSB-tunnel-MIBCISCOSB-udp-MIBCISCOSB-vlan-MIBCISCOSB-ipstdacl-MIBCISCOSB-eee-MIBCISCOSB-ssl-MIBCISCOSB-digitalkeymanage-MIBCISCOSB-qosclimib-MIBCISCOSB-digitalkeymanage-MIBCISCOSB-tbp-MIBCISCOSMB-MIBCISCOSB-secsd-MIBCISCOSB-draft-ietf-entmib-sensor-MIBCISCOSB-draft-ietf-syslog-device-MIBCISCOSB-rfc2925-MIBCISCO-SMI-MIBCISCOSB-DebugCapabilities-MIBCISCOSB-CDP-MIBCISCOSB-vlanVoice-MIBCISCOSB-EVENTS-MIBCISCOSB-sysmng-MIBCISCOSB-sct-MIBCISCO-TC-MIBCISCO-VTP-MIBCISCO-CDP-MIBRemote monitoring (RMON)Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysisIPv4 and IPv6 dual stackCoexistence of both protocol stacks to ease migrationFirmware upgradeWeb browser upgrade (HTTP/HTTPS) and TFTP and upgrade over SCP running over SSHDual images for resilient firmware upgradesPort mirroringTraffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe. Up to 4 source ports can be mirrored to one destination portVLAN mirroringTraffic from a VLAN can be mirrored to a port for analysis with a network analyzer or RMON probe. Up to 4 source VLANs can be mirrored to one destination portDynamic Host Configuration Protocol (DHCP) (options 12, 66, 67, 129, and 150)DHCP options facilitate tighter control from a central point (DHCP server), to obtain IP address, autoconfiguration (with configuration file download), DHCP Relay, and host nameSecure Copy (SCP)Securely transfers files to and from the switchAutoconfiguration with SCP file downloadEnables mass deployment with protection of sensitive dataText-editable configsConfig files can be edited with a text editor and downloaded to another switch, facilitating easier mass deploymentSmartportsSimplified configuration of QoS and security capabilitiesAuto SmartportsAutomatically applies the intelligence delivered through the Smartports roles to the port based on the devices discovered over Cisco Discovery Protocol or LLDP-MED. This facilitates zero-touch deploymentsTextview Command-Line Interface (CLI)Scriptable CLI. A full CLI as well as a menu-based CLI is supported. User privilege levels 1, 7, and 15 are supported for the CLICloud servicesSupport for Cisco FindIT Network Manager and Cisco Active AdvisorEmbedded FindIT Network ProbeSupport for embedded FindIT Network Probe running on the switch. Eliminates the need to set up a separate hardware or virtual machine for the FindIT Network Probe on siteCisco Network Plug and Play (PnP) agentThe Cisco Network Plug and Play solution provides a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts or for provisioning updates to an existing network. The solution provides a unified approach to provision Cisco routers, switches, and wireless devices with a near–zero–touch deployment experienceLocalizationLocalization of GUI and documentation into multiple languagesLogin bannerConfigurable multiple banners for web as well as CLIOther managementTraceroute; single IP management; HTTP/HTTPS; RADIUS; port mirroring; TFTP upgrade; DHCP client; Simple Network Time Protocol (SNTP); cable diagnostics; Ping; syslog; Telnet client (SSH secure support); automatic time settings from Management StationGreen (power efficiency)Energy detectAutomatically