NX-720H(G)/720H
56
TERMINAL FUNCTION
Display unit (X54-3830-10)
Pin No.
Name
I/O
Function
CN1 (to TX-RX unit CN514)
1
SB
I
Battery voltage DC supply
2
SB
I
Battery voltage DC supply
3
SP–
I
Speaker input –
4
SP–
I
Speaker input –
5
SP+
I
Speaker input +
6
SP+
I
Speaker input +
7
BLC
I
LCD backlight control signal input
8
MBL
I
MIC backlight control signal input
9
RLED
I
Red LED control signal input
10
GLED
I
Green LED control signal input
11
BLED
I
Blue LED control signal input
12
GND
-
Ground
13
GND
-
Ground
14
GND
-
Ground
15
EMG
O
Emergency key detection
16
GND
-
Ground
17
NC
-
No connection
18
50C
I
5V DC power supply
19
LCDDI
I
LCD data input
20
LCDCE
I
LCD enable input
21
LCDCL
I
LCD clock input
22
LCDDO
O
LCD data output
23
GND
-
Ground
24
GND
-
Ground
25
MIC
O
MIC signal output
26
ME
-
MIC ground
27
HOOK/
RXD
O
HOOK/PC serial data
28
PTT/TXD
I/O
PTT/PC serial data
29
MKEY
I/O
MIC data detection
30
POWER
O
Detection output of power switch
J1 (MIC jack)
1
MBL
O
MIC backlight control
2
SB
O
Battery voltage DC supply
3
GND
-
Ground
4
PTT
I/O
PTT/ PC serial data from radio
5
ME
-
MIC ground
6
MIC
I
MIC signal input
7
HOOK
I
HOOK/ PC serial data to radio
8
DM
I/O
MIC data detection
TX-RX unit (X57-8230-10)
Pin No.
Name
I/O
Function
CN514 (to Disply unit CN1)
1
SB
O
Battery voltage DC supply
2
SB
O
Battery voltage DC supply
3
SP–
O
Speaker output –
4
SP–
O
Speaker output –
5
SP+
O
Speaker
6
SP+
O
Speaker
7
BLC
O
LCD backlight control signal output
8
MBL
O
MIC backlight control signal output
9
RLED
O
Red LED control signal output
10
GLED
O
Green LED control signal output
11
BLED
O
Blue LED control signal output
12
GND
-
Ground
13
GND
-
Ground
14
GND
-
Ground
15
EMG
I
Emergency key detection
16
GND
-
Ground
17
NC
-
No connection
18
50C
O
5V DC power supply
19
LCDDI
O
LCD data output
20
LCDCE
O
LCD enable output
21
LCDCL
O
LCD clock output
22
LCDDO
I
LCD data input
23
GND
-
Ground
24
GND
-
Ground
25
MIC
I
MIC signal input
26
ME
-
MIC ground
27
HOOK/
RXD
I
HOOK/PC serial data
28
PTT/TXD
I/O
PTT/PC serial data
29
MKEY
I/O
MIC data detection
30
POWER
I
Detection input of power switch
Summary of Contents for Nexedge NX-720H
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