Typical PC Memory Usage 1st Megabyte | Digi 90031300 instruction

Figure 30

Typical PC Memory Usage - 1st Megabyte

System BIOS

BIOS Extensions (EBIOS) EMM, LIM 4.0

SCSI Interface

Ethernet

LAN Adapters

ESDI Hard Disk Drive SCSI Interface

EGA/VGA ROM BIOS

Monochrome Video Memory EGA/VGA Text Memory

Color Video Memory

System Memory (RAM) in 640K systems Can be used for peripherals in 512K systems

System Memory (RAM)

	FFFFFh	1024K
	FFFFFh	(1 Meg)
	F0000h
	EFFFFh
	E0000h
	DFFFFh
	D8000h
	D7FFFh
	D0000h	128K
	CFFFFh	128K
	CFFFFh
	C8000h	64K
	C7FFFh	64K
	C7FFFh	32K
	C0000h
	BFFFFh
	B0000h
	AFFFFh
	A0000h	640K
	9FFFFh	640K
	9FFFFh
	90000h
	8FFFFh
	80000h	512K
	7FFFFh	512K
	7FFFFh
	00000h	0

86	T1 Modem Bank

Image 96

Digi 90031300 manual Typical PC Memory Usage 1st Megabyte, EGA/VGA ROM Bios

Contents

AccelePort T1 Modem Bank Page Table of Contents T1 Modem Bank Contents List of Figures List of Tables Regulatory Statements Federal Communications Commission FCC Statement Problems with your T1 Modem Bank FCC Part Industry Canada Compliance Statement AccelePort T1 Modem Bank Overview T1 Modem Bank Chassis, Front View T1 Modem Bank Shipping Carton Contents Unpacking CSU Mode Planning the T1 WAN InterfaceCarrier Approval CSU Specification T1 Cable SpecificationLine Build Out CSU Technical Description Parameters Specified to the Carrier Requirements for T1 Modem Bank Setup Planning WorksheetsGeneral Information T1 Modem Bank Worksheet Type Number or Checkmark Description Hardware Installation T1 Modem Bank Power Supply Installation/Replacement Power Supply T1 Modem Bank Standalone or Rack Installation Standalone Installation Procedure Requirements for Rack Installations Mounting Bracket Installation for a 24-inch RackBracket Position For 19-inch Rack Bracket Position For 24-inch Rack General Rack Installation Directions T1 Modem Bank Unit Spacer 735 Line Card Daisy Chaining T1 Modem Bank Units Synchronous Ports and Terminal Port Daisy Chain Example Two Daisy Chains of T1 Modem Banks to be Connected Locally Connecting a Modem Remote T1 Modem Bank Units Fault Tolerance Mixing EPC Concentrators with T1 Modem Bank Units EPC/X Host Adapter Installation Configuring the Host AdapterInstalling the PCI Host Adapter in your Computer PCI Host Adapters Setting the I/O Port Address DIP Switch Settings for I/O Port AddressISA Host Adapters Installing the ISA Host Adapter in your Computer Factory-Set Jumper J1 Installing the Eisa Host Adapter in your Computer System ConfigurationEisa Host Adapters Factory-Set Jumpers Below 1 Megabyte Above 1 Megabyte Connecting the EPC/X Host Adapter to the T1 Modem Banks EPC/X Host Adapter Connected Locally to T1 Modem Banks Local and Remote T1 Modem Bank Units Software Installation and Configuration Setting the Node Number T1 Modem Bank Display Panel Installing Download Error Message Codes Post Failure Possible Problem Display Panel Status IndicatorsRestarting Post Display Panel Status Codes Segment Meaning Description Display Severely Errored Software Installation for Novell Systems Introduction Installing the EPC/X AIO Device Driver Installing the AIO ApplicationInstalling Snmp Installing QuickManager Configuring the T1 Modem Banks Load dgt1cfg.nlmMain Screen T1 Modem Bank Configuration Screen Software Installation for Windows NT Systems Installing the EPC/X Windows NT Device DriverInstalling the Windows NT Snmp Service Windows NT Installing RAS Installing the Management SoftwareHost System Installation Remote System Installation T1 Modem Bank Configuration Configuring via QuickManager∙ QuickManager mode ∙ terminal port mode ∙ display panel mode Line Card Status Display Line Card Options Display Configuring via the Terminal Port Configuring via the Display Panel T1 Modem Bank Configuring via the Serial Port Interface Initial screen is shown below Configuration modification User selects short-haul for the span-type by entering T1 Modem Bank Equipment List System Information Modem Switchhook Status Alarm Status LOS T1 Modem Bank Diagnostics Running Diagnostics with QuickManager Modem Test Results Running Diagnostics from the Display Panel Running Diagnostics from the Terminal Port Press ? to see the configuration/diagnostic menu Diagnostics Diagnostic Test Descriptions Test 3 Timer TestTest 1 Front Panel Test Test 2 RAM Test Test 4 Line Card Test Test 5 Modem TestTest 6 Sync Internal Loopback Test Test 7 Sync External Loopback Test Test 8 Eeprom TestTest 9 Watchdog Test Component Removal and Installation Component Level Troubleshooting Line Card Removal and Replacement Component Removal and Installation Modem Card Removal and Installation/Replacement Modem Card Removal Modem Card Types of Modem Cards Modem Revision Description Modem Card Installation/Replacement Quick Manager Modem Revision Screen T1 Modem Bank Power Supply Removal Power Supply Fan Assembly Removal and Replacement Fan Assembly Fuse Replacement