MDM-25PBSM17-A174中文资料

Pin AssignmentsDB-25 and DB-9 Pin AssignmentsRJ-45 Pin Assignments for 10-Pin and 8-Pin RJ-45 ConnectorsRefer to the Digi CD for more detailed cabling information or visit for more information.Digi, the Digi Connectware logo, AccelePort, and Digi Neo are trademarks or registeredtrademarks of Digi International in the United States and other countries. All other brandand product names are trademarks of their respective holders.© Digi International Inc., 2001, 2002, 2003 All Rights Reserved; Information in this document is subject to change without notice and does not represent acommitment on the part of Digi International.Digi provides this document “as is,” without warranty of any kind, either expressed orimplied, including, but not limited to, the implied warranties of fitness or merchantabilityfor a particular purpose. Digi may make improvements and/or changes in this manual or inthe product(s) and/or the program(s) described in this manual at any time.This product could include technical inaccuracies or typographical errors. Changes are peri-odically made to the information herein; these changes may be incorporated in new editionsof the publication.Digi NeoPCI Host AdaptersEIA-232Hardware InstallationGuideIntroductionA Digi Neo™ adapter easily expands the number of EIA-232 portsavailable on your computer, allowing you to cable additional peripheraldevices, such as modems, terminals or serial printers, directly to yourcomputer.The Digi Neo 2 port adapter has two connectors (DB-9 or RJ-45) on theadapter to provide peripheral port connections.Digi Neo 4 and 8 port adapters are equipped with an HD-68 connector towhich a special Digi connector assembly is attached to provide theperipheral port connections. There are seven different connector assem-bly options available to use with Digi Neo 4 and Neo 8 adapters:•RJ-45 Connector Box•DB-25 Connector Box (male connectors)•DB-9 Connector Box (male connectors)•DB-25 Fan-out Cable (male or female connectors)•DB-9 Fan-out Cable (male or female connectors)This installation guide describes how to plan your setup and install a DigiNeo adapter.Signal Description DB-25 Pin DB-9 Pin GND Chassis Ground Shell Shell TxD Transmitted Data23 RxD Received Data32 RTS Request To Send47CTS Clear To Send58DSR Data Set Ready66SG Signal Ground75DCD Data Carrier Detect81DTR Data Terminal Ready204RI Ring Indicator229Signal Description Pin # (of 10)Pin # (of 8)RI Ring Indicator1N/ADSR Data Set Ready2†1†RTS Request To Send32GND Chassis Ground43TxD Transmitted Data54RxD Received Data65SG Signal Ground76CTS Clear To Send87DTR Data Terminal Ready98DCD Data Carrier Detect10N/A† DSR (Pin 2 on a 10 pin connector, Pin 1 on an 8 pin connector)can be swapped with DCD by using the ALTPIN configurationoption. ALTPIN reverses the position of these two signals in 10pin connectors and allows DCD to be used instead of DSR on an8 pin connector.Consult the driver documentation for how to do this in yourspecific operating system.91001071_BStep One: Plan Your SetupA Digi Neo adapter can be set up in a variety of ways. Before you start your installation, consider the following:Number of Components. You can connect two peripheral devices to a Digi Neo 2, up to four peripheral devices to a Digi Neo 4, and eight periph-eral devices to a Digi Neo 8 adapter. Up to four Digi Neo adapters may be installed in a computer.Construction of Cables. To achieve the greatest reliability over distance, cables should be:•Shielded, low capacitance, and preferably designed specifically for serial data transmission.•Grounded at both ends of the cable.•Routed away from noise sources such as generators, motors and fluorescent lights.Cable Connections. Before beginning the installation, verify that you have the appropriate Digi connector assemblies (fan-out cables or connec-tor box assemblies). Fan-out cable and connector box options aredescribed in detail in a separate Cable Usage Guide.You will also need a cable for each peripheral that you will be attach-ing to the connector assembly. The connector type that you need at either end of the peripheral cable depends on the type of Digi connec-tor assembly that you use and the connector on the peripheral.Digi connector assemblies are available with RJ-45, DB-25 or DB-9 connectors. You will need to be sure that you have cables of the cor-rect length and with the right connectors to properly attach thedevices you want to use.Additional information about the Digi Neo adapter, such as specifications and cabling details, is provided on the Digi CD which is packaged with the adapter.Step Two: Install the Neo AdapterCAUTION! To guard against damage to the adapter due to electrostaticdischarge (ESD), do not remove