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5.2.4.9. Testing the serial control line
Outputting the data ‘H’,’L’ or signal which duty cycle is 50 % with no modem
operation. Outputting the data ‘3320Hz’ as H data,’3150Hz’ as ‘L’ data, signal
which duty cycle is 50 % or no control data with modem operation.
After operating in Paragraph 5.2.1. as page 1, operate as follows:
Operation
Display
remarks
88
8
88
Entering the testing the serial control line
0
H
Set the serial control line ‘H’ or the signal
from modem /- 30Hz as data ‘H’.
or
1
L
Set the serial control line ‘L’ or the signal
from modem /- 30Hz as data ’L’.
or
5
50
Set the serial line the signal with duty cycle
is 50 %.
or
＊
_ _
no signal on modem output line
or
#
89
exit this testing
turn off the S2(dip sw)-3,4 on CDE-885
press the S1 on CDE-885