AC Power Inlet Connections to the Telephone Network Alarms on a T1 Span Alarm Reason for Alarm Result of AlarmFunctional Block Diagram of the T1 Modem Bank T1 Modem Bank Interaction Physical Specifications T1 Modem Bank Power Cord Specifications T1 Modem Bank Rack Specifications Standalone Unit SpecificationsRack Specifications T1 Modem Bank Environmental Requirements Daisy Chain Cables Terminator PlugT1 Loop Back Plug Safety T1 Modem Bank CertificationEmissions Telecom Glossary Glossary T1 Modem Bank Contention for Memory Addresses Appendix a Memory Conflicts EGA/VGA ROM Bios Typical PC Memory Usage 1st Megabyte Conflicts Between 8-Bit and 16-bit Memory Devices Eisa Host Adapters Wire, Internally Clocked Mode# Baud Rate Wire Synchronous Modem External Clock Mode# Baud Rate Wire, Self Clocked Mode# Baud Rate Appendix C Terminal Port Cable Signal Pin RJ-45 Plug Connector for Sync Channels Terminal Port Appendix E Generic T1 Modem Bank Wiring Modes Eight-Wire Direct WiringEight-Wire Direct Daisy Chain Cable Wiring Four-Wire Direct Wiring Four-Wire Direct Daisy Chain Cable Wiring Restrictions on Daisy Chain Cable Lengths Daisy Chain Cable Length vs. Baud RateBaud Rate Maximum Cable Length Eight-Wire Synchronous Modem Wiring RS-232 Synchronous Modem Cables RS-422 Synchronous Modem Cables Appendix F Modem AT Command Set Basic AT Commands Dn Dial Command En AT Command Echo OptionsReturned when n = 0 or Fn Online Echo Command no operation Returned when n = 0, 1, 2, 3 or Ln Speaker Volume dummy commandMn Speaker Control dummy command Modem Identification O3-14 Enable Tone dialing Returned when n = 0, 1 orSn? Read S Register n Vn Result Code Format Yn Dummy Command Zn Recall Stored Profile Load Factory Settings Bn AutoretrainCn Data Carrier Detect Option Async Only Dn Data Terminal Ready Option Jn Dummy Command for AutoSync Gn Guard Tone OperationKn Set Flow Control Ln Dial-Up/Leased-Line Option Mn Select Sync, Async or AutoSync Mode Options Qn Communications Mode OptionRn CTS/RTS Option non-CTS Flow Control Mode Pn Dial Pulse Ratio Tn Self Test Commands Returned when n = 0, 3, 4, 5, 7 orSn Data Set Ready Option Vn View Active Configuration and Stored Profile Result Codes Returned when n = 0 orWn Store Active Profile Yn Select Stored Profile on Powerup Xn Sync Transmit Clock SourceZn=x Store Telephone Number AT% Percent Commands Gn Auto Fallforward/Fallback EnableAn Set Autoreliable Fallback Character Cn Data Compression AT\ Backslash Commands \Jn Constant DTE Speed Option \Kn Set Break Control \Tn Set Inactivity Timer \Nn Modem Protocol Options\Qn DTE Flow Control Options \Vn Protocol Result Code \Xn Set XON/XOFF Passthrough Option AT- Dash Commands JnSet V.42 Detection Phase AT Quote Commands Hn V.42bis Compression ControlNn V.42bis Dictionary Size On Select V.42bis Maximum String Length Class 1 FAX Commands +FTM=? FAX Normal Mode Transmit Capabilities+FTS=n +FRS=n Supported FAX Transmit/Receive Modulations 121122 145 Class 2 FAX Commands +FAA=n FAX Auto Answer Enable+FAXERR T.30 Session Error Report Data Bit Order Selection Copy Quality CheckingCapability to Receive +FCTCRTY ECM Retry Count +FDCC FAX Capability Parameters +FDCS Current Session Results +FDFFC Data Compression Format Conversion Current Session Parameters Begin or continue Phase C Receive Data Begin Phase C Data TransmissionError Correction Mode Control Transmit Page Punctuation +FPHCTO DTE Phase C Response Time-out Phase C Receive Data Block SizePhase C Received EOL Alignment Phase C Transmit Data Block Size Class 2 FAX Responses Registers Register Definitions S8 Pause Time for Command or Dial Modifier S10 Lost Carrier DelayS11 Dtmf Duration and Interdigit Delay S6 Wait Before Dialing S12 Guard Time S14 Bit-Mapped Options S16 Bit-Mapped Option Status S18 Modem Test Timer S19 AutoSync Protocol Support ModeAddress detector disabled Hdlc protocol S21 Bit-Mapped Options R0 CTS follows RTS10 &D2 disconnect C1 DCD is on after connect S22 Bit-Mapped Options 10 L2 is selected01 M1 is selected 111 X4 is selected Disabled S26 RTS to CTS Delay IntervalS23 Bit-Mapped Options T4 is selected S30 Inactivity Timer Value S27 Bit-Mapped Option000 &Q0, &M0 is selected L0 is selected N1 enabled J1enabledS37 Desired DCE Speed S40 Bit-Mapped Option Status Enabled S46 Automatic Sleep TimerS47 Forced Sleep Timer with Powerdown Mode in Pcmcia 255 = 256 bytes = \A3 S50 FAX/Data Mode Selection S53 Modem Operating Mode \Nn S57 V.42bis Dictionary Size see ATN Default =S51 Data/FAX DTE Flow Control Selection 011 &K3, \Q3 are selected S58 Btlz String Length Default = S59 Bit-Mapped MNP Options Default =%C1 is selected S62 DTE Rate Status Default = S65 Round Trip Delay 142 T1 Modem Bank Result Codes Display Format Options Extended Message Options Connect Ring Negotiation Progress Messages CarrierCarrier 75/1200 Carrier 1200/75 Compression Class Compression V.42bis Protocol MNP 2 Index 150 T1 Modem Bank