UX-B700U
FO-B1600U
5 – 14
VOLUME SETTING
LINEOUT A
RCVOL DTME
(HIGH) (LOW)
MUTE
Receiver volume setting
Low
1
1
High
0
0
Middle
1
0
DTMF Transmission
Fixed
1
1
volume setting (Receiver)
Key buzzer volume setting Fixed
Speaker volume setting
Low
1
1
Middle
1
0
High
0
1
Ringer volume setting
Low
1
1
Middle
1
0
High
0
1
DTMF speaker volume
Low
1
1
setting
Middle
1
0
High
0
1
Signal Name
Function
RHS
H:The handset is in the on-hook state.
L: The handset is in the off-hook state.
CI
Incoming call (CI) detection signal
HS
H: The handset and external telephone is in the on-hook state.
L: The handset and external telephone is in the off-hook state.
[Signals for status recognition according to input signals]
Signal Name
Function
TEL IN
Receiving signal from line or modem
SPOUT
Speaker output signal
TXOUT
Transmission (DTMF) analog signal output
from modem
RXIN
Reception (DTMF, others) analog signal input
into modem
[Other signals]
NO
Signal Name (CNLIUA)
1
+24V
2
DG
3
MICMUTE
4
TELIN
5
TELMUTE
6
RXIN
NO
Signal Name (CNLIUA)
7
TELOUT
8
TXOUT
9
CML
10
CI
11
HS-
12
RHS-
(Example: SENDING/RECEIVING)
: FAX SENDING/RECEIVING
EXIT
DAC
LPF
DAC
H
L
CI DETECTOR
HS
DETECTOR
SPEAKER
LINE
+24VL
DG
CONTROL PWB
TEL/LIU PWB
RX
TX
TEL MUTE
(H:MUTE)
Q102
IC101B
Q103
IC101D
IC101C
IC101A
IC8
0,1
0,0
1,0
1,1
RTLOOP
ADC
SIN
MIC
/LINE
SELECT
SP OUT
ENABLE
MIC ENABLE
(20438 I/A)
LINE IN ENABLE
LINE OUT ENABLE
0,20,25,30dB
LINE
SELECT
1,1
0,0
1,0
0,+4dB
SOUT
HS
SPKRP
MICP
LINEIN
LINE
OUT
MUTE,0,-6,-12dB
IC16 SCE214
FAX CONTROLLER
DTMFMUTE
RCVOL
SP MUTE
TEL MUTE
CI
CML
MIC MUTE
SPOUT
SP MUTE
(H:MUTE)
TEL IN
RXIN
TXOUT
MIC MUTE
(H:MUTE)
CML
SIGTX
SIGRX
0,6dB
HANDASET
Fig. 8
Summary of Contents for FO-B1600
Page 51: ...UX B700U FO B1600U 3 13 M E M O ...
Page 81: ...UX B700U FO B1600U Control PWB parts layout Top side 6 8 DRSNS BROWN ORGSNS ORANGE FRSNS RED ...
Page 82: ...UX B700U FO B1600U Control PWB parts layout Bottom side 6 9 FU101 FU100 ...
Page 91: ...UX B700U FO B1600U P IN YELLOW FU1 GREEN 3 3V Printer PWB parts layout Top side 6 18 ...
Page 92: ...UX B700U FO B1600U Printer PWB parts layout Bottom side 6 19 ...