Northern UTA220/UTA220k guide

D-Channel X.25

Table 12-12: PAD Service Signal Control

Value

Description

0No PAD service signals or PAD prompt

1PAD service signals in standard form but no PAD prompt

5PAD service signals and PAD prompt in standard form *

*default

Parameter 7: Action of PAD on Break from DTE

	Parameter 7 specifies the action taken by the PAD when the
	PAD receives a break signal from the local DTE. The break
	signal allows the DTE to signal the PAD without loss of
	character transparency. The PAD also relays a break signal to
	the DTE when the PAD receives a break from the remote DTE.
	The PAD responds to the break only when a packet call is
	established and the PAD is in the PAD data transfer mode.
	Upon receipt of the break, all data stored by the PAD is
	forwarded. The break signal consists of binary 0s for more than
	135 ms.
	Table 12-13: PAD Action on DTE Break

Value	Description

0	The PAD does nothing on receipt of a break in PAD data transfer, PAD
	command, or PAD connect-in-progress mode (while establishing a
	call) *

1	An expedited interrupt packet is transmitted by the PAD prior to the
	forwarding of the stored PAD data. If a previously transmitted interrupt
	is not acknowledged, the break interrupt will wait until
	acknowledgment of the previous interrupt is received.

2	A reset request packet is transmitted to the remote end after the
	forwarding of the PAD data.

5	The PAD transmits an expedited interrupt packet, any stored PAD data
	is forwarded, and an a X.29 indication of break packet is transmitted

8	Escape from PAD data transfer. Equivalent to a PAD recall

21	Transmitted data is discarded, and expedited interrupt packet is
	transmitted if there is no outstanding interrupt, stored PAD data is
	forwarded, and an X.29 indication of break packet is transmitted.
	When data must be discarded, parameter 8 is set to 1. When the break
	actions are completed, parameter resets to 0.

Parameter 7 can be any added combination of the above values. * default

UTA220/UTA220k

12-23

Image 99

Northern UTA220/UTA220k Parameter 7 Action of PAD on Break from DTE, Signal allows the DTE to signal the PAD without loss

