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Installation 2–

Port A

Pin Description

1 PA # 5 - # 8 current 1V = 2A of current

2 PA # 5 - # 7 current 1V = 2A of current

3 System Lock-Out Reset - Momentary to Ground to reset power control to normal

4 Remote RF Power RAISE - Momentary to Gnd to raise power 2

00 watts/second

5 Cabinet Temperature - 0.01 Volts/degrees Celsius reading of internal cabinet temp.

6 Ground

7 Remote High Voltage ON/OFF - Hold to ground to turn ON High Voltage

8 Fault Summary - TTL Logic HIGH (+5 VDC) when any fault light is ON

9 Ground

10 PA # 5 - ALC

11 PA # 5 - PA Temperature (Celcius) 1V = 20 degrees C

12 PA # 5 - SWR

13 PA # 5 - RF Output power 1V = 1000 Watts RF power

14 PA # 5 - In Ref.

15 Remote RF Power LOWER - Momentary to Gnd to lower power 20 watts/second

16 PA # 5 - # 6 current 1V = 2A of current

17 PA # 5 - # 5 current 1V = 2A of current

18 Remote RF Power, Forward - 1 VDC = 1000 Watts of Forward power

19 PA # 5 - # 4 current 1V = 2A of current

20 PA # 5 - # 3 current 1V = 2A of current

21 Remote RF Power, Reverse - 1 VDC = 1000 Watts of Reverse power

22 PA # 5 - # 2 current 1V = 2A of current

23 PA # 5 - # 1 current 1V = 2A of current

24 PA # 5 - PA Total Current 1V = 20 Amps

25 PA # 5 - PA Volts 1V = 10 Volts

The I/O connections on the back of the controller consist of 3 main ports; Port A 

(DB-25 Female), Port B (DB-37 Female), and Port C (DB-37).

Port A has the metering and control of the System as well as the metering for PA5 

(bottom PA). Port B and Port C have the amplifier metering for PA1 (top) through 

PA4 (next to bottom). 

I/O port A is described in illustration 2-15, I/O port B is described in illustration 

2-16, and I/O port C is described in illustration 2-17.

Illustration 2-15 Remote I/O Port A Female DB-25

2.5 Remote I/O Connections

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 37 38

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Crown FM250 Manual do Utilizador Página 13