the adapter from its protective packag-ing until you have grounded yourself to the computer chassis (see step 4,below).1.Shut down your computer in the manner recommended for your oper-ating system.2.Unplug power from the computer.3.Remove the computer’s cover.4.Touch the computer chassis to equalize any static potential betweenyourself and the computer. This will help prevent damage to theadapter due to electrostatic discharge.5.Locate an available PCI slot in your computer and remove the slotplate.6.Remove the adapter from its protective packaging.7.Write down the serial number of the adapter in the space providedbelow.8.Insert the adapter into the slot and screw the endplate to the computerchassis. The endplate must be screwed into the computer chassis toremain in compliance with Part 15 of FCC rules.9.Replace the computer’s cover.10.Attach the peripheral interconnect cable(s) to the adapter.CAUTION: Many SCSI adapters use the same HD-68 connector type asthe Neo adapter. Do not plug SCSI devices into the Digi connector, anddo not plug Digi peripheral cables into SCSI adapters.Serial Number: ________________________Step Three: Install Peripheral CablingYou can connect modems, terminals, serial printers, or any other standardEIA-232 device to a Digi Neo adapter using a cable between the periph-eral and the Digi connector assembly.On the peripheral end of the cable, the connector you must have dependson the requirements of the peripheral. The Digi end of the cable must beequipped with the connector type that mates with the connectors on theDigi connector assemblyIn the case of the 2 port product, the cables are connected directly to theadapter’s end-plate.。

LM78M12中⽂资料LM341/LM78MXX Series3-Terminal Positive Voltage RegulatorsGeneral DescriptionThe LM341and LM78MXX series of three-terminal positive voltage regulators employ built-in current limiting,thermal shutdown,and safe-operating area protection which makes them virtually immune to damage from output overloads.With adequate heatsinking,they can deliver in excess of 0.5A output current.Typical applications would include local (on-card)regulators which can eliminate the noise and de-graded performance associated with single-point regulation.Featuresn Output current in excess of 0.5A n No external componentsn Internal thermal overload protection n Internal short circuit current-limitingn Output transistor safe-area compensationnAvailable in TO-220,TO-39,and TO-252D-PAK packagesn Output voltages of 5V,12V,and 15VConnection DiagramsTO-39Metal Can Package (H)DS010484-5Bottom ViewOrder Number LM78M05CH,LM78M12CH or LM78M15CHSee NS Package Number H03ATO-220Power Package (T)DS010484-6Top ViewOrder Number LM341T-5.0,LM341T-12,LM341T-15,LM78M05CT,LM78M12CT or LM78M15CTSee NS Package Number T03BTO-252DS010484-19Top ViewOrder Number LM78M05CDT See NS Package Number TD03BJuly 1999LM341/LM78MXX Series 3-Terminal Positive Voltage Regulators1999National Semiconductor Corporation /doc/96ef4d46852458fb770b5641.htmlAbsolute Maximum Ratings(Note1)If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.Lead Temperature(Soldering,10seconds)TO-39Package(H)300?C TO-220Package(T)260?C Storage Temperature Range?65?C to+150?C Operating Junction TemperatureRange?40?C to+125?C Power Dissipation(Note2)Internally Limited Input Voltage5V≤V O≤15V35V ESD Susceptibility TBDElectrical CharacteristicsLimits in standard typeface are for T J=25?C,and limits in boldface type apply over the?40?C to+125?C operating temperature range.Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control(SQC) methods.LM341-5.0,LM78M05CUnless otherwise specified:V IN=10V,C IN=0.33µF,C O=0.1µFSymbol Parameter Conditions Min Typ Max Units V O Output Voltage I L=500mA 4.8 5.0 5.2V5mA≤I L≤500mA 4.75 5.0 5.25P D≤7.5W,7.5V≤V IN≤20VV R LINE Line Regulation7.2V≤V IN≤25V I L=100mA50mVI L=500mA100V R LOAD Load Regulation5mA≤I L≤500mA100I Q Quiescent Current I L=500mA410.0mA ?I Q Quiescent Current Change5mA≤I L≤500mA0.57.5V≤V IN≤25V,I L=500mA 1.0V n Output Noise Voltage f=10Hz to100kHz40µVElectrical CharacteristicsLimits in standard typeface are for T J=25?C,and limits in boldface type apply over the?40?C to+125?C operating temperature range.Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control(SQC) methods.