Black Box MT720A-232T Manuel d'utilisateur Page 1

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CHAPTER 2: Introduction9Figure 2-4. (a) Fradswitch-8A operating as a switch at the user side: Conversion of Frame Relay to X.25.(b) Fradswitch-8A oper

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A10Figure 2-6. Fradswitch-8A connecting HDLC devices over X.25 or Frame Relay.2.3 X.25 Link FeaturesWhen t

CHAPTER 2: Introduction11The Fradswitch employs a unique funneling method for controlling network congestion and moderatingfeeder throughput speed.CCL

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A12The Fradswitch supports four call-initiation methods, independently selectable for each channel.1) Manu

CHAPTER 2: Introduction13The command facility supports the configuration of both the local and the remote channel PADs. It includesa help function, wh

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A14For activities that involve repetitive preparation of the same set of parameters, such as channelconfig

CHAPTER 2: Introduction15• Compression of data stored in the Fradswitch’s nonvolatile memory, to allow maximum use of theavailable storage capacity. T

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A16Total number of frames transmitted and received by layer 1 (the physical layer).Total number of informa

CHAPTER 2: Introduction17• LAPB (layer 2) statistics:Total number of I, RR, RNR, REJ, and FRMR frames transmitted and received by layer 2.Number of tr

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A18This chapter provides mechanical and electrical installation procedures for the Fradswitch. The Fradswi

FCC AND IC STATEMENTS1FEDERAL COMMUNICATIONS COMMISSIONAND INDUSTRY CANADIARADIO FREQUENCY INTERFERENCE STATEMENTSThis equipment generates, uses, and

CHAPTER 3: Installation19AmbientRequirements The ambient operating temperature of the Fradswitch should be 32 to 122°F (0 to 50°C),at a relative humid

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A20Figure 3-1. Fradswitch-8A boards.3.3.2 INTERNAL JUMPERSWARNING!In order to avoid the possibility of el

CHAPTER 3: Installation21INIT–NOR jumper, JP2 This jumper is used to select the default set of configuration parameters stored in the Fradswitch. The

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A223.3.3 INTERFACE BOARDThe Fradswitch is available with three types of removable interface boards:• V.24

CHAPTER 3: Installation233.4 Installation in 19-inch RacksThe Fradswitch can be installed in 19-inch racks. Unit height is 1U (1.75"). The width

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A243.5 Cable ConnectionsThe Fradswitch has three connectors located on the rear panel that serve the X.25

CHAPTER 3: Installation253.5.3 POWER CONNECTIONAC power should be supplied to the Fradswitch through the 5-foot (1.5-m) power cable terminated by asta

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A264.1 Controls, Indicators, and ConnectorsTable 4-1 lists the Fradswitch’s front-panel indicators and con

CHAPTER 4: Operation27Table 4-1. Fradswitch-8A controls, indicators, and connectors (continued)Item Control, Indicator, or Connector Function4 SYNC In

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A28Table 4-2 lists the functions of the Fradswitch’s rear-panel controls and connectors. The numbers under

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A2NORMAS OFICIALES MEXICANAS (NOM)ELECTRICAL SAFETY STATEMENTINSTRUCCIONES DE SEGURIDAD1. Todas las instru

CHAPTER 4: Operation294.2 Operating the FradswitchAfter being prepared for operation as explained in Section 4.1, the Fradswitch normally operatesunat

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A30This section provides concise operating instructions for the Fradswitch. Remember that the informationa

CHAPTER 5: Quick Start31Figure 5-1. Fradswitch-8A opening screen.Enter the password. The factory-default password is a carriage return.The Fradswitch

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A325.2 Basic X.25 Configuration ProceduresThe following text describes the configuration procedure for the

CHAPTER 5: Quick Start33• Enter 1 at the “Enter link number to update:” prompt.• Verify that the X.25 transmission mode is DCE. This section assumes t

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A34• On the Fradswitch system control menu, select 9 (Reset), and enter “y” at the “Are you sure (y/n):”pr

CHAPTER 5: Quick Start359. The STM Async Channels are numbered according to the link number:For link number 1, in Stat-8, they are numbered 101—108.Fo

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A36The “stop search” field lets you limit the address match search, so you can define more than three rout

CHAPTER 5: Quick Start371) Link ...11 6) Link prio...42) Link ...12 7) Link prio...53) Link ...0 8) Link prio...64) Address ..

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A385.5 Management ProceduresAll of the management procedures described below are started by entering a com

TABLE OF CONTENTS3ContentsChapter Page1. Specifications...

CHAPTER 5: Quick Start39Mnemonic Call If the same destination is often used, it can be called by a mnemonic call, provided the call-initiation informa

NOTES

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FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A4Links (X.25) CharacteristicsNumber of Links 3Data Rate All the links aggregate up to 2.15 MbpsInterface

CHAPTER 1: Specifications5GeneralIndicators (9) LEDs: Power; Main links activity; Sub-channels activity; (3) Loss of synchronization; Error; Overflow;

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A62.1 OverviewThe Fradswitch-8A, Fradswitch-16A, and Fradswitch-24A are combinations of a high-performance

CHAPTER 2: Introduction7• Routing between several Frame Relay devices or networks (Frame Relay to Frame Relay switching). (See Figure 2-5.)• Connectio

FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A8Figure 2-2. Fradswitch-8A providing X.25 switching and async channel expansion.Figure 2-3. Fradswitch-8A