Kenwood TK-7180 - KO4BB's Home Page

TERMINAL FUNCTION
TK-7180
Pin No. Name Description
21 SB Power output of switched power supply.
22 SB Power output of switched power supply.
23 8C 8V output.
24 GND Ground.
25 SPO Speaker output.
26 SPO Speaker output.
Name
GND (GND)
TXD1
(PTT)
Description
to Scrambler board
Ground.
PTT signal output. L : TX, H : Not TX
L≤0.45V, H≥4.7V/25kΩ load
(PTT signal input) Actiive low.
L≤1.0V, H≥4.0V, Inut voltage : 0V~5.0V
27 SPO Speaker output.
OPT1 (DODE Scramble code signal output 1.
28 SPO Speaker output.
SELECT1)
L≤0.45V, H≥4.7V/25kΩ load
29 SPO Speaker output.
OPT3 (CODE Scramble code signal output 2.
30 SPO Speaker output.
CN804
1 IGN Ignition sense input.
SELECT2)
OPT4
(ECHO PTT)
L≤0.45V, H≥4.7V/25kΩ load
Echo PTT signal output. L : TX, H : Not TX
L≤0.45V, H≥4.7V/25kΩ load
2 GND Ground.
OPT5 (CODE Scramble code signal output 4.
Solder Land
SELECT8)
TXO
L≤0.45V, H≥4.7V/25kΩ load
MIC signal output (AC coupled) before
Name
Description
(TX OUT)
pre-enphasis. Zo>2.2kΩ, 130±50mVp-p typ.
to ANI board
(Standard modulation)
GND (A–)
Ground.
OPT2
Scrambler control signal output.
OPT1
TX sens signal output. Conv. L : TX, H : Not TX
(SCRAMBLE)
L : ON, H : OFF. L≤0.45V, H≥4.7V/25kΩ load
(CH BUSY)
LTR L : Link complete, H : Not link complete
RXEO
Audio signal output (DC coupled) after
L≤0.45V, H≥4.7V/25kΩ load
(RX OUT)
de-enphasis. Zo>30kΩ, 1±0.3Vp-p typ.
OPT3
TX control signal input. Active low.
(Standard modulation)
(KEY)
L≤1.0V, H≥ : 4.0V, Input voltage 0V~5.0V
TXI
MIC signal input (AC coupled) before
OPT4
PTT signal output. L : TX, H : Not TX
(TX IN)
pre-enphasis. Zin>2.2kΩ, 130±50mVp-p typ.
(PTT)
L≤0.45V, H≥4.7V/25kΩ load
(Standard modulation)
OPT5
Emergency signal output.
RXEI
Audio signal input (DC coupled) after
(EMERGENCY)
L : Emergency function is operated,
(RX IN)
de-enphasis. Zin>15kΩ, 1±0.3Vp-p typ.
H : Emergency function is not operated
(Standard modulation)
L≤0.45V, H≥4.7V/25kΩ load
OPT6 (CODE Scramble code signal output 3.
5E (A+)
5V power supply (78mA max.).
SELECT4)
L≤0.45V, H≥4.7V/25kΩ load
DTI
Data signal input. Zin>22kΩ, 600±200mVp-p
8C (+V)
8V AVR output. 8.0V typ, 100mA max.
(DATA OUT)
(Standard modulation)
to GPS receiver
TCTL
Speaker mute signal input. H : Unmute
GND (GND)
Ground.
(TONE CTRL)
L≤0.8V, H≥4.2V, Input voltage : 0V~5.0V
RXD1* 1
Data output.
AUDIH
MIC mute signal input. L : Mute
(DATA OUT1)
(AUDIO INHIB)
RXD2* 1
Data output.
OPT2
Emergency signal input. Active low.
(DATA OUT1)
(AUX I/O)
L≤1.0V, H≥ : 4.0V, Input voltage 0V~5.0V
5E (+5V)
5V
STON
(SIDE TONE)
Side tone input. 1kHz, 5Vp-p
*1 : Depending on the connected optional accessory, the DATA
OUT1 may connect to either RXD1 or RXD2.
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