Contents

UTA220/UTA220k Terminal Adapter User Guide Copyright Industry Canada IC Requirements Shielded Cables Canadian Emission Requirements Load Number Preface and Statement of Application Preface Contents 25 bis Dialer Operation LCD Operation Contents Reset Softload DiagnosticsMaintenance Appendix A. Specifications DTE Interface PIN Descriptions Return Procedures Index For Questions Schedule ServiceTo Access Issues Documentation Customer Response Card Business Reply Mail Compatibility FeaturesOther Features Chapter Introduction Physical Description Operation Rear Panel EIA-232 Configuration Functional LED Description Chapter Installation Receipt InspectionSite Preparation Installation Power ConnectionIsdn Connection DTE Connection DTE Interface Specifications Installation UTA220/UTA220k Switches and Straps Chapter Getting StartedCover Removal Signal Ground Switch and Strap Settings OFF 35/EIA-232 Interface V.35 EIA-232 interface Card Interface Card Removal V.35 Switch Location DIP Switch Options Setup Central Office Switch Step LCD Screen Action Display Channel Prov CHANGE? P3 Data TEI = DIS Getting Started UTA220/UTA220k National Isdn ChapterIsdn Basics Isdn Standards Basic Rate Interface Terminal AdaptersIsdn Basic Rate Interface Points Isdn Switches Isdn Service NI1 Switch Version Default Mode Custom Mode Switch Version Default Mode Other Modes TA Switch TA Switch Version TypeIsdn Addresses and Identifiers Isdn Channels Channel Data Service Channel Signaling Protocols Channel Data ProtocolsLayer One Layer Three Layer Two Chapter LCD Operation LCD MenusLCD Operation Menu Option Summary Navigation button directions Port Config R R E N T OPTIONS? Cont T R DEL OP T I on S ? O T OC O L OPTIONS? Menu Option Summary Loading Port TEST? Current Port OPTIONS? View Bis Message Frames Operation in V.25 bis ModeChapter Bis Dialer Operation Selecting V.25bis DTE Interface Pins DTR Pin OperationDCD Pin Operation CTS Pin Operation Command ProceduresCommands Dial Command CRN Connect Incoming Calls CIC Indication MessagesCall Connect Indication CNX Response Messages Incoming Call Indication INC Bis Dialer Operation UTA220/UTA220k Configuration Chapter EIA-366 Dialer OperationPin Function Interface Signal Definitions Present Next Digit PND Digit Present DPR Example Dial Sequence Abandon Call and Retry ACR Escape Sequence + + + Chapter AT Command OperationAT Command Statement AT Command Mode Monitor Display Creating a Command Statement ATCommand Statement Guidelines Command Statement Buffer Backspace KEY Repeating a Command aNumbered Commands Group Commands Supervisor Command Mode Command Scope Chapter Rate Adaption Rate AdaptionLink Link Options Flow Control and Pin Options Options 120 Rate Adaption UTA220/UTA220k Option Select Bonding on the UTA220 Placing a Bonding Call Disconnecting a Bonding Call Synchronous Modes Synchronous Mode 1 Sync Pause ModeSynchronous Mode 2 Dial Stored Number Mode Chapter Synchronous Operation 11-2 Chapter Channel Functional DescriptionPAD Initialize the PAD Atdd CommandAT@P1=P or AT@P1=D Command Establishing AN X.25 Session Establishing an X.25 Virtual Connection Escaping to PAD Command Mode Escaping to AT Command ModeDisconnecting the X.25 Virtual Connection PAD Command SET Common Apparent Problems Clear CLR Issuing PAD CommandsReset Status Stat SET Interrupt INT Read PAR? Set and Read SET?Remote Read RPAR? Profile Read/Save Prof Remote Set and Read RSET? PAD Select Closed User Group CUG FacilitiesReverse Charging R Network User Identification NUI Flow Control Parameter Negotiation Recognized Private Operating Agency Command Description Response 1PAD Command Set Summary 2PAD Service Signals Command Extension Reason PAD Service Signals CLR INV PAD Reset Service SignalsPad Clear Service Signals Signal CLR RNA Saving the X.3 Parameter ConfigurationParameters and Values CLR NP 5Default X.3 Parameters Parameter Description Default RemarksDTE 6CCITT X.3 Parameter Profiles Description Transparent Simple Parameter 1 Pad Recall Character 6CCITT X.3 Parameter ProfilesValue Description Parameter 3 Selection of Data Forwarding Characters Parameter 2 Echo Value Parameter 4 Selection of Idle Timer Delay Parameter 5 Ancillary Device Control Parameter 6 Control of PAD Service Signals Parameter 7 Action of PAD on Break from DTE Signal allows the DTE to signal the PAD without loss Parameter 9 Padding after Carriage Return Parameter 8 Discard Output Parameter 11 Binary Speed of Local DTE Parameter 10 Line Folding Parameter 13 Line Feed Insertion after Carriage Return Parameter 12 Flow Control of PAD by Local DTE Parameter 14 Padding after Line Feed Parameter 16 Character Delete Parameter 15 Editing Parameter 17 Line Delete Parameter 18 Line Display XXX CR LF Parameter 19 Editing PAD Service Signals Parameter 21 Parity Treatment Parameter 20 Echo Mask Parameter 22 Page Wait 28 Page Wait Software Format Chapter SoftloadTA Software Architecture Software Sets TA Power-Up Sequence 1PROM Error MessagesLCD Message Description Softload Operation Set/Display Softload Password %P1 Product Number Active Software 1D Alternate Software 1B Request Softload Product Version Information $Q Initiate Software Download $Y=x Code Hex Description 5General Softload Error CodesCopy Active Flash $Y2=x S59 Softload 6CPU Softload Error Codes 6AH7AH Typical Local Softload Session Swap to Alternate Software $T=x Error 13-10 2B+D Loopback Chapter DiagnosticsCommunication Diagnostics Global Tests Port Tests Local Terminal LoopbackLocal Loopback Test Local Loopback Test Digital Loopback Test Digital Loopback Test Bilateral Loopback Test Bilateral Loopback Test View Product Information Diagnostic Status DisplayView Diagnostic Code Front Panel Keypad Test Chapter Maintenance MaintenanceFuse 15-2 Appendix a Specifications Power Consumption Supplementary ServicesDimensions Power Requirements Null Appendix B Factory Default Settings Enbloc Factory Default Settings Factory Default Settings UTA220/UTA220k AT&T 5ESS AT Command SetAppendix C Description Value DMS100 PVC IC-1 DMS100 PVC IC-0 AT Command Set DTR RTS/CTSXON/XOFF CTS always on when On-line Data Set Ready DSR DSR always on Off default One default RTS Sync PVC Non-PVCdefault Call Rpoa DLE ESC,BEL,ENQ,ACKNAK Default 1,1,0 ENQ Default 2,1,1 L22= Wait Range Table D-1U Interface RJ45 Pin Functions Appendix D InterfacesIsdn Interface Interfaces Table D-2EIA-232/C/V.24 Pin Functions EIA-232C Function Pin Table D-3V.35 Pin Functions DB-25 34 Pin Function Table D-4Ports 3 and 4 Pin Functions CH/CI EIA-366A RequirementsRL/CG DLO DTE Interface PIN Descriptions Ring Indicator Receive ClockData Terminal Ready Interfaces UTA220/UTA220k Appendix E Network Option Values Parameter Factory Default Range Value Port 3 Data TEI Appendix F Ascii and Ebcdic Characters SMM Ascii and Ebcdic Characters ACK0 Ascii and Ebcdic Characters Ascii and Ebcdic Characters Ascii and Ebcdic Characters 253 254 255 Trailing pad Appendix G Abbreviations and Acronyms CBX DAA Ebcdic Hdlc LSD Pots RMT LB Telset Abbreviations and Acronyms UTA220/UTA220k Appendix H Status and Connection Messages Status and Connection Messages UTA220/UTA220k Configuring D- and B-Channels Appendix I 128K Clear Channel Leased-Line Service AT&M2 Configuring the Port and Protocol Return Procedures Introduction Factory Repair Index DTE Page Warranty UTA220/UTA220k