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Nortel Networks CTA 500dm manual Return to On-line Data State, Enter Download State

Models: CTA 500dm

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Return to On-line Data State

34 AT commands

Return to On-line Data State

The Return to On-line Data State Command

O

instructs the CTA 500dm to return to the On-line Data State.

Use this command to determine the number of B-channels active for rate adaptation protocols that use more than one B-channel, since the aggregate network rate is returned by the CONNECT indication.

Result Codes

CONNECT rate Appears when the connection is successfully resumed, where rate is the aggregate network rate (56000, 64000, 112000, or 128000).

Immediately after this connection rate is sent, the CTA 500dm enters the data mode.

The 112000 and 128000 rates are sent only if both channels on the TCM link are in use.

NO CARRIER Appears when the connection could not be reestablished.

Enter Download State

The Enter Download State Command

Y[password]

instructs the CTA 500dm to enter the download state and prepare for the transfer of a Þle that updates the Flash EPROM. Sets the baud rate at 9600 bit/s. The password is always Nor*.

After the Þle transfer has begun, disconnecting the CTA 500dm from the attached PC or from the power supply, will put it into the Download State when it is powered back up. This is caused by loss of the Flash EPROM contents.

Immediately after the command is executed, the CTA 500dm sends a single line indication SEND PROGRAM FILE USING YMODEM-G (periodically sending GÕs until the download is started). The CTA 500dm then enters the download mode.

After Flash programming is complete, a single line indication of OK is sent.

CTA 500dm On Line Guide

P0873832 Issue 05

Image 34

Nortel Networks CTA 500dm manual Return to On-line Data State, Enter Download State

Contents

CTA 500dm The CTA 500dm in the Digital NetworkUsing a CTA 500dm compliant Norstar TAPI Service Provider, the Applications CTA 500dm feature summary About this documentFirst-time setup See Installing CTA 500dm and Norstar TAPI Service Provider softwareP0873832 Issue 6 First-time setupCTA 500 dm On Line Guide Installation and setup Wall mounting the CTA 500dm Compact ICS Setting up the ICSModular ICS Setting up the PC Conﬁguration ¥ Installing CTA 500dm and Norstar TAPI Service Provider software¥ ConÞguring the PC serial port Installing CTA 500dm and Norstar TAPI Service Provider software Conﬁguring the PC serial port8. Click OK Conﬁguring the CTA 500dm if not conﬁgured during installation Conﬁgure CTA 500dm to access PP/MP data calls Adding multiple CTA 500dm conﬁgurations Uninstalling the CTA 500dm Upgrading the CTA 500dm software18 Conﬁguration P0873832 IssueCTA 500dm On Line Guide Installing Norstar TAPI SP Conﬁgure TAPI dialing propertiesInstalling Personal Call Manager Using PCM for the ﬁrst time P0873832 Issue 22 Installing Norstar TAPI SPCTA 500dm On Line Guide ¥ Connecting to Resources on the Dial-Up Server ¥ Installing Dial-Up Server ¥ Allowing access to your PC¥ Connecting to a Windows 95 Dial-Up Server Resource sharingInstalling Dial-Up Server Allowing access to your PCConnecting to a Windows 95 Dial-Up Server Connecting to Resources on the Dial-Up Server Note Windows Explorer displays the new drive letter 7. Click OK CTA 500dm On Line Guide28 Resource sharing P0873832 IssueCTA 500dm On Line Guide ¥ TCM Ports Protocol Selection commands AT commands¥ General commands ¥ S-registers commands ¥ Call Control commands ¥ Serial Interface commands ¥ Serial Interface Control Lines commandsProﬁle commands summary ProﬁleLoad Stored Proﬁle Load Stored Proﬁle on Start-upState Write Active Proﬁle to MemoryState commands summary Return to On-line Data State Enter Download StateGeneral General commands summaryEscape Sequence set echo command 36 AT commandsCommand turn echo on defaultRequest Identiﬁcation View Parameters Set Local EchoSave Dial String Display Saved Dial StringResult Code Suppression Control Verbose ControlCTA 500dm responsesÓ on page S-registers S-register commands summaryCall Monitoring Result Code Selection Set S-Register Query S-RegisterS-register set Dial Command Call Control commands summaryCall Control Press any key before the call is completed to abort the Dial Command Answer Command Outgoing Call Bearer Service Control Hook CommandOutgoing Call Control commands summary Outgoing Call ControlIncoming Call Control Channel Speed ControlIncoming Voice Bearer Call Rate Incoming Call Control commands summarymessages. See ÒBearer CapabilitiesÓ on page 81 for more information Speech Bearer Call Answer Control Audio Bearer Call Answer ControlData Bearer Call Answer Control Ringing IndicationsTCM Ports Protocol Selection TCM Port Protocol Selection CommandRate Adaptation Protocol Selection CTI MUX Mode MP command summaryRate Multiplier Serial Interface Serial Interface commands summarySerial Interface Rate Set Parity Set Data BitsSet Stop Bits Serial Interface Control LinesThe Flow Control Command Serial Interface Control Lines commands summaryFlow Control sets the method of ßow control on the interface between theOK Appears when the value is supported DCD Operation DTR OperationCTS Operation DSR Operation Calling Line IDRI Operation Result Codes Calling Line ID commands summaryCalling Line ID Delivery Control Calling Line ID QueryCaller ID Security Add Number Caller ID security commands summaryCaller ID Security Mode Selection select CLID security modeView List Delete NumberClear List See ÒView ParametersÓ on page 38 for more informationSummary of AT commands AT commands data bearer service 68 AT commandsCommand defaultAT commands P0873832 Issue 70 AT commandsCommand DescriptionPower problem? TroubleshootingLED problem? AT command problem? ¥ See ÒSet Local EchoÓ on page 38 for more informationData call problem? ¥ Check that you are subscribing to an MP capable service Canadian & US Safety Installation Instructions Please Read Carefully AppendixImportant Safety Instructions 1. Read and understand all instructionsCANADIAN AND US REGULATIONS 15. Save these instructionsFor Class A Host equipment EMI/EMCFor Class B Host equipment Address for warranty and repairs in the United States WARRANTY INFORMATIONAddress for warranty and repairs in Canada Rate adaptation protocol speciﬁcations ¥ Point-to-Point Protocol ¥ Multilink PPPBearer Capabilities CTA 500dm LED Numeric CTA 500dm responses Initialization stringsDB-25 and DB-9 signal summary DB-25 connectionAcronyms used in this document LEDÑLight Emitting Diode