Gn Modem-Port Flow Control, G0 | Cabletron Systems CSMIM-T1 specification

Chapter 7: AT Commands and Registers

\Gn	Modem-Port Flow Control
\G0	Disables modem-port flow control.
\G1	Sets modem-port flow control to XON/XOFF.
\G2	Sets modem-port flow control to unidirectional XON/XOFF.
	Sets the flow control method used to pace data between modems
	during a normal mode connection. When \G1 is set, the modem
	sends an XOFF character to stop receiving data, and sends an
	XON character to resume. When \G2 is set, the modem sends
	XON and XOFF characters to the remote device but ignores XON
	and XOFF characters from the remote device.

NOTES

Reliable mode has its own method of flow control and ignores the \G setting, but \Qn settings remain active.

Both modems must have the same primary flow control characters set during normal connections. (See the :T9 and :T10 register descriptions.)

H Hang Up

H0 Disconnects from the remote system and hangs up the telephone line.

H1 Disconnects from the remote system and goes off hook in command mode.

The modem ignores ring signals and positive transitions of DTR for 5 seconds after disconnect.

NOTE

If %D is set to a value other than 0, hang up may not occur immediately.

7-16	CSMIM-T1 Hardware Installation Guide

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Cabletron Systems CSMIM-T1 manual Gn Modem-Port Flow Control, G0, Hang Up