turns power off on RJ-45 port when detecting link down. Active mode is resumed without loss of any packets when the switch detects the link is upCable length detectionAdjusts the signal strength based on the cable length. Reduces the power consumption for shorter cablesEEE compliant (802.3az)Supports IEEE 802.3az on all copper Gigabit Ethernet portsDisable port LEDsLEDs can be manually turned off to save on energyTime-based port operationLink up or down based on user-defined schedule (when the port is administratively up)Time-based PoEPoE power can be on or off based on user-defined schedule to save energyGeneralJumbo framesFrame sizes up to 9K bytes. The default MTU is 2K bytesMAC table8K addressesDiscoveryBonjourThe switch advertises itself using the Bonjour protocolLink Layer Discovery Protocol (LLDP) (802.1ab) with LLDP-MED extensionsLink Layer Discovery Protocol (LLDP) allows the switch to advertise its identification, configuration, and capabilities to neighboring devices that store the data in a MIB. LLDP-MED is an enhancement to LLDP that adds the extensions needed for IP phonesCisco Discovery ProtocolThe switch advertises itself using the Cisco Discovery Protocol. It also learns the connected device and its characteristics using Cisco Discovery ProtocolProduct specifications802.3at PoE and 802.3af PoE delivered over any of the RJ-45 ports within the listed power budgetsThe following switches support 802.3at PoE , 802.3af, and Cisco prestandard (legacy) PoE. Maximum power of 30.0W to any 10/100 or Gigabit Ethernet port, until the PoE budget for the switch is reached. The total power available for PoE per switch is as follows:ModelPower dedicated to PoENumber of ports that support PoESF250-24P185W24SF250-48HP195W48SG250-08HP45W8SG250-10P62W8SG250-26HP100W24SG250-26P195W24SG250-50HP192W48SG250-50P375W48SG250X-24P195W24SG250X-48P382W48PoE Powered Device (PD) and PoE pass-throughBesides AC power, select compact switch models can work as PoE Powered Device (PD) and be powered by PoE switches connected to the uplink ports. The switch can also pass through the power to downstream PoE end devices if requiredMaximum of 60W can be drawn per uplink port if the peer PoE switch supports 60W PoE. When multiple uplink ports are connected to PoE switches, the power drawn from these ports is combinedWhen AC power is connected and functioning correctly, it is preferred over PoE power. The PoE power can function as a backup to the AC power source or be used as the sole power source for the switchModelPower optionAvailable PoE pass-through power (W)Can switch be powered with uplinks?SG250-081 x PoE uplink1 x PoE uplinkAC PowerN/AN/AN/AYesYesYesSG250-10P1 x PoE uplink2 x PoE uplink1 x PoE uplink2 x PoE uplink1 x 60W PoE uplink2 x 60W PoE uplinkAC Power0W0W0W22W22W50W62WYesYesYesYesYesYesYesPower consumption (worst case)ModelGreen power (mode)System power consumptionPower consumption (with PoE)Heat dissipation (BTU/hr)SF250-24EEE, Energy Detect110V=10.6W220V=10.9W–37.19SF250-24PEEE, Energy Detect110V=29.2W220V=28.3W110V=238W220V=230W812.09SF250-48EEE, Energy Detect110V=23.4W220V=24.2W–82.57SF250-48HPEEE, Energy