(Continued)LM341-12,LM78M12CUnless otherwise specified:V IN=19V,C IN=0.33µF,C O=0.1µFSymbol Parameter Conditions Min Typ Max UnitsV O Output Voltage I L=500mA11.51212.5V5mA≤I L≤500mA11.41212.6P D≤7.5W,14.8V≤V IN≤27VV R LINE Line Regulation14.5V≤V IN≤30V I L=100mA120mVI L=500mA240V R LOAD Load Regulation5mA≤I L≤500mA240I Q Quiescent Current I L=500mA410.0mAI Q Quiescent Current Change5mA≤I L≤500mA0.514.8V≤V IN≤30V,I L=500mA 1.0V n Output Noise Voltage f=10Hz to100kHz75µVRipple Rejection f=120Hz,I L=500mA69dBV IN Input Voltage Required I L=500mA17.6V to Maintain Line RegulationV O Long Term Stability I L=500mA60mV/khrs Note1:Absolute maximum ratings indicate limits beyond which damage to the component may occur.Electrical specifications do not apply when operating the de-vice outside of its rated operating conditions.Note2:The typical thermal resistance of the three package types is:T(TO-220)package:θ(JA)=60?C/W,θ(JC)=5?C/WH(TO-39)package:θ(JA)=120?C/W,θ(JC)=18?C/WDT(TO-252)package:θ(JA)=92?C/W,θ(JC)=10?C/W3/doc/96ef4d46852458fb770b5641.htmlSchematic DiagramDS010484-1 /doc/96ef4d46852458fb770b5641.html 4 Typical Performance CharacteristicsPeak Output CurrentDS010484-10Ripple RejectionDS010484-11Ripple RejectionDS010484-12Dropout VoltageDS010484-13Output Voltage(Normalizedto1V at T J=25?C)DS010484-14Quiescent CurrentDS010484-15/doc/96ef4d46852458fb770b5641.html 5Typical Performance Characteristics(Continued)Design ConsiderationsThe LM78MXX/LM341XX fixed voltage regulator series has built-in thermal overload protection which prevents the de-vice from being damaged due to excessive junction tem-perature.The regulators also contain internal short-circuit protection which limits the maximum output current,and safe-area pro-tection for the pass transistor which reduces the short-circuit current as the voltage across the pass transistor is in-creased.Although the internal power dissipation is automatically lim-ited,the maximum junction temperature of the device must be kept below +125?C in order to meet data sheet specifica-tions.An adequate heatsink should be provided to assure this limit is not exceeded under worst-case operating condi-tions (maximum input voltage and load current)if reliable performance is to be obtained).1.0Heatsink ConsiderationsWhen an integrated circuit operates with appreciable cur-rent,its junction temperature is elevated.It is important to quantify its thermal limits in order to achieve acceptable per-formance and reliability.This limit is determined by summing the individual parts consisting of a series of temperature rises from the semiconductor junction to the operating envi-ronment.A one-dimension steady-state model of conduction heat transfer is demonstrated in The heat generated at thedevice junction flows through the die to the die attach pad,through the lead frame to the surrounding case material,to the printed circuit board,and eventually to the ambient envi-ronment.Below is a list of variables that may affect the ther-mal resistance and in turn the need for a heatsink.R θJC (Component Variables)R θCA (Application Variables)Leadframe Size &Material Mounting Pad Size,Material,&LocationNo.of Conduction Pins Placement of Mounting Pad Die SizePCB Size &Material Die Attach MaterialTraces Length &WidthMolding Compound Size and MaterialAdjacent Heat Sources Volume of Air Air FlowAmbient Temperature Shape of Mounting PadQuiescent CurrentDS010484-16Output ImpedanceDS010484-17Line Transient Response DS010484-7Load Transient ResponseDS010484-8/doc/96ef4d46852458fb770b5641.html6Design Considerations(Continued)The LM78MXX/LM341XX regulators have internal thermal shutdown to protect the device from over-heating.Under all possible operating conditions,the junction temperature of the LM78MXX/LM341XX must be within the range of 0?C to 125?C.A heatsink may be required depending on the maxi-mum power dissipation and maximum ambient temperature of the application.To determine if a heatsink is needed,the power dissipated by the regulator,P D ,must be calculated:I IN =I L +I GP D =(V IN ?V OUT )I L +V IN I Gshows the voltages and currents which are present in the circuit.The next parameter which must be calculated is the maxi-mum allowable temperature rise,T R (max):θJA =TR (max)/P D If the maximum allowable value for θJA ?C/w is found to be ≥60?C/W for TO-220package or ≥92?C/W for TO-252pack-age,no heatsink is needed since the package alone will dis-sipate enough heat to satisfy these requirements.If the cal-culated value for θJA fall below these limits,a heatsink is required.As a design aid,Table 1shows the value of the θJA of TO-252for different heatsink area.The copper patterns that we used to measure these θJA are shown at the end of the Application Note Section.reflects the same test results as what are in the Table 1shows the maximum allowable power dissipation vs.ambi-ent temperature for theTO-252device.shows the maximum allowable power dissipation vs.copper area (in 2)for the TO-252device.Please see AN1028for power enhancement techniques to be used with TO-252package.TABLE 1.