US Robotics COURIER Manuale Utente Scaricare il pdf (Pagina 163)

100

101

U.S. Robotics I-modem Command Reference

Testing • Page 14-1

Chapter 14

Testing

The I-modem can perform digital and remote digital loopback tests. You can use these

tests to check the operations of the transmitter and receiver, or to locate a problem with a

remote device or a telephone line.

Test by sending an &T command or by setting Register S16. Only one test can be per-

formed at a given time. If you send a test command while the I-modem is in test mode,

you'll receive an ERROR message.

All loopback testing conforms to ITU-T Recommendation V.54.

Note When the I-modem is in synchronous

mode (&M1, &M6, &M7), testing is

not available.

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US Robotics COURIER Manuale Utente Pagina 163

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