Black Box MT136A, User Manual, Page: 14 / 116

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CONTENTS
Chapter Page
11. Configuring Unit Utilities ..................................................................................68
11.1 Manual Command ....................................................................................69
11.2 Time/Date ................................................................................................70
11.3 Software Revision ......................................................................................71
11.4 LAN MAC Address ....................................................................................71
11.5 Serial Number ..........................................................................................71
12. Testing and Troubleshooting ............................................................................72
12.1 Test Overview ............................................................................................72
12.1.1 Initiating a Test ................................................................................72
12.1.2 Test Status Display............................................................................73
12.1.3 Exiting a Test....................................................................................74
12.2 Troubleshooting ......................................................................................74
12.2.1 Messages from the DSU/CSU ........................................................74
12.2.2 Troubleshooting New Installations ................................................76
12.3 Local Unit Diagnostics..............................................................................77
12.3.1 DTE & Loop (LL)............................................................................78
12.3.2 Loop Only (RT) ..............................................................................79
12.3.3 DTE Only..........................................................................................79
12.3.4 DTE With Test Pattern ....................................................................80
12.3.5 Test Pattern ......................................................................................81
12.3.6 Self-Test ............................................................................................82
12.4 Remote Unit Diagnostics..........................................................................82
12.5 DBU Connection ......................................................................................84
13. Activating Dial Functions ..................................................................................86
14. Viewing Status Information ..............................................................................88
Appendix A. Pinouts ..............................................................................................92
Appendix B. AT Commands ..................................................................................96