Lucent Technologies 1100 manual Hardware Flow Control

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Installation

Hardware Flow Control

The Switch and Remote Modules use the CTS line for flow control. If the hardware flow control is not enabled on the PC, or if a cable without the CTS line connected is used, characters can be lost when the buffer is full.

NOTE:

The DEFINITY Extender 1100 System uses the CTS lead for flow control. When the internal buffer is 1024 characters from full, the CTS lead is turned off. While CTS is off, up to an additional 1024 characters can be transmitted without any loss of data. If hardware flow control is not enabled or if a cable without the CTS lead is used, characters will be lost when this buffer overflows.

The DEFINITY Extender 1100 System uses the DCD lead to indicate whether or not the modules have made a connection. When this lead is on, the modules have made connection.

Issue 1 June 1998 3-9

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Contents Definity Extender Federal Communications Commission Statement Industry Canada IC Interference Information Contents Introduction Connecting the Switch Module GL-1 Figures Tables Important Safety Instructions Viii Issue 1 June Customer Support Information Support Telephone Number Security of Your System Preventing Toll Fraud Lucent Technologies Fraud Intervention Lucent Technologies Limited Warranty FCC Notification Repair Information Installation and Operational Procedures Customer Support Information Customer Support Information Xvi Issue 1 June About This Book Intended AudienceTerms and Conventions Security AlertHow to Use This Book Typographical ConventionsProduct Safety Labels Related Documents CallToll Fraud Security How to Comment on This Document Feedback Form This Form MAY be Photocopied Introduction1 System Operation Configuration System ConfigurationSecurity Alert Equipment List Switch ModuleCustomer-Supplied Equipment Compatibility Specifications OptionsPage Switch Module Specifications Description Considerations 10Issue 1 June Configuration2 Password ConsiderationsProgramming the Switch Module Page Configure System Exit Enhanced Terminal InterfaceTerminal Edit Line Configuring the COM RS-232D Port Configuration Stop Bits Issue 1 June 1998 Setting Parity Setting Data RateSetting Data Bit Show Settings Setting Stop BitsAdditional Modem Initialization Setting Passwords Security Alert Considerations Programming Passwords Procedure To check a password Configuring Passwords Online To disable a passwordPage Configuration Issue 1 June 1998 Installation3 Location Requirements Electrical RequirementsWiring Requirements Connecting the Switch ModuleInstallation Procedure Switch Module Back PanelDIP Switch Configuration Installation Connections for Data Transmission Female Connector on Module Hardware Flow Control Installation 10Issue 1 June Troubleshooting4 Troubleshooting LED Sequences LED Power up Sequences LED Sequence Description LED Power up Verification Sequences LED Sequence Description Module is online to a Remote Module no Rgrg Error Messages Error Messages Cause ActionError Messages Cause Action No Display on Telephone at Remote Location Specific ProblemsNo Connection/No Answer Page Reporting a Faulty Switch Module Troubleshooting Issue 1 June 1998 Glossary GL-2Issue 1 June Issue 1 June 1998 GL-3 GL-4Issue 1 June Issue 1 June 1998 GL-5 Glossary GL-6Issue 1 June