CHAPTER 13 TROUBLESHOOTING
COPYRIGHT© 2002 CANON INC.
2000
CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002
13-147
5.5.6
MODEM NCU Test (4: MODEM NCU)
Use it to execute a transmission test for MODEM NCU. In a modem test, you can make
sure that the signals from the modem are transmitted normally by listening to the sound
of signals from the speaker.
You can also use it to make sure that the received total signal and DTMF signal are cor-
rectly detected by the modem. To end the test, press the Stop key.
Type
Frequency test
G3 signal transmission test
Tonal signal reception test
V.34 G3 signal transmission test
Description
The modem sends tone signals from the modular jack and the
speaker.
Use it to generate the G3 signal coming from the modem using the
telephone line terminal and the speaker.
Use it to monitor a specific frequency and the DTMF signal re-
ceived from the telephone line terminal by causing them to be in-
dicated on the LCD (i.e., the presence/absence as detected). The
reception signal is generated by the speaker.
The modem sends V.34 G3 signals from the modular jack and the
speaker.
a.Frequency Test
A press on ‘2’ on the keypad from the MODEM NCU Test menu selects the frequency
test. In this test, signals of the following frequencies from the modem are transmitted us-
ing the telephone line terminal and the speaker. To select a different frequency, use the
keypad.
Keypad
1
2
3
4
5
6
7
Frequency
462 Hz
1100 Hz
1300 Hz
1500 Hz
1650 Hz
1850 Hz
2100 Hz
Memo
The frequency and the output level of individual frequencies are in keep-
ing with the output level set in service mode.
Содержание iR2000 Series
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