Canon imageRUNNER 2525 Series Service Manual page 307

NOTE:
The frequency and the output level of individual frequencies are in keeping with the output level set in service mode.
G3 Signal Transmission Test
A press on '4' on the keypad from the MODEM test menu selects the G3 signal transmission test.
In this test, the following G3 signals from the modem are transmitted using the telephone line terminal and the speaker.
To select a different transmission speed, use the keypad.
0
1
2
3
4
5
6
7
8
NOTE:
The output level of individual signals is in keeping with the setting made in service mode.
A press on '5' on the MODEM test menu selects the DTMF signal transmission test. In the test, the following DTMF signals from
the modem are transmitted using the telephone line terminal and the speaker. The number pressed on the keypad selects a
specific DTMF signal.
NOTE:
The output level of individual signals is in keeping with the setting made in service mode.
Tonal/DTMF Signal Reception Test
A press on '6' on the keypad from the MODEM test menu selects the tonal signal/DTMF signal reception 0 test. In this signal, the
tonal signal/DTMF signal received from the telephone line terminal can be checked to find out if it was detected by the modem.
Tonal signal reception test
MODEM TEST
OFF OFF OFF
OFF OFF OFF
DTMF signal reception test
MODEM TEST
OFF OFF OFF 5
The received DTMF signals are indicated starting
from the right using the 2nd character of the display.
V.34 G3 Signal Transmission Test
A press on '8' on the keypad from the MODEM test menu selectes the V.34 G3 signal transmission test.
The V.34 G3 signals below are sent from the modem using the modular jack and the speaker by pressing the start key.
The Baud rate can be changed with the keypad, and the Speed can be changed with the left/right arrow key.
Keypad
changes from '0' to '1' in response to detection of a signal of 462±25Hz.
changes from '0' to '1' in response to detection of a signal of 1100±30Hz.
changes from '0' to '1' in response to detection of a signal of 2100±25Hz.
Transmission speed
300bps
2400bps
4800bps
7200bps
9600bps
TC7200bps
TC9600bps
12000bps
14400bps
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8. Service Mode