TK-7150

66

TERMINAL FUNCTION

1. Display Unit (X54-3400-10) (A/2)

Pin No.
Name Description

CN901 (To remote speaker)

1 IRS BTL output for remote speaker output.
2ES2 BTL output for remote speaker output.

CN902 (To TX-RX unit)

1ME MIC ground.
2MIC MIC signal output.
3E Ground.
4RESET Reset signal input.
5TXD Serial data input.
6RXD Serial data output.
7E Ground.
8PSW Power switch control signal output.
9SB Power input after power switch (13.6V±15%).
10 IRS BTL input for remote speaker output.
11 ES2 BTL input for remote speaker output.

CN905 (To LCD assy)

1E Ground.
2VCC 5V.
3CE Enable output for LCD driver.
4CL Clock output for LCD driver.
5DI Data output for LCD driver.
6DO Not used.
7DISP Display control signal output. “L” : Display off
8LEDA Power output for LCD backlight.
9 LEDK Ground for LCD backlight. “L” : Backlight on
10 NC Non connection.

CN906 (To Display unit B/2 : CH SW)

1E Ground.
2P4 SW position signal input 4.
3P3 SW position signal input 3.
4P2 SW position signal input 2.
5P1 SW position signal input 1.

J901 (MIC jack)

1DM Serial data input for keypad MIC.
2MIC MIC signal input.
3PTT PTT signal input. “L” : TX, “OPEN” : RX
Serial data output.
4SB Power output after power switch (13.6V±15%).
Pin No.
Name Description
5HK
Hook signal input. “L” : On hook, “H” : Off hook
Serial data input.
6ME MIC ground.
7E Ground.
8BLC
MIC backlight control signal output. “H” : On, “L” : Off

2. Display Unit (X54-3400-10) (B/2)

Pin No.
Name Description

W1 (To Display unit A/2)

1P1 SW position signal output 1.
2P2 SW position signal output 2.
3P3 SW position signal output 3.
4P4 SW position signal output 4.
5E Ground.

3. TX-RX Unit (X57-6570-10)

Pin No.
Name Description

CN700 (To ANI board)

1BUSY
2EMG Emergency signal output.
“L” : Emergency function is operated,
“H” : Emergency function is not operated
L ≤ 0.05V, H ≥ 4.6V/30kΩ load
3KEY TX control signal input.
Active low with 47kΩ pull-up to 5V
L ≤ 0.8V, H ≥ 2.5V
4AUX Emergency signal input.
Active low with 47kΩ pull-up to 5V
L ≤ 0.8V, H ≥ 2.5V
5INH MIC mute signal input. “L” : Mute
Active low with 47kΩ pull-up to 5V
L ≤ 0.8V, H ≥ 2.5V
6STON Side tone input.
7 TCNT Speaker mute signal input. “L” : Unmute
L ≤ 0.8V, H ≥ 2.5V
8DATA Data signal input.
9E Ground.
10 8C
8V. (CN700 No.10 + CN701 No.13 = 100mA Max.)
TX sens signal output.
Conventional “H” : Not TX, “L” : TX
LTR “H” : Not Link complete, “L” : Link complete