θJA Different Heatsink AreaLayoutCopper AreaThermal Resistance Top Sice (in 2)*Bottom Side (in 2)(θJA ,?C/W)TO-25210.0123010320.06608730.306040.5305450.7605261047700.284800.470900.6631000.857110157120.0660.06689130.1750.17572140.2840.28461150.3920.39255160.50.553*Tab of device attached to topside copperDS010484-23FIGURE 1.Cross-sectional view of Integrated Circuit Mounted on a printed circuit board.Note that the case temperature is measured at the point where the leadscontact with the mounting pad surface DS010484-24FIGURE 2.Power Dissipation Diagram/doc/96ef4d46852458fb770b5641.html 7Design Considerations(Continued)Typical ApplicationDS010484-20FIGURE 3.θJA vs.2oz Copper Area for TO-252DS010484-22FIGURE 4.Maximum Allowable Power Dissipation vs.Ambient Temperature for TO-252DS010484-21FIGURE 5.Maximum Allowable Power Dissipation vs.2oz.Copper Area for TO-252DS010484-9*Required if regulator input is more than 4inches from input filter capacitor (or if no input filter capacitor is used).**Optional for improved transient response./doc/96ef4d46852458fb770b5641.html 8 Physical Dimensions inches(millimeters)unless otherwise notedTO-39Metal Can Package(H)Order Number LM78M05CH,LM78M12CH or LM78M15CHNS Package Number H03A9/doc/96ef4d46852458fb770b5641.htmlPhysical Dimensions inches(millimeters)unless otherwise noted(Continued)TO-220Power Package(T)Order Number LM341T-5.0,LM341T-12,LM341T-15,LM78M05CT,LM78M12CT or LM78M15CT NS Package Number T03B/doc/96ef4d46852458fb770b5641.html 10Physical Dimensionsinches (millimeters)unless otherwise noted (Continued)LIFE SUPPORT POLICYNATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION.As used herein:1.Life support devices or systems are devices or systems which,(a)are intended for surgical implant into the body,or (b)support or sustain life,and whose failure to perform when properly used in accordance with instructions for use provided in the labeling,can be reasonably expected to result in a significant injury to the user.2.A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system,or to affect its safety or effectiveness.National Semiconductor Corporation AmericasTel:1-800-272-9959Fax:1-800-737-7018Email:support@/doc/96ef4d46852458fb770b5641.htmlNational Semiconductor EuropeFax:+49(0)180-5308586Email:europe.support@/doc/96ef4d46852458fb770b5641.htmlDeutsch Tel:+49(0)180-5308585English Tel:+49(0)180-5327832Fran?ais Tel:+49(0)180-5329358Italiano Tel:+49(0)180-5341680National Semiconductor Asia Pacific Customer Response Group Tel:65-2544466Fax:65-2504466Email:sea.support@/doc/96ef4d46852458fb770b5641.htmlNational Semiconductor Japan Ltd.Tel:81-3-5639-7560Fax:81-3-5639-7507/doc/96ef4d46852458fb770b5641.htmlTO-252Order Number LM78M05CDT NS Package Number TD03BLM341/LM78MXX Series 3-Terminal Positive Voltage RegulatorsNational does not assume any responsibility for use of any circuitry described,no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry andspecifications.。

Cisco2500 SeriesProduct OverviewThe Cisco2500 series routers provide a variety of models designed for branch office and remote site environments. Theserouters are typically fixed configuration with at least two of the following interfaces:•Ethernet (AUI)•10BaseT Ethernet hub•Token Ring•Synchronous serial•Asynchronous serial•ISDN BRIKey Features and BenefitsCisco2500 routers come with Flash EPROM technology for simplified software maintenance. These systems support avariety of Cisco IOS software feature sets,so you can choose a feature set that supports your specific protocol environment.The software feature sets range from an IP and bridging-only to the full array of Cisco’s software functionality, includingAPPN and RMON.Mission-specific models contain less memory and less hardware functionality to support a subset of protocols.Each mission-specific model can be upgraded to full router capability by downloading a new Cisco IOS software feature set and, ifnecessary, adding memory.Cisco2500 series models can be divided into the following categories:•Single LAN routers—Models 2501, 2502, 2503, 2504, 2520, 2521, 2522 and 2523•Mission-specific, entry-level routers—Models 2501CF, 2501LF, 2502CF, 2502LF, 2503I, 2504I, 2520CF, 2520LF, 2521CF, 2521LF, 2522CF, 2522LF, 2523CF and 2523LF•Router/hub combinations—Models 2505, 2507 and 2516•Access servers—Models2509to2512(refer to the“Cisco2500Series Access Servers”section in the“Access Servers”chapter later in the catalog)•Dual LAN routers—Models 2513, 2514 and 2515•Modular routers—Models 2524 and 2525 (optional integrated DSU/CSU or NT-1)SpecificationsHardwareAll the Cisco2500 series models support the features listed in the following table.Table 5-53: Cisco 2500 Series Specifications 1. If your system requires more than 8MB of Flash memory, the additional memory must be ordered separately.2. This feature set is available