UX-460U
(Example: TEL speaking)
Fig. 6
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 or external telephone is in the
on-hook state.
L: The handset or 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
TEL OUT
Transfer signal to line
SPOUT
Speaker output signal
TXOUT
Transmission (DTMF) analog signal output
from modem
RXIN
Reception (DTMF, others) analog signal input
into modem
[Other signals]
5 – 10
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TX/RX SIGNAL
OGM/ICM/MEMO/PLAYBACK SIGNAL
OGM/MEMO/RECORD SIGNAL
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SIGTX
SIGRX
MODEM
(RFX96V24)
SP AMP
4051
CI DETECTOR
HS DETECTOR
TEL LINE
EXT
+5V
+24
DG
CI
TEL MUTE
RHS
HOOK SW
HANDSET
SPEAKER
TELIN
TELOUT
RXIN
TXOUT
HS
CML
CONTROL PWB
TEL/LIU PWB
VOL A
VOL B
VOL C
BZCONT
TXCONT
RXCONT
MONITOR
BZCONT
RCVOL
SP MUTE
TEL MUTE
CI
GAIN-C
CML
HS
4053
1
0
1
0
GAIN-C
TXCONT
0
1
1
0
1 0
0
1
FC100M
H
L