Telenetics MIU14.4, MIU9.6, MIU28.8 manual Diagnostics

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15.DIAGNOSTICS

The following pages provide software and hardware techniques for diagnosing communication problems and thereby isolating the problem at either the local modem, the remote modem or the interconnecting line.

The following AT&Tn commands form part of the CCITT V.54 protocol and can be used for diagnostic testing.

Note: &Tn commands can only be used when the modem is configured for &Q0 <CR> (unbuffered/direct asynchronous mode).

MIU Installation, Operation & Diagnostics Edition: March 30, 1998

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Contents Installation, Operation & Diagnostics Telenetics Corporation Table of Contents Standards USAProduct Overview MIU Installation, Operation & Diagnostics Edition March 30 General Product Specifications MIU28.8Power Modes Mode Description Power Consumption Power OnPower Down SleepModem Specifications MIU2.4 MIU9.6 MIU14.4 MIU28.8Power Connections Serial Data Port PIN-OUTS DIP Switch Settings Not Applicable Auto Dial Feature LED IndicatorAuto Reset Feature Outline Drawing & Mounting Modem Configuration Telephone Numbers &Z0= Factory Configuration ~ MIU2.4 Active ProfileStored Profile Factory Configuration ~ MIU9.6 Active Profile Telephone NumbersFactory Configuration ~ MIU14.4 Active Profile Factory Configuration ~ MIU28.8 Active Profile Diagnostics Result Code Description T0 Terminate Test in ProgressT1 Initiate Local Analog Loopback See Figure Grant Remote Digital Loopback RDL Requests No FunctionPerform Local Digital Loopback See Figure T5 Deny RDL Requests T6 Initiate Remote Digital Loopback See FigureT7 Initiate RDL with Local Self Test See Figure Result Codes DescriptionT8 Local Loopback with Self Test See Figure T6, &T7, or if on-lineMIU Installation, Operation & Diagnostics Edition March 30 MIU Installation, Operation & Diagnostics Edition March 30 MIU Installation, Operation & Diagnostics Edition March 30 Received Line Signal Quality S86 Connection Failure CauseMIU Installation, Operation & Diagnostics Edition March 30 MIU Installation, Operation & Diagnostics Edition March 30