with Cisco IOS Release 11.0 and later releases.3. The console cable kit includes an RJ-45-to-RJ-45 roll-over console cable, an RJ-45-to-DB-25 male DCE adapter, an RJ-45-to-DB-25 female DTE adapter, and an RJ-45-to-DB-9 female DTE adapterSoftwareTable 5-54: Cisco 2500 Series Environmental Specifications Characteristic DescriptionFlash memoryMinimum of 8 MB of Flash memory, except for the mission-specific routers which require only 4MB of Flash memory. However, depending on the Cisco IOS release that shipped with the sys-tem, it might require more memory. Refer to the “Cisco IOS Software” chapter for the minimum Flash memory required for each feature set.DRAM memory expandability Minimum DRAM required by the Cisco IOS release that shipped with the system. Refer to the “Cisco IOS Software” chapter for the minimum DRAM required for each feature set.Processor type20-MHz 68030Software options—Cisco IOS Re-lease 11.2IP Routing IP Routing PlusIP/IPX with IBM base functionality and APPN Desktop (IP/IPX/AppleTalk/DEC)Desktop (IP/IPX/AppleTalk/DEC) Plus Enterprise Enterprise PlusEnterprise/APPN/PlusMission-specific Cisco 2500 series: application-specific software Software options—Cisco IOS Re-lease 11.1 and 11.0IP RoutingIP Routing with IBM base functionality IP/IPX RoutingIP/IPX Routing with IBM base functionality IP/IPX with IBM base functionality and APPN DesktopDesktop with IBM base functionality EnterpriseEnterprise/APPN RMONMission-specific Cisco 2500 series: application-specific softwareDimensions (H x W x D)Models 2501 to 2516 and 2520 to 2525: 1.75 x 17.5 x 10.56 in. (4.44 x 44.45 x 26.82 cm)Weight (average shipping)Models 2501 to 2516 and 2520 to 2525: 10 lb. (4.5 kg)Standard componentsPower supply and cord Console cable kitRJ-45-to-DB-9 adapter19 in. rack-mount/wall-mount kitDescription SpecificationConsumption For models 2501 to 2525: 40WInput For models 2501 to 2516 and 2520 to 2525: 110 to 220 V AC, 50 to 60 Hz –48VDC Current ratingFor models 2501 to 2516 and 2520 to 2525: 1.0A at 60 Hz, 0.5A at 50 Hz Operating temperature range For models 2501 to 2516 and 2520 to 2525: 32 to 104F (0 to 40C)Nonoperating temperature rangeFor models 2501 to 2516 and 2520 to 2525: –40 to 185F (–40 to 85C)Description SpecificationHumidity (noncondensing)For models 2501 to 2525: 5 to 95%OptionsThe Cisco2500 series routers are discussed in the following sections:•Memory Options•Single LAN Routers•Mission-Specific Routers•Router/Hub Combinations•Access Servers•Dual LAN Routers•Modular Routers•Hardware Product NumbersMemory OptionsAll Cisco2500models include a minimum of8MB of Flash memory,except for the mission-specific routers which include4 MB or 8 MB of Flash memory, depending upon the Cisco IOS software release you order. Additional Flash memory canbe purchased to allow for dual banking or potential future code growth.There are two types of DRAM memory in the Cisco2500 series routers: primary and shared (packet). Primary memory isused to store the operating configuration,routing tables,caches,and queues.Shared memory is used to store incoming andoutgoing packets. In the table below, the physical configuration column lists the amount of DRAM SIMM memorysupported. The system usage column lists how the system allocates the total DRAM memory installed.Table 5-55: Shared and Primary DRAM Memory—Cisco2500 SeriesPhysical Configuration System UsageTotal DRAM Memory DRAM SIMM Shared DRAM Memory Primary DRAM Memory4MB4MB2MB2MB8MB8MB2MB6MB16MB16MB2MB14MBHardware Product NumbersThe Cisco2500series offers the hardware,memory,and NPM cable options listed in the following table.If a product numberends with an equal sign(=),the item can be ordered only as a spare.If a product number does not end with an equal sign,theitem can be ordered as a spare or as a configurable part of a system order.Other hardware options can also be ordered throughthe Cisco authorized reseller channel.Note For options that apply to most systems,refer to the“Cables and Transceivers”or“Power Supplies and Power Cords”chapters later in the catalog.Single LAN RoutersModels2501,2502,2503,2504,2520,2521,2522,and2523(see through)contain the common Cisco2500series featureslisted in the following table. In addition, these models support the network interfaces listed in Table 11-90.Note This section discusses standard models.The mission-specific models are described in the “Mission-Specific Routers”section later in this chapter.Table 5-56: Single LAN Router Network Interfaces 1. Synchronous and asynchronous.2. Synchronous.Figure 5-13: Cisco 2501 Rear ViewFigure 5-14: Cisco 2502 Rear ViewModel Ethernet Token Ring Low-Speed Serial 1Serial 2ISDN BRI 25011002025020102025031002125040102125201022125210122125221082125231821H 