User's Manual

Sets the transmit attenuation level from 0 to 15 dBm for the PSTN mode resulting in a transmit level from 0
to -15 dBm.
Range: 0 to 15 dBm (Corresponding to 0 to -15 dBm transmit level).
S92 Fax Transmit Attenuation Level
Sets the transmit attenuation level from 0 to 15 dBm for the fax mode resulting in a transmit level from 0 to
-15 dBm.
Range: 0 to 15 dBm (Corresponding to 0 to -15 dBm transmit level).
S95 Extended Result Codes
This register can override some of the W command options. Set the appropriate bit to 1 to enable the
corresponding result code, regardless of the W command setting Set the bit to 0 to disable the result code.
Bit Description
0 CONNECT indicates DCE speed.
1 Append /ARQ to the CONNECT result code if the protocol is other than NONE.
2 CARRIER result code.
3 PROTOCOL: result code.
4 Reserved.
5 COMPRESSION: result code.
6 Reserved.
7 Reserved.
4 - TESTING
The modem provides five testing features to identify fault location when transmission quality is not good:
local digital loopback, local analog loop back, local analog loopback with self-test, remote digital loopback,
and remote digital loopback with self-test. These tests are initiated with the &Tn command described in
Chapter 2.
4.1 Local Analog Loopback
The local analog loopback test checks the integrity of the local computer or terminal and the local modem.
During the test, the local modem internally loops data sent from the local computer or terminal back to the
same computer or terminal as shown in Figure 4-1. During the test, data is not transmitted to the remote
modem.
If characters are looped correctly during this test, both the modem and the local computer or terminal are
functioning correctly. If incorrect characters appear on the screen, either the local computer or terminal or
the local modem is in error.
To perform a local analog loopback, put the local modem in the command state. If it is on-line, issue the
escape command + + +, to return to the command state.