UF-E1
83
4.6.
Communications
This section explains general troubleshooting procedures for the 400 series of Information Codes. These
errors are primarily caused by poor telephone line quality (loss, noise, echo, etc.). This unit is furnished with
Test Mode 1 to assist in troubleshooting line quality problems.
It is suggested that both the transmitting unit and receiving unit be adjusted. This section gives relevant
parameters in Test Mode 1 for both the transmitting and receiving sides. If no improvement is realized after
the parameters are adjusted, it is recommended that the parameters be returned to the default settings.
4.6.1.
Communication Trouble
START
No
Yes
Is this an international
#28 : Off
ALL B&C
#27 : 1st
2nd
#22 : 14400 bps
12000 to 2400 bps
#26 : 75 ms
500, 1000ms
communication?
Transmitting Side
Receiving Side
#20 : -9 dBm
-9 to -15 dBm
To improve a poor S/N (signal -to- noise ratio)
#17 : 14400 bps
12000 to 2400 bps
#21 : -43 dBm
-33, -38, -48dBm
#18 : 14400 bps
12000 to 2400 bps
#29 : 200ms+1.2s
100ms+1s, 200ms+1s, 200ms+1.2s
Transmitting Side
Receiving Side
#24 : 4dB
0, 8, 12dB
Receiving Side
To equalize loss (Amplitude Distortion) between the fax unit
and the phone company exchange
#27 : 1st
2nd
#26 : 75 ms
500, 1000ms
To cope with shifted signal sequences caused by an echo
#39 : 64
32, 96, 128, 160, 192, 244, 255 line
To cope with impulse noise
Receiving Side
Perform a communication test after changing settings.
Transmitting Side
Receiving Side
Содержание UF-E1
Страница 2: ...UF E1 UF E1CN 2 ...
Страница 11: ...UF E1 7 External View ...
Страница 12: ...UF E1 8 Control Panel ...
Страница 20: ...UF E1 16 Notes ...
Страница 24: ...UF E1 20 20 Remove five connectors 21 Three Screws F9 22 Remove SC PCB 6012 21 20 22 21 20 ...
Страница 30: ...UF E1 26 30 Remove Cover ASF 7009 31 Remove D Gear C35 7005 32 Remove ASF Roller 7006 30 31 32 ...
Страница 39: ...UF E1 35 3 6 General Circuit Diagram ...
Страница 50: ...UF E1 46 14 nASFB NCU PCB CNJ25 14 PIN No Signal Name Destination Signal Waveform Function 3 3V OFF 0V ON ...
Страница 204: ...UF E1 200 ...
Страница 270: ...UF E1 266 A B 2 3 1 4 Ink Mark Detect EE SY113 PC5 E K A C UDZS5 1B D20 K A NotMount Ink Mark Detect Sensor ...
Страница 271: ...UF E1 267 C D 2 3 4 1 CNP46 2 CNP46 1 CNP46 3 TO NCU CNP46 R VLED B GND G OIS FBN8710 ...