Uncategorised

Details: Written by: Jari Ojala; Category: Uncategorised; Published: 19 June 2025; Hits: 161

Pin	Description	Remarks
1	50 V on active LOW	Output open collector
2	Shutdown active LOW	Output open collector
3	Fault reset active LOW	Output max. 3.3 V
4	GND
5	GND
6	Current meas module A 0-10 V	Output analog
7	Over current module A active LOW	input max. 3.3 V
8	Shutdown active LOW	Output open collector
9	Current meas module B 0-10 V	Output analog
10	Over current module B active LOW	input max. 3.3 V
11	Shutdown active LOW	Output open collector

J1 Connector Vds control module A-B

Pin	Description
1	50 V on active LOW	Output open collector
2	Shutdown active LOW	Output open collector
3	Fault reset active LOW	Output max. 3.3 V
4	GND
5	GND
6	Current meas module C 0-10 V	Output analog
7	Over current module C active LOW	input max. 3.3 V
8	Shutdown active LOW	Output open collector
9	Current meas module D 0-10 V	Output analog
10	Over current module D active LOW	input max. 3.3 V
11	Shutdown active LOW	Output open collector

J2 Connector Vds control module C-D

1	GND
2	BIAS ON module A Switch bias voltage on. PTT delay 20 ms	Output Active LOW
3	+12 V	Output
4	LM35_A analog in	Input
5	+5 V LM35 Vcc	Output
6	GND
7	+12 V	Output
8	BIAS ON module B. Switch bias voltage on. PTT delay 20 ms	Output
9	GND
10	NC

J3 Connector bias module A

1	GND
2	BIAS ON module C. Switch bias voltage on. PTT delay 20 ms	Output Active LOW
3	+12 V	Output
4	LM35_B analog in	Analog Input
5	+5 V LM35 Vcc	Output
6	GND
7	+12 V	Output
8	BIAS ON module D. Switch bias voltage on. PTT delay 20 ms	Output
9	GND
10	NC

J4 Connector bias module B

1	Reflected 0-13 V (400 W à2,826)	Input
2	Forward 0-13 V (3200 W à7,994V)	Input
3	GND

J5 Connector Power sensor

1	Vds scaled	Input
2	GND

J6 Vds scaled 0-3.3 V

1	+12 V
2	Relay (open collector)	Output

J8 Connector J8 RTX-relay control

1	PTT active LOW	Input
2	GND

J7 Connector PTT

1	GND
2	Serial RX TTL 5V	Input
3	Serial TX TTL 5V	Output
4	+5 V 1.5 A

J9 Connector Nextion display

1	NC
2	GND
3	PTT	Input
4	TX INH	Input
5	GND
6	NC
7	BAND A	Input
8	NC
9	BAND B	Input
10	NC
11	BAND C	Input
12	NC
13	BAND D	Input
14	GND 1
15	TX INH	Input
16	NC

J10 Yaesu Linear port

1	+12 V
2	160 m (open collector)	Output
3	80 m (open collector)	Output
4	60 m (open collector)	Output
5	40 m (open collector)	Output
6	30 m (open collector)	Output
7	20 m (open collector)	Output
8	17 m (open collector)	Output
9	15 m (open collector)	Output
10	12 m (open collector)	Output
11	10 m (open collector)	Output
12	NC

J11 LPF control

1	FAN+ 5-12 V temperature controlled A	Output
2	GND

J12 FAN power

1	FAN+ 5-12 V temperature controlled A	Output
2	GND

J13 FAN power

1	FAN+ 5-12 V temperature controlled A	Output
2	GND

J14 FAN power

1	FAN+ 5-12 V temperature controlled B	Output
2	GND

J15 FAN power

1	FAN+ 5-12 V temperature controlled B	Output
2	GND

J16 FAN power

1	FAN+ 5-12 V temperature controlled B	Output
2	GND

J17 FAN power

1	+12 V 2 A	Input
2	+5 V 500 mA	Output
3	+3.3 V 500 mA	Output
4	GND

J18 Power connector

1	Power signal 0-3.3 V	Input
2	GND

J22 Harmonic load power sensor

1	Closing relay max 1 A	Output
2	COM	Output

J23 Vds Power supply control

1	REFL	Input
2	REFL	Input
3	FORW	Input
4	FORW	Input
5	GND
6	GND

J24 WaveNode sensor MiniDIN

1	+12 V
2	Input ATT control 1 (open collector)	Output
3	Input ATT control 2 (open collector)	Output
4	Input ATT control 3 (open collector)	Output
5	GND

J25 Input attenuator control

1	Forwarding power 0-10 V	Input
2	Reflected power 0-10 V	Input
3	GND

J26 LPF-fault sensor

1	Shutdown active LOW	input
2	Input over power detected active LOW	input
3	Fault reset active LOW	output
4	GND

J27 Input over power protection

1	BAND signal 0-10 V	Input (ICOM band voltages)
2	GND

J28 ICOM band selector

1	RXD	Input
2	GND
3	ESP_PD (power down)	Output
4	NC
5	NC
6	NC
7	+3V3	Output
8	TXD	Output

J29 ESP32 Wifi module

J19	+3V3 to Arduino	No Connect
J20	+5 V to arduino	No connect
J21	+ 12 V Vcc to Arduino	Closed (feed 12 V to Arduino)

Jumpers (set arduino voltages)

Calibration

Trimmer	Adjustment	Cause
R9	Over Power	Set point to shutdown amplifier
R10	Ids A Calibration	Display bar level setting
R19	Ids B Calibration	Display bar level setting
R23	Hi SWR Calibration	Set point to shutdown amplifier
R29	Ids C Calibration	Display bar level setting
R30	Ids D Calibration	Display bar level setting
R31	Vds measurement calibration	Display bar level setting
R32	Vds Upper limit calibration	Set point to shutdown amplifier
R75	Max temperature A-sensor	Set point to shutdown amplifier
R76	Max temperature B-sensor	Set point to shutdown amplifier
R113	LPF Fault SWR detection	Set point to shutdown amplifier