RS232 Port Interface, Apx-1 | Western Telematic APS-16M, APS-8M

A. RS232 Port Interface

Figure A.1: RS232 Port Hardware

DCD and DTR hardware lines function as follows:

1.When connected:

a)If either port is set for Modem Mode, the DTR output at either port reﬂects the DCD input at the other end.

b)If neither port is set for Modem Mode, DTR output is held high (active).

2.When not connected:

a)If the port is set for Modem Mode, upon disconnect DTR output is pulsed for 0.5 seconds and then held high.

b)If the port is not set for Modem Mode, DTR output is controlled by the DTR Output option (Parameters Menu, Option 74). Upon disconnect, Option 74 allows DTR output to be held low, held high, or pulsed for 0.5 seconds and then held high.

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Western Telematic APS-16M, APS-8M manual RS232 Port Interface, Apx-1

Contents

Models Covered User’s GuidePage Grounding Secure RackingInput Supply Shock Hazard Do Not Enter Disconnect Power Table of Contents List of Figures Introduction Typographic Conventions Configuration BackupModem Communication APS-8M and APS-16M Units Front Panel Unit Description Back Panel  Power Switch Connect your Equipment to the Serial Ports Hardware InstallationGetting Started Communicating with the APS-8/16M Access Command Mode Port Status Screen Model APS-8M Shown APS-8M / APS-16M Asynchronous Port Switches User’s Guide DC Powered Units Hardware InstallationConnecting Power to the APS Unit AC Powered Units Connect a Telco Line to the Modem Port Connecting Devices to the APS Serial Ports Access to the APS-8/16M Command Mode Configuration Password Functions System SetUp Ports System Parameters Menu System Parameters Menu /F Edit Password Directory Password Directory Adding Passwords Editing and Deleting Passwords Dial Back Function Deleting the Entire Password Directory System Parameters Menu Add Name/Password MenuDial Back Example Configuration Conventions Port Configuration Port Modes RTS/CTS 3. RS232 Port Configuration Menus Conﬁguration Port Parameters Menu Modem Mode Port 3 Shown Conﬁguration APS-8M / APS-16M Asynchronous Port Switches User’s Guide Invalid Access Lockout Feature Copy Port Parameters Copying Parameters to All Ports Save User Selected Parameters APS-8M / APS-16M Asynchronous Port Switches User’s Guide Communicating with the Internal Modem Internal Modem Dial String Modiﬁers Common AT CommandsCommand Function/Options Data Terminal Ready DTR Control Command Function/Options Port Status Screen /S Status Screens Port Diagnostics Screen /SD Port Diagnostics Screen Model APS-8M Defaults Shown Port Parameters Screens /W Password Directory Screen /V Password Directory Screen Sample Values Shown APS-8M / APS-16M Asynchronous Port Switches User’s Guide Port Connection and Disconnection Any-to-Any ModeOperation Enter Disconnecting Ports Three Characters Uses the format EnterLLLEnter, where Server Enter Defining Hunt Groups Hunt Group Example Buffer Mode Passive Mode Xx Enter Reading Data from Buffer Mode Ports Port Buffers Modem Mode Operation APS-8M / APS-16M Asynchronous Port Switches User’s Guide Sending Parameters to a File Saving and Restoring Configuration Parameters Restoring Saved Parameters 10-1 Upgrading APS-8/16M Firmware 10-2 11-1 Command Reference GuideCommand Conventions 11-2 Command Response 11-3 Command Summary 11-4 Command SetFormat Response Terse 11-5 Format /C x x EnterFormat /CP Enter 11-6 Format /D/Y x x Enter2 Enter or /D/Y 3 Enter Format /E/Y x x Enter 11-7 Format /F EnterFormat /H Enter Format /I/Y Enter 11-8 Format /P x EnterFormat /S Enter Format /SD Enter Format /V Enter Format /U EnterFormat /UF Enter Format /UL Enter 11-10 Format /W x EnterFormat /X Enter Apx-1 RS232 Port Interface Stop Bits 1 or SpecificationsPower RS232 Port Interface Apx-3 Customer Service Apx-4 Trademark and Copyright InformationTrademarks Used in this Manual Apx-5 Regulatory Statements Apx-6 EMC, Safety, and R&TTE Directive Compliance Index-1 Index Index-2 Index Index-3 Index-4 Page Sterling Irvine California 949 586-9950 Toll Free