Synchronous Mode Testing - Multitech MMH900 User Manual

Appendix I - Testing Your MMH 2834
I.5 Synchronous Mode Testing
The following tests must be run with your modem in Synchronous mode.
The test procedures for Synchronous mode are different from those for
Asynchronous mode. In Synchronous mode, you cannot access the
modem's AT commands.
There is also a Local Analog Loopback Test, documented in section I.6.
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