Canon GP160DF Service Handbook page 126

CHAPTER 4 SERVICE MODE
f) V.34 G3 signal transmission test
When 8 on the numeric key pad in the MODEM NCU TEST menu is pressed, the
v.34 G3 transmission test is selected. In this test, when the start key is pressed, the V.24
G3 transmission signal from the modem, shown below, is output using the telephone
line connection terminal and the speaker. The modulation rate (baud rate) is changed
using the numeric key pad and the output speed is changed using the shift keys (up and
down arrows?).
Numeric key pad Modulation rate
0
1
2
3
4
5
Shift key
4-70
3429baud
3200baud
3000baud
2800baud
2743baud
2400baud
Output speed
2400bps
4800bps
7200bps
9600bps
12000bps
14400bps
16800bps
19200bps
21600bps
24000bps
26400bps
28800bps
31200bps
33600bps