8825DB-9DB-60RJ-45On/off switchPowerDB-9DB-60RJ-45On/off switchPowerH 1687Figure 5-16: Cisco 2504 Rear ViewFigure 5-17: Cisco 2520 Rear ViewFigure 5-18: Cisco 2521 Rear ViewDB-15DB-60RJ-45On/off switchPowerH 1688DB-9DB-60RJ-45On/off switchPowerH 1689H 6707DB-15RJ-45On/off switchPower DB-60DB-600H 6696DB-9UTP Token Ring ISDN (BRI)RJ-45On/off switch PowerDB-60Figure 5-20: Cisco 2523 Rear ViewMission-Specific RoutersMission-specific routers are entry-level routers that are based on standard Cisco 2500hardware.However,mission-specific routers contain less memory than standard models and run reduced software images designed for CFRAD,LAN FRAD,and ISDN applications. These reduced software images disable unused ports. Mission-specific routers can be upgraded to full standard-model functionality by purchasing additional software and memory.Table 5-57: Mission-Specific Router Network Interfaces Model Ethernet Token Ring Serial Low-Speed Serial ISDN BRI 2501CF Software disabled 02002501LF 102002502CF 0Software disabled 2002502LF 012002503I 10Software disabled 012504I 01Software disabled 012520CF Software disabled 022Software disabled 2520LF 1022Software disabled 2521CF 0Software disabled 22Software disabled 2521LF 0122Software disabled 2522CF Software disabled 028Software disabled 2522LF128Software disabledH 6697DB-60DB-1510BaseTISDN (BRI)RJ-45On/off switchPowerH 66980DB-15UTP Ethernet ISDN (BRI)RJ-45On/off switchDB-60PowerDB-60Router/Hub CombinationsModels 2505,2507,and 2516support integrated hub functionality as well as all the common features listed in Table 11-89. In addition, these models support the interfaces listed in the following table.Table 5-58: 10BaseT Hub Ports Figure 5-21: Cisco 2505 Rear ViewFigure 5-22: Cisco 2507 Rear View2523CF 0Software disabled 28Software disabled 2523LF128Software disabledModel Serial Hub Ports ISDN BRI 25052802507216025162141Model Ethernet Token Ring Serial Low-Speed Serial ISDN BRI DB-60RJ-45On/off switchPowerH 8826RJ-451Cisco 2505DB-60RJ-45On/off switchPowerH 2544RJ-45Access ServersModels 2509, 2510, 2511, and 2512 are designed to function as access servers for remote node and asynchronous/synchronous routing. For complete information, refer to the “Access Servers” chapter later in the catalog.Dual LAN RoutersModels 2513, 2514, and 2515 provide higher-density LAN support and include all the common features listed in Table 11-89. In addition, these models support the interfaces listed in the table below.Table 5-59: Dual LAN Router Interface Options Figure 5-24: Cisco 2513 Rear ViewModel Ethernet Token Ring Serial 25131122514202251522DB-60RJ-45RJ-45 On/off switch PowerH 2856MDI/MDI-XswitchBRI DB-60DB-15DB-60RJ-45On/off switchPowerH 2547DB-9TOK EN RIN GFigure 5-26: Cisco 2515 Rear ViewModular RoutersModels 2524 and 2525 provide LAN and WAN access in a low-cost modular router platform that can grow with yourinternetworking needs.The Cisco 2524offers an Ethernet (AUI or 10BaseT)LAN connection,and the Cisco 2525offers a Token Ring (STP or UTP) LAN connection. Both routers can accommodate up to three WAN modules—two synchronous serial and one ISDN.The choice of synchronous serial W AN modules is as follows:•2-wire, switched, 56-kbps DSU/CSU •4-wire, 56/64-Kbps DSU/CSU •Fractional T1/T1 DSU/CSU •Five-in-one synchronous serialNote The five-in-one synchronous serial WAN module gets its name from the five types of signaling it supports, whichinclude:EIA/TIA-232,EIA/TIA-449,V .35,X.21and EIA-530.You can order a DB-60shielded serial transition cable.The router end of the cable has a DB-60 connector; the other end of the cable has the appropriate connector for the standard interface you specify.The choice of ISDN WAN modules is as follows:•ISDN BRI•ISDN with integrated NT1 deviceThe ISDN W AN modules are keyed so that you cannot insert them into the synchronous serial WAN slots.A blank slot cover is installed over unused slots.DB-15DB-60RJ-45On/off switchPowerH 2546DB-15DB-9DB-60RJ-45On/off switchPowerH 2548DB-9Figure 5-28: Cisco 2525 Rear ViewFigure 5-29: 2-Wire, Switched, 56-Kbps DSU/CSU WAN ModulePowerH 5045On/offswitchConsole port (RJ-45)10BaseT port(RJ-45)Ethernet AUI port (DB-15)LAN activity LED Ethernet link LED Auxiliary port (RJ-45)H 5271PowerOn/off switchConsoleport(RJ-45)UTP port (RJ-45)Token Ring port (DB-9)LANactivityLEDToken Ringin-ring LEDAuxiliary port (RJ-45)H 5046RJ-112-WIRE 56KDSU/CSUTXLBRX ALCDCarrier detectLEDReceive LEDAlarmLED Loopback LEDTransmit LEDCaptive screwCaptive screwFigure 5-30: 4-Wire, 56/64-kbps DSU/CSU WAN ModuleFigure 5-31: Fractional T1/T1 DSU/CSU WAN ModuleFigure 5-32: ISDN BRI WAN ModuleH 5047RJ-48S4-WIRE 56K/64K DSU/CSUTXLBRX ALCDCarrier detectLEDReceive LEDAlarmLED Loopback LEDTransmit LEDCaptive