Mobile Expertise Ltd D350V2 Manual De Usuario

8

9

3

PTT

 In

(Tx Key)

Signal, which keys the  transmitter

, when operating as 

a dumb radio. Note: If the option module is  installed, RS232 levels must  be selected on CON407. See  Module manual.

TTL

 level

0V = 

Tx

open cct = Rx

RS232 level (option) +12V = 

Tx

-12V = Rx

I/P

4

Ground

Ground connection to chassis  of the radio.

0V (Chassis)

5

Program Data Out/ Serial Data Output

Programming data output /  Serial data output.

TTL

 level

(programming cable  has RS232 converter)

O/P

6

Busy (CD)

Logic level output to indicate  presence of a carrier

. 

Note: If the option modem is  installed, RS232 levels must  be selected on CON407. See  Module manual.

TTL

 level

0V = carrier 5V = no carrier RS232 level (option) +12V = carrier -12V = no carrier

O/P

1

Program

Data modulation IN. 

(used with an external 

modem)

AC coupled signal directly 

injected through data low pass 

fi lter without pre-emphasis. 

Input signal

1KHz audio at 60% 

peak dev

. input level =

100 to 120mV

rms

I/P

1 

Program option

POCSAG input

DC coupled direct signal 

designed to work with 

TTL

 

level signals only

TTL

 Levels

I/P

1 

Program Opt & 

h/w changes

AC coupled FM direct 

modulation

AC coupled direct FM signal, 

without 

fi ltering

350mV @ 60% 

adjustable

I/P

1

h/w changes

DC data modulation IN

DC coupled direct FM signal, 

without 

fi ltering

1.9V dc of

fset 450-

550mV @ 60%

I/P

2

Data OUT

(RX disc)

Discriminator Audio, 

unprocessed AF 

signal

1KHz audio at 60% 

peak dev

. produces

200 to 300mV

rms

O/P