Contents

CSMIM-T1 Hardware Installation Guide Page Mmac and CSMIM-T1are trademarks of Cabletron Systems, Inc FCC Notice REN/SOC FIC Usoc CSMIM-T1 Equipment Attachment Limitations Industry Canada Certiﬁcation Number Exclusion of Warranty Disclaimer of Liability Viii CSMIM-T1 Hardware Installation Guide Table of Contents Table of Contents Chapter Modem Guide Xii CSMIM-T1 Hardware Installation Guide General Organization of this Document Document Conventions Following conventions are used throughout this document Getting Help LoginPassword Ctron.com CSMIM-T1 Overview Software Information CSMIM-T1 Front Panel Console Port CSMIM-T1 SET UP Switch System LED IndicatorsThere are 7 indicators to show system activity and status 4 T-1 Network Access Network Status / Alarms Modem Conﬁguration Status LEDs Modem Port Status LEDs Connectivity Connecting the CSMIM-T1 to a Full T-1 LineEFS Key Number Telco Connection Information Connecting the CSMIM-T1 to a Fractional T-1 Line Telco Connection Information CSMIM-T1 Physical / Statistical Information CompatibilityHeight 11.5 in .4 cm Width Depth Non-operating SafetyOperating Electromagnetic Compatability CSMIM-T1 Hardware Installation Guide Chapter Installing the CSMIM-T1 Ethernet Jumper Settings Locating the Ethernet Jumpers Setting the Ethernet Jumpers Setting the Subnet Jumper Network Bypass Jumper Network Bypass Jumper Installing the CSMIM-T1 Install the CSMIM-T1 into the MMAC-FNB backplane as follows Mmac M8FNB Making Connections Connecting a Console TerminalLine Speed Cable Length Feet Allowed Loss Connecting a T1 Network Interface Connecting a Drop/Insert Interface POWER-UP and Test REVISION/CONFIGURATION Information AUTO-INITIALIZING the Roms Bootp Software Installation Procedures Rarp Execute the boot command see the boot command in Chapter Self-Booting the CSMIM-T1 Invoking the Console Monitor Reloading EFS Key Value Chapter ROM Monitor Commands ROM Monitor Commands Addr CommandsAddr -d Addr command display looks like this Addr -dcommand display looks like this Boot Boot -lv ﬁlename CSMIM-T1 Hardware Installation Guide Monitor boot CSMIM-T1 Hardware Installation Guide Boot -lcommand display looks like this EOF Config command display looks like this Config3 conﬁg Console-baud Command display looks like thisConsole-baud Erase Erase Image HelpImage -d ﬁlename 8 ipx Image -dcommand display looks like thisIpx command display looks like this Ipx -d Latkey -dcommand displays the current LAT key setting Command syntax isLatkey command display looks like this Latkey Mop -d 10 mop11 net Net Optionkey Optionkey command display looks like thisOptionkey -dcommand displays the current settings Ping Ports When invoked, the command displays a menu of optionsPorts -d CSMIM-T1 Hardware Installation Guide Sequence Sequence -d interface,interface Slip Slip -d port Slip Command Prompts CSMIM-T1 Hardware Installation Guide Stats Stats command display looks like thisStats -slip StatisticDescription T-1 Commands Command Command Type Description Stats -T current command display looks like this Stats -T current total all intervalset clearalarmArgument Description Field Description Frame synchronization. During this condition, the T-1 Drop/Insert Interface is out of frame sync or not receiving Reset t1 soft hard esf Keyword Deﬁnition Describes the arguments for T1loopback T-1 Parameters Keyword Description Parameter Descriptions CSMIM-T1 software comes with the following new parameters Option Description Sigproto Tniclock SET T-1 Parameters Example Ds0=2 loopstart Ds0=11 CSMIM-T1 Hardware Installation Guide Chapter Troubleshooting Procedures LEDs Description Status General POWER-UP and Boot Procedures Normal Mode CSMIM-T1 Diagnostics Activity Normal Mode Error-Free SequenceAmber Normal Mode Error Sequence SET UP Mode Setup Mode Error-Free Sequence Setup Mode Error States Boot Failures Boot Error Report Error Description Errors CSMIM-T1 sensed a hardware error during message ErrorDescription See Table Correcting CSMIM-T1 Parameters Load Server Host Not Responding Unix Host on the LAN Another CSMIM-T1 VAX VMS Load Host on the LAN CSMIM-T1 Dumps Activity Green Amber System NetworkAddress Filename Pathname Chapter Modem Guide Features Using the AT Command SET Key AT Command Factory Defaults Title Default Establishing 11-Bit Data Connections Universal Cellular Setup 3 V.32bis Cellular Connections Using AT CommandsMNP 10 V.32bis Quick Connect Cellular Only Setup Modulation Protocols V.32bis Protocols Bell 212A protocol is for 1200 bps full-duplex connections Protocol Conﬁguration Command Settings Protocol Issue %G0 Issue %G1 Speed and Protocol Connection Matrices Modem Speed and Protocol Combinations For operations at V.22 600 bps, both modems must be set to Error Correction Error Correction Power-Up Diagnostics DiagnosticsLocal Analog Loopback