Detect110V=43.1W220V=44.3W110V=265.2W220V=255.8W904.90SG250-08EEE, Energy Detect, Short Reach110V=7.6W220V=7.6W–25.93SG250-08HPEEE, Energy Detect, Short Reach110V=9.1W220V=10.1W110V=61.4W220V=59.8W209.51SG250-10PEEE, Energy Detect, Short Reach110V=13.25W220V=13.42W110V=85.19W220V=84.17W290.68SG250-18EEE, Energy Detect, Short Reach110V=13.1W220V=13.0W–44.70SG250-26EEE, Energy Detect, Short Reach110V=18.1W220V=18.9W–64.49SG250-26HPEEE, Energy Detect, Short Reach110V=23.5W220V=24.4W110V=135.2W220V=133.9W461.32SG250-26PEEE, Energy Detect, Short Reach110V=34.2W220V=37.2W110V=262W220V=254.5W893.98SG250-50EEE, Energy Detect, Short Reach110V=35.2W220V=35.4W–120.79SG250-50HPEEE, Energy Detect, Short Reach110V=57.5W220V=59.3W110V=267.2W220V=263.5W911.72SG250-50PEEE, Energy Detect, Short Reach110V=58.5W220V=60.3W110V=481.9W220V=468.1W1,644.31SG250X-24EEE, Energy Detect, Short Reach110V=28.7W220V=29.1W–99.29SG250X-24PEEE, Energy Detect, Short Reach110V=46.8W220V=49.2W110V=260.1W220V=257.1W887.50SG250X-4 8EEE, Energy Detect, Short Reach110V=46.0W220V=45.6W–156.96SG250X-48PEEE, Energy Detect, Short Reach110V=68.4W220V=70.3W110V=502.3W220V=487.1W1,713.92PortsModel nameTotal system portsRJ-45 portsCombo ports (RJ-45 SFP)SF250-2424 Fast Ethernet 4 Gigabit Ethernet24 Fast Ethernet2 Gigabit Ethernet combo 2 SFPSF250-24P24 Fast Ethernet 4 Gigabit Ethernet24 Fast Ethernet2 Gigabit Ethernet combo 2 SFPSF250-4848 Fast Ethernet 4 Gigabit Ethernet48 Fast Ethernet2 Gigabit Ethernet combo 2 SFPSF250-48HP48 Fast Ethernet 4 Gigabit Ethernet48 Fast Ethernet2 Gigabit Ethernet combo 2 SFPSG250-088 Gigabit Ethernet8 Gigabit Ethernet–SG250-08HP8 Gigabit Ethernet8 Gigabit Ethernet–SG250-10P10 Gigabit Ethernet8 Gigabit Ethernet2 Gigabit Ethernet comboSG250-1818 Gigabit Ethernet16 Gigabit Ethernet2 Gigabit Ethernet comboSG250-2626 Gigabit Ethernet24 Gigabit Ethernet2 Gigabit Ethernet comboSG250-26HP26 Gigabit Ethernet24 Gigabit Ethernet2 Gigabit Ethernet comboSG250-26P26 Gigabit Ethernet24 Gigabit Ethernet2 Gigabit Ethernet comboSG250-5050 Gigabit Ethernet48 Gigabit Ethernet2 Gigabit Ethernet comboSG250-50HP50 Gigabit Ethernet48 Gigabit Ethernet2 Gigabit Ethernet comboSG250-50P50 Gigabit Ethernet48 Gigabit Ethernet2 Gigabit Ethernet comboSG250X-2424 Gigabit Ethernet  4 10 Gigabit Ethernet24 Gigabit Ethernet2 10 Gigabit Ethernet copper 2 SFP SG250X-24P24 Gigabit Ethernet  4 10 Gigabit Ethernet24 Gigabit Ethernet2 10 Gigabit Ethernet copper 2 SFP SG250X-4848 Gigabit Ethernet  4 10 Gigabit Ethernet48 Gigabit Ethernet2 10 Gigabit Ethernet copper 2 SFP SG250X-48P48 Gigabit Ethernet  4 10 Gigabit Ethernet48 Gigabit Ethernet2 10 Gigabit Ethernet copper 2 SFP USB slotUSB Type-A slot on the front panel of the switch for easy file and image managementButtonsReset buttonCabling typeUnshielded Twisted Pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5e or better for 1000BASE-TLEDsSystem, Link/Act, PoE, SpeedFlash256 MBCPU800 MHz ARMCPU memory512 MBPacket bufferAll numbers are aggregate across all ports because the buffers are dynamically shared:Model namePacket bufferSF250-2412 MbSF250-24P12 MbSF250-4824 MbSF250-48HP24 