Telenetics DSP 9612 manual Appendix a Troubleshooting, Problem Solving

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Appendix A

Troubleshooting

n the event you encounter a problem using your Telenetics modem, Irefer to the troubleshooting information in this appendix.

,

IMPORTANT

If you encounter a problem with your modem, be sure the switches on the bottom of the modem are set to the appropriate positions. If a switch is halfway between an on and off setting, the modem will not operate properly.

Problem Solving

Table A-1 offers troubleshooting solutions for modem problems.

Table A-1. Troubleshooting Suggestions

If…

Perform These Procedures…

 

 

Modem does not respond to

Check the power supply input for your

the attached DTE and the all

specific model (see page 27).

LEDs are off.

 

 

 

Modem does not receive data,

The receive line pair may be

and the DCD and RxD LEDs

disconnected from the modem. Make

are off.

sure the transmission line connection

 

to the modem is accurate and secure.

 

The receive signal level may be below

 

the CD threshold. Set SW1-5 ON to

 

see whether configuring the modem

 

for a 43 dBm threshold resolves the

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Contents DSP 9612 Flash Poll Modem User’s Guide Contents Contents Chapter Introduction Features Network of Multipoint Configuration ApplicationsIntroduction Chapter Installation Unpacking Your HardwareAdditional Items You Need Installation Hardware OverviewFront View Installation Summary Finding a Suitable LocationConfiguring the Modem SW1 DIP Switch Settings SW1-1 through SW1-4 − Transmit Level SW1-5 − Receiver Dynamic Range SW2 DIP Switch Settings SW2-1  FSK Mode SW2-3  FSK Soft Carrier Bell 202 FSK Mode Only SW2-6  FSK CD Delay Bell 202 Mode Only SW3 DIP Switch Settings SW3-1 − Fast Poll Auto Rate/FSK SW3-2 − Data Rate Fast-Poll Mode Only SW3-5 − Transmitter Termination SW3-8 − Carrier Control Connecting to a Transmission Line Shows the transmission line interfaceConnecting to a Voltage Source Transmission Line InterfaceConnecting an RS-232 Device LEDs DLBLoopback Control Switch Illustrates these three diagnosticsAppendix a Troubleshooting Problem SolvingProblem Appendix B DIP Switch Summary DIP Switch Summary Appendix C Specifications General SpecificationsMechanical Specifications Power supplyInterface Connector Pin Assignments Environmental Specifications RS-232 DTE InterfaceCompliances Specifications Appendix D Compliances Department of Canada Statement Appendix E Limited Product Warranty Appendix F RMA Procedure Return Merchandise Authorization RMA ProcedureRMA Procedure