with Self-Test Local Analog Loopback Remote Digital Loopback with Self-Test Remote Digital Loopback Local Digital Loopback Respond to Remote Digital Loopback Automatically Terminating a Test Register S18 Connection Result Code Tables Result CodesShort Form Long Form Result Codes ATV1-M0W0 or ATV1-M0W1 Report DTE Speed ATV1-M0W2 Report Modulation Speed ATV0W0 or ATV0W1 Report DTE speed ATV0W2 Report Modulation Speed Command SET Entering Commands Repeat Last Command Issuing AT Commands at any SpeedAnswer An Auto-Reliable Fallback Character Bn ITU-T/Bell Mode\An Maximum MNP Block Size \Bn Transmit Break Bn Modem-Port Bps RateCompression Control Cn Serial-Port DCD Control @Cn CTS, DSR, and DCD Connect Message Control \Cn Auto-Reliable Buffer \C0 Dial Modifiers H2 commandATD 011225551234 Enter Dial modifiers allow you to add conditions to the telephone ATD 9,,5551234 Enter This bong signal. Once it detects it, the modem continues Operating Mode Dial ModiﬁersFirst, the modem hangs up and displays no Prompt Tone DL Redial the Last Telephone Number Dialed Dn Disconnect Buffer DelayRedials the last telephone number that the modem dialed \Dn Serial-Port DSR/CTS Control DTR ControlRepeat Dial \D0 Result DCD En Auto-Retrain Command EchoEnModem-Port Data Length \E0 En Compromise Equalizer\En Data Echo Mode Independent Serial-Port/Modem-Port Speed Restore Factory DefaultsSecondary Flow Control Guard Tone \G0 \Gn Modem-Port Flow ControlHang Up Link Negotiation Speed Detect Phase\Jn Bps Rate Adjust Identification KnMNP Extended Services \Kn Break Control 2illustrates the \Kn command Speed Matching Enables speed matchingDisables speed matching Provides partial speed matching Mode Setting on Originating Modem Bell212A Bell103 Mode Mode Setting Answer Modem Originating Modem Allows connections through V.FC Modulation SelectionAllows connections through V.32bis Possible Connection Speed bps Mn Power Level Adjustment For Cellular Telephone Connections MnMNP Class Connect Messages Sets auto-reliable mode \N n Operating Mode\N3 CSMIM-T1 Hardware Installation Guide On Enter Connect State OnSerial-Port Parity On V.23 Equalizer ControlAT-O4D12345 Enter Pulse Dial PnCheck Parity \Qn Serial-Port Flow Control QuietFallback Modulation Speeds \Q3 Modem continues to send out the characters and empty During direct mode connections, the modem does not use flowControl and ignores the \Q setting Your computer to resume transmitting data to the modem RTS/CTS Options Sn? Read Configuration RegistersRead All Registers Sn DSR Options Read Online Status Tn Test and Diagnostics CommandsTone Dial \Tn Inactivity Timer Clear Serial-Port Speed Vn Result Code Form \Vn Error Correction Result Code FormDisplay Modem Firmware Version Display Bootstrap Revision Connection Speed Reporting Wn Store Current Configuration Wn Pulse Digit CommandWn Store Complete Configuration Xn Extended Result Codes \X0 \Xn XON/XOFF Pass-ThroughYn Long Space Disconnect Yn Designate Default User Profile Zn Reset Displays the contents of all T n= n commands in decimal Commands to Change or Read RegistersRegisters S2=n Escape Code Character Range 0 255, Ascii decimal Default 43 +S1=n Ring Counter S3=n Carriage Return Character S6=n Wait Before Dialing S4=n Line Feed CharacterS5=n Backspace Character S7=n Wait for Carrier After Dial S10=n Delay for Hang Up After Carrier Loss S8=n Pause Time for Dial DelayS9=n Carrier Detect Response Time S12=n Escape Code Guard Time S11=n Dtmf Tone Dialing SpeedS14=n Bit Mapped Register S16=n Bit Mapped Register, Test Options Bit Function Decimal Value Position S18=n Test Timer S21=n Bit Mapped Register Table S22=n Bit Mapped Register Table S23=n Bit Mapped Register Table S25=n Delay to DTR and Asynchronous Time Delay S27=n Bit Mapped Register Table T2=n Timer for V.21 Mode During Multi-Protocol Answer T3=n Timer for V.21 and V.23 Answer Tone Duration T5=n Timer for V.23 Half-Duplex Intercharacter Delay T4=n Timer for Line Turnaround Delay Carrier OnT6=n Timer for DCD Turn On Delay T9=n Primary XON Flow Control Character T7=n Timer for False Answer AbortT10=n Primary Xoff Flow Control Character T12=n Secondary Xoff Flow Control Character T14=n Connect Message Delay TimerT11=n Secondary XON Flow Control Character T15=n V.24 Control Register T17=n V.32/V.32bis Connection Training Timer T16=n CTS Turn On Delay TimerBit Function Position T19=n Bit Mapped Register T22=n DSR TimerT23=n Bit Mapped Register Table T26=n Bit Mapped Register Table T42=n V.34/V.FC Connection Speed Selection CSMIM-T1 Hardware Installation Guide Appendix a Port PIN/SIGNAL Allocations Console Port Interface Ports Additional Cabletron Cables and Connectors DCE Cabletron part number 9372075 for DB25 male CSMIM-T1 Hardware Installation Guide Symbols Numerics INDEX-2 INDEX-3 INDEX-4 INDEX-5 INDEX-6 INDEX-7 INDEX-8 INDEX-9 INDEX-10