MbSG250-0812 MbSG250-08HP12 MbSG250-10P12 MbSG250-1812 MbSG250-2612 MbSG250-26HP12 MbSG250-26P12 MbSG250-5024 MbSG250-50HP24 MbSG250-50P24 MbSG250X-2412 MbSG250X-24P12 MbSG250X-4824 MbSG250X-48P24 MbSupported SFP/SFP modulesSKUMediaSpeedMaximum distanceMGBBX1Single-mode fiber1000 Mbps10 kmMGBSX1Multimode fiber1000 Mbps500 mMGBLH1Single-mode fiber1000 Mbps40 kmMGBLX1Single-mode fiber1000 Mbps10 kmMGBT1UTP cat 5e1000 Mbps100 mGLC-LH-SMD=Single-mode fiber1000 Mbps10 kmGLC-BX-U=Single-mode fiber1000 Mbps10 kmSFP-H10GB-CU1MCopper coax10 Gig1 mSFP-H10GB-CU3MCopper coax10 Gig3 mSFP-H10GB-CU5MCopper coax10 Gig5 mSFP-10G-SRMultimode fiber10 Gig26 m – 400 mSFP-10G-LRSingle-mode fiber10 Gig10 kmSFP-10G-SR-SMultimode fiber10 Gig26 m – 400 mSFP-10G-LR-SSingle-mode fiber10 Gig10 kmEnvironmentalUnit dimensions (W x H x D)Model nameUnit dimensionsSF250-24440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in)SF250-24P440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)SF250-48440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)SF250-48HP440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)SG250-08160 x 30 x 128 mm (6.3 x 1.18 x 5.04 in)SG250-08HP160 x 30 x 128 mm (6.3 x 1.18 x 5.04 in)SG250-10P280 x 44 x 170 mm (11.0 x 1.45 x 6.69 in)SG250-18440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in)SG250-26440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in)SG250-26HP440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)SG250-26P440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)SG250-50440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)SG250-50HP440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)SG250-50P440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)SG250X-24440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)SG250X-24P440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)SG250X-48440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)SG250X-48P440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)Unit weightModel nameUnit weightSF250-242.72 kg (6 lb)SF250-24P4.1 kg (9.04 lb)SF250-483.57 kg (7.87 lb)SF250-48HP4.93 kg (10.87 lb)SG250-080.54 kg (1.19 lb)SG250-08P0.56 kg (1.23 lb)SG250-10P1.2 kg (2.65 lb)SG250-182.08 kg (4.59 lb)SG250-262.72 kg (6.0 lb)SG250-26HP3.37 kg (7.43 lb)SG250-26P3.81 kg (8.40 lb)SG250-502.94 kg (6.48 lb)SG250-50HP4.8 kg (10.58 lb)SG250-50P4.82 kg (10.63 lb)SG250X-242.66 kg (5.86 lb)SG250X-24P3.86 kg (8.51 lb)SG250X-483 kg (6.61 lb)SG250X-48P4.84 kg (10.67 lb)Power100 to 240V 50 to 60 Hz, internal, universal: SF250-24, SF250-24P, SF250-48, SF250-48HP, SG250-26, SG250-26HP, SG250-26P, SG250-50, SG250-50HP, SG250-50P, SG250X-24, SG250X-24P, SG250X-48, SG250X-48P100 to 240V 50 to 60 Hz, external: SG250-08, SG250-08HP, SG250-10PCertificationUL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class AOperating temperature32° to 122°F (0° to 50°C)Storage temperature-4° to 158°F (-20° to 70°C)Operating humidity10% to 90%, relative, noncondensingStorage humidity10% to 90%, relative, noncondensingAcoustic noise and Mean Time Between Failures (MTBF)Model nameFan (number)Acoustic noiseMTBF at 50°C (hours)SF250-24No