screwCaptive screwH 5048RJ-48CFTI/TI DSU/CSUTX LBRX ALCDCarrier detectLEDReceive LEDAlarmLED Loopback LEDTransmit LEDCaptive screwCaptive screwMONINOUTNETJACK Monitor jackH 5050RJ-45ISDN-BRIS/TACTIVITYISDN BRI activity LEDCaptive screwCaptive screwFigure 5-33: ISDN BRI with Integrated NT1 WAN ModuleFigure 5-34: Five-in-One Synchronous Serial WAN ModuleFigure 5-35: Blank Slot CoverRefer to the “Cisco IOS Software” chapter for detailed software feature set information.Ordering InformationProduct NumbersNote For more information, including cable illustrations, refer to the “Cables and Transceivers” chapter. The “PowerCords” chapter provides international power cord product numbers.H 5051RJ-45ISDN-BRI with NTIACT UCaptive screwCaptive screwNTIH 5049SERIALCaptive screwCaptive screwACTIVITYSerial activity LEDDB-60H 5052Captive screwCaptive screwDo not plug/unplug modules with power on.BLANKTable 5-60: Cisco2500 Series Base Models Hardware Product NumbersModel Description Product Number Cisco2501 1 Ethernet, 2 serial, AC power supply CISCO2501 Cisco2501-DC 1 Ethernet, 2 serial, DC power supply CISCO2501-DC Cisco 2501CF1 2 serial, CFRAD software, AC power supply CISCO2501CF Cisco2501LF 1 Ethernet, 2 serial, LAN FRAD software, AC power supply CISCO2501LF Cisco2502 1 Token Ring, 2 serial, AC power supply CISCO2502 Cisco2502CF1 2 serial, CFRAD software, AC power supply CISCO2502CF Cisco2502LF 1 Token Ring, 2 serial, LAN FRAD software, AC power supply CISCO2502LF Cisco2503 1 Ethernet, 2 serial, 1 ISDN BRI, AC power supply CISCO2503 Cisco2503-DC 1 Ethernet, 2 serial, 1 ISDN BRI, DC power supply CISCO2503-DC Cisco2503I1 1 Ethernet, 1 ISDN BRI, ISDN software, AC power supply CISCO2503I Cisco2503I-DC1 1 Ethernet, 1 ISDN BRI, ISDN software, DC power supply CISCO2503I-DC Cisco2504 1 Token Ring, 2 serial, 1ISDN BRI, AC power supply CISCO2504 Cisco2504-DC 1 Token Ring, 2 serial, 1ISDN BRI, DC power supply CISCO2504-DC Cisco2504I1 1 Token Ring, 1 ISDN BRI, ISDN software, AC power supply CISCO2504I Cisco25058 Ethernet UTP hub ports, 2 serial, AC power supply CISCO2505 Cisco2505-DC8 Ethernet UTP hub ports, 2 serial, DC power supply CISCO2505-DC Cisco250716 Ethernet UTP hub ports, 2 serial, AC power supply CISCO2507 Cisco2507-DC16 Ethernet UTP hub ports, 2 serial, DC power supply CISCO2507-DC Cisco25092 1 Ethernet, 2 serial, 8 async serial, AC power supply CISCO2509 Cisco2509-DC2 1 Ethernet, 2 serial, 8 async serial, DC power supply CISCO2509-DC Cisco25102 1 Token Ring, 2 serial, 8 async serial, AC power supply CISCO2510 Cisco25112 1 Ethernet, 2 serial, 16 async serial, AC power supply CISCO2511 Cisco2511-DC2 1 Ethernet, 2 serial, 16 async serial, DC power supply CISCO2511-DC Cisco25122 1 Token Ring, 2 serial, 16 async serial, AC power supply CISCO2512 Cisco2513 1 Ethernet, 1 Token Ring, 2serial, AC power supply CISCO2513 Cisco2514 2 Ethernet, 2 serial, AC power supply CISCO2514 Cisco2514-DC 2 Ethernet, 2 serial, DC power supply CISCO2514-DC Cisco2515 2 Token Ring, 2 serial, AC power supply CISCO2515 Cisco251614 Ethernet UTP hub ports, 2 sync serial, 1ISDN BRI, AC power supply CISCO2516 Cisco2516-DC14 Ethernet UTP hub ports, 2 sync serial, 1ISDN BRI, DC power supply CISCO2516-DCCISCO2520 Cisco25201Ethernet,2high-speed sync serial,2low-speed async/sync serial,1ISDN BRI inter-face, AC power supplyCisco2520-DC1Ethernet,2high-speed sync serial,2low-speed async/sync serial,1ISDN BRI inter-CISCO2520-DC face, DC power supplyCisco2520CF1 2 high-speed sync serial, 2 low-speed async/sync serial, CFRAD software,CISCO2520CF AC power supplyCisco2520LF1 1 Ethernet, 2 high-speed sync serial, 2 low-speed async/sync serial, LAN FRAD soft-CISCO2520LF ware, AC power supplyCISCO2521 Cisco2521 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial, 1 ISDN BRIinterface, AC power supplyCisco2521-DC 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial, 1 ISDN BRICISCO2521-DC interface, DC power supplyCisco2521CF1 2 high-speed sync serial, 2 low-speed async/sync serial, CFRAD software,CISCO2521CF AC power supply1. Mission-specific router. Mission-specific routers are based on standard Cisco 2500 hardware, but they contain less memory and run reduced Cisco IOS images that disable unused ports and support a subset of protocols. By adding software, and possibly memory, mission-specific routers can be upgraded to full standard router functionality.2. See the “Access Servers” chapter later in this catalog, for more information.Cisco 2521LF 1 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial, LAN FRAD software, AC power supplyCISCO2521LF Cisco 2522 1 Ethernet, 2 high-speed sync serial, 8 low-speed async/sync serial, 1 ISDN BRI in-terface, AC power supplyCISCO2522Cisco 2522-DC 1Ethernet,2high-speed