Testing The Connection; Overview - 3Com 56K Command Reference Manual

14

Overview

T
ESTING THE
This chapter contains information about:
Testing the Business Modem using AT&Tn
Testing the Business Modem using S-Register 16
Your 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.
Testing is done by sending the AT&Tn command or by setting Register
S16. Only one test can be performed at a given time. If you send a test
command while the modem is in test mode, you'll receive an ERROR
message.
All loopback testing conforms to ITU-T Recommendation V.54.
C
ONNECTION