fan–630,719SF250-24P20° to 25°C: 39.7dB50°C: 52.2dB314,040SF250-48No fan–256,281SF250-48HP20° to 30°C: 38.0dB50°C: 52.7dB286,555SG250-08No fan–1,305,509SG250-08HPNo fan–506,682SG250-10PNo fan–205,647SG250-18No fan–1,425,277SG250-26No fan–343,592SG250-26HP10° to 30°C: 37.5dB50°C: 49.7dB333,792SG250-26P20° to 30°C: 36.0dB50°C: 53.7dB430,341SG250-5010° to 30°C: 35.1dB50°C: 47.5dB134,933SG250-50HP20° to 30°C: 34.2dB50°C: 47.3dB62,607SG250-50P40° to 30°C: 35.6dB50°C: 50.2dB53,839SG250X-2410° to 30°C: 32.6dB50°C: 44.9dB130,255SG250X-24P20° to 30°C: 35.1dB50°C: 46.2dB62,949SG250X-4820° to 30°C: 36.6dB50°C: 49.3dB68,585SG250X-48P40° to 30°C: 35.9dB50°C: 50.6dB53,722WarrantyLimited lifetimePackage contents●  Cisco 250 Series Smart Switch●  Power cord (power adapter for 8-port and 10-port SKUs)●  Mounting kit●  Quick Start GuideMinimum requirements●  Web browser: Mozilla Firefox version 36 or later; Microsoft Internet Explorer version 9 or later, Chrome version 40 or later, Safari version 5 or  later●  Category 5 Ethernet network cable●  TCP/IP, network adapter, and network operating system (such as Microsoft Windows, Linux, or Mac OS X) installedOrdering informationTable 2 provides ordering information.Table 2.       Ordering informationModel nameProduct order ID numberDescriptionFast EthernetSF250-24SF250-24-K9-xx●  24 10/100 ports●  2 Gigabit copper/SFP combo 2 SFP portsSF250-24PSF250-24P-K9-xx●  24 10/100 PoE ports with 185W power budget●  2 Gigabit copper/SFP combo 2 SFP portsSF250-48SF250-48-K9-xx●  48 10/100 ports●  2 Gigabit copper/SFP combo 2 SFP portsSF250-48HPSF250-48HP-K9-xx●  48 10/100 PoE ports with 195W power budget●  2 Gigabit copper/SFP combo 2 SFP portsGigabit EthernetSG250-08SG250-08-K9-xx●  8 10/100/1000 ports (Port 8 with PoE power input support)SG250-08HPSG250-08HP-K9-xx●  8 10/100/1000 PoE ports with 45W power budgetSG250-10PSG250-10P-K9●  8 10/100/1000 PoE ports with 62W power budget●  2 Gigabit copper/SFP combo ports with 60W PoE power input supportSG250-18SG250-18-K9-xx●  16 10/100/1000 ports●  2 Gigabit copper/SFP combo portsSG250-26SG250-26-K9-xx●  24 10/100/1000 ports●  2 Gigabit copper/SFP combo portsSG250-26HPSG250-26HP-K9-xx●  24 10/100/1000 PoE ports with 100W power budget●  2 Gigabit copper/SFP combo portsSG250-26PSG250-26P-K9-xx●  24 10/100/1000 PoE ports with 195W power budget●  2 Gigabit copper/SFP combo portsSG250-50SG250-50-K9-xx●  48 10/100/1000 ports●  2 Gigabit copper/SFP combo portsSG250-50HPSG250-50HP-K9-xx●  48 10/100/1000 PoE ports with 192W power budget●  2 Gigabit copper/SFP combo portsSG250-50PSG250-50P-K9-xx●  48 10/100/1000 PoE ports with 375W power budget●  2 Gigabit copper/SFP combo ports10 Gigabit EthernetSG250X-24SG250X-24-K9-xx●  24 10/100/1000 ports●  4 10 Gigabit Ethernet (2 x 10GBase-T 2 x SFP )SG250X-24PSG250X-24P-K9-xx●  24 10/100/1000 PoE ports with 195W power budget●  4 10 Gigabit Ethernet (2 x 10GBASE -T 2 x SFP )SG250X-48SG250X-48-K9-xx●  48 10/100/1000 ports●  4 10 Gigabit Ethernet (2 x 10GBASE -T 2 x SFP )SG250X-48PSG250X-48P-K9-xx●  48 10/100/1000 PoE ports with 382W power budget●  4 10 Gigabit Ethernet (2 x 10GBASE -T 2 x SFP )Related