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Frequency Test
A press on '2' on the keypad from the MODEM test menu selects the frequency test.
In this test, signals of the following frequencies from the modem are transmitted using the
telephone line terminal and the speaker. To select a different frequency,
Keypad
1
2
3
4
5
6
7
MEMO:
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.
4
Keypad
0
1
2
3
4
5
6
7
8
MEMO:
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.
4-48
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Frequency
462Hz
1100Hz
1300Hz
1500Hz
1650Hz
1850Hz
T-4-61
T-4-61
2100Hz
Transmission speed
300bps
2400bps
4800bps
7200bps
9600bps
TC7200bps
TC9600bps
12000bps
T-4-62
T-4-62
14400bps
MEMO:
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
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.
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
0
1
2
3
4
5
Baud rate
3429baud
3200baud
3000baud
2800baud
2743baud
2400baud
T-4-63
T-4-63
F-4-14
F-4-14
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