Instruction manual

66 6881086C22-B
Tone Remote Control Board Block Diagram
LOGIC
&
CONTROL
DECODE
TONES
FILTER
&
LIMITER
GT/FT
GUARD TONE
BANDPASS FILTER
LPTT
AGC
5.8V
6.5V
3.8V
TONE_DETECT
WIRELINE
INTERFACE
TX_AUDIO
BUFFER
LINE 2 +
LINE 2 -
WIRELINE
CLOSE
FOR 4-WIRE
OPERATION
OPEN
FOR 4-WIRE
OPERATION
BUFFER
RX_AUDIO
TX_AUDIO
WIRELINE
INTERFACE
WL_MUTE
VB
GUARD TONE
NOTCH FILTER
FILTER-CLK
LEVEL
ADJUST
GUARD TONE
NOTCH FILTER
LEVEL ADJUST
& FILTER
LINE
DRIVER
POWER
ROUTING
SWB +
A +
FILTER_CLK
CH_MIC
FROM
CONTROL
HEAD
BUFFER
BUFFERBUFFER
JUMPER
P101
TAPE_OUT
TO
ACCESSORY
CONNECTOR
BUFFER
BUFFER
RX_MUTE
VOLUME
ADJUST
TX AUDIO
AUX_RX_AUD
TO
RADIO
AGC_ RESET
AGC_INHIBIT
SPKR_UNMUTE
5.8V
5.0V
4.8V
9.6V
6.5V
3.6V
2.2V
RX_MUTE
DRIVER/
RECEIVER
RS232
DATA LINES
ACIM
CONNECTION
RADIO_SEL
TRUNK_TONES
TONE_DETECT
AGC_RESET
AGC_INHIBIT
GT/FT
3
SERIAL BUS
RESET
LPTT
WL_MUTE
TO
RADIO
FROM
RADIO
LINE 1 +
LINE 1 -
WIRELINE
RADIO_SEL
FILT_AUDIO
TRUNK TONES
DET_AUDIO
100K
LOW PASS
FILTER
MAEPF-26235-A