sync serial,8low-speed async/sync serial,1ISDN BRI inter-face, DC power supplyCISCO2522-DC Cisco 2522CF 1 2 high-speed sync serial, 8 low-speed async/sync serial, CFRAD software,AC power supplyCISCO2522CF Cisco 2522LF 11Ethernet,2high-speed sync serial,8low-speed async/sync serial,LAN FRAD soft-ware, AC power supplyCISCO2522LF Cisco 2523 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial, 1 ISDN BRI interface, AC power supplyCISCO2523Cisco 2523-DC 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial, 1 ISDN BRI interface, DC power supplyCISCO2523-DC Cisco 2523CF 1 2 high-speed sync serial, 8 low-speed async/sync serial, CFRAD software,AC power supplyCISCO2523CF Cisco 2523LF 1 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial, LAN FRAD software, AC power supplyCISCO2523LF Cisco 2524 1 Ethernet (AUI or 10BaseT) with 3 slots for WAN modules, AC power supply CISCO2524Cisco 2524-DC 1 Ethernet (AUI or 10BaseT) with 3 slots for WAN modules, DC power supply CISCO2524-DC Cisco 25251 Token Ring (STP or UTP) with 3 slots for WAN modules, AC power supplyCISCO2525Model DescriptionProduct NumberProduct and Part NumbersPart Numbers for the Rack-Mount KitsPart Description Part Number19-in. rack-mount kit1ACS-2500RM-19=24-in. rack-mount kit A25-2500RM-24=Memory OptionsBoot ROM upgrade BOOT-2500=DRAM Memory Options4-MB DRAM SIMM (spare)MEM-1X4D=MEM2500-4U8D4-MB to8-MB DRAM SIMM Factory Up-grade8-MB DRAM SIMM (spare)MEM-1X8D=MEM2500-4U16D 4-MB to 16-MB DRAM SIMM FactoryUpgrade16-MB DRAM SIMM (spare)MEM-1X16D=MEM2500-8U16D 8-MB to 16-MB DRAM SIMM FactoryUpgradeFlash Memory Options4-MB Flash SIMM (spare)MEM-1X4F=MEM2500-8U16F8-MB to 16-MB Flash SIMM Factory Up-grade8-MB Flash SIMM (spare)MEM-1X8F=ModulesSM25-56K22-wire switched 56-kbps DSU/CSU mod-ule(for Cisco2524and Cisco2525routersonly)SM25-56K44-wire 56/64-kbps DSU/CSU module (forCisco 2524 and Cisco 2525 routers only)SM25-T1Fractional T1/T1 DSU/CSU module (forCisco 2524 and Cisco 2525 routers only)SM25-5IN1Five-in-one synchronous serial module(forCisco 2524 and Cisco 2525 routers only)SM25-BRI-S/TISDN BRI module (for Cisco 2524 andCisco 2525 routers only)ISDN with integrated NT1 device moduleSM25-BRI-U(for Cisco 2524 and Cisco 2525 routersonly)SM25-BLANKBlank slot cover(for Cisco2524and Cisco2525 routers only)Redundant Power SystemsPWR-600-AC-RPS 600W redundant AC power system for theCisco 2500 series routersCAB-RPSY-2208Redundant power supply22/18OIR Y-loadcableRedundant power supply 22/18 load cable CAB-RPS-2218=Redundant power supply 22/08 load cable CAB-RPS-2208=ACS-2500RPS=Redundant power supplyfield upgrade forCisco 2500 series routersCables1.The 19-inch rack-mount kit can only be ordered as a spare;a 19-inch rack-mount kit is included with all Cisco 2500series routers.An optional 24-inch rack-mount kit can be ordered from Cisco Systems.2.The auxiliary/console cable kit includes an RJ-45-to-RJ-45roll-over console cable,an RJ-45-to-DB-25male DCE adapter,an RJ-45-to-DB-25female DTE adapter, and an RJ-45-to-DB-9 adapter.EIA/TIA-232 male DTE interface, 10 ft (3m)CAB-232MT EIA/TIA-232 female DCE interface, 10 ft (3 m)CAB-232FC EIA/TIA-449 male DTE interface, 10 ft (3m)CAB-449MT EIA/TIA-449 female DCE interface, 10 ft (3 m)CAB-449FC EIA-530 male DTE interface, 10 ft (3 m)CAB-530MT V .35 male DTE interface, 10 ft (3 m)CAB-V35MT V .35 female DCE interface, 10 ft (3 m)CAB-V35FC X.21 male DTE interface, 10 ft (3 m)CAB-X21MT X.21 female DCE interface, 10 ft (3 m)CAB-X21FC Ethernet AUI adapter cable CAB-3CE18=Auxiliary/console cable kit 2ACS-2500ASYN RJ-45-to-DB-25 management card con-sole cableCAB-MGMT-RH Shielded power cable, United States CABS-AC Shielded power cable, Australia CABS-ACA Shielded power cable, Italy CABS-ACI Shielded power cable, Europe CABS-ACE Shielded power cable, United KingdomCABS-ACUPart DescriptionPart Number。

DME1737
Super I/O with Temperature Sensing, Quiet Auto Fan and Glue Logic
Product Features
■ General Features
— 3.3 Volt Operation (SIO Block is 5 Volt Tolerant) — LPC Interface — Programmable Wake-up Event Interface — PC99, PC2001 Compliant — ACPI 2.0 Compliant — Multiplexed Command, Address and Data Bus — Serial IRQ Interface Compatible with Serialized IRQ
Support for PCI Systems — PME Interface — ISA Plug-and-Play Compatible Register Set — 25 General Purpose Input/Output Pins — System Management Interrupt
— Standard Mode IBM PC/XT®, PC/AT®, and PS/2™ Compatible Bi-directional Parallel Port
— Enhanced Parallel Port (EPP) Compatible - EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant)
Generation — Power Supply Turn On Circuitry with Support for power
button on PS/2 Keyboard — Resume Reset Signal Generation — SMBus Isolation Circuitry (2 sets external and 1 set