Kenwood NX-411 Service Manual page 58

NX-411
Pin No. Name I/O
1 OPT1 I/O
2 OPT3 I/O
3 26P_RD I
4 26P_TD O
5 CK -
6 OPT4 O
7 OPT10 O
8 OPT5 O
9 DGND -
10 AGND -
11 AI I
12 AO O
13 AGND -
14 5V O
15 OPT9 I
16 DTI I
17 OPT8 I/O
18 OPT11 O
19 OPT7 I/O
20 OPT2 I/O
21 TXO O
22 RXEO O
23 RXEI I
24 TXI I
25 OPT6 O
26 POW O
Solder Pad
Name I/O Signal Type
PTT2 O Digital
PTT1 I Digital
MDSW I Digital
GND - GND
TXD O Digital
RXD I Digital
RSSI O Analog
58
TERMINAL FUNCTION
Function
CN321
Refer to "CN321 26-pin connector
specifi cation" described on pages
60 to 62
Function
PTT output
PTT input
Man-down switch input
GND
Serial data output
Serial data input
RSSI output
Option board unit (X57-8120-10 B/2)
Pin No. Name
1 OPT1
2 OPT3
3 26P_RD
4 26P_TD
5 NC
6 OPT4
7 OPT10
8 OPT5
9 DGND
10 AGND
11 NC
12 NC
13 AGND
14 5V
15 OPT9
16 DTI
17 OPT8
18 OPT11
19 OPT7
20 OPT2
21 TXO
22 RXEO
23 RXEI
24 TXI
25 OPT6
26 POW
Rating and Condition
Parameter
[Output] Output Impedance
[Input] VIH
[Input] VIL
[Input] VIH
[Input] VIL
Allowable current value
VOH (Io=-5mA)
VOL (Io=5mA)
Baud Rate
VIH
VIL
Baud Rate
Output Impedance
I/O Function
CN923
I/O
I/O
O
I
-
I
I
I
-
-
-
-
Refer to "CN923 Option board
-
connector specifi cation" described
I
on page 63.
O
O
I/O
I
I/O
I/O
I
I
O
O
I
I
Min Typ Max
10k
2.8 3.3
0 0.5
2.8 3.3
0 0.5
4.0 - 5.3
0 - 0.8
19200
2.8 - 5.3
0 - 0.8
19200
10k
Unit

V
V
V
V
mA
V
V
bps
V
V
bps
