Sierra 200 Manual Do Utilizador

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  8 
Configuring the Radio Control Board 
 
The radio control board provides the audio interface, level set, audio mixing, local 
telemetry (key up and CW ID) generation, serial radio control interface, extra user 
programmable open collector outputs.  One RCB is required for every radio or VOIP 
computer in the system.  Each RCB is configured to have one of several "personalities" 
including a repeater, RF link, remotely controlled base station, or VOIP computer. 
 
 Basic Checklist 
Make sure all RCB board jumpers are properly set. 
 
JU1 - RX Port Select 
You MUST have one (and only one) jumper installed in this block.  It must correspond 
to the port you want to assign this board from 0 to 7. 
No two boards can have the same rx port select value. 
 
JU2 - CPU Address 
You MUST install jumpers in the address header to match the port assignment.  This 
should be the same vale as the jumper installed in the Rx Port Select information above. 
 
 
 
Jumpers 
 Port  8    
 4     
2    
 1 
 
0 
out 
 out    out 
out 
 
1 
out  
out    out 
IN 
 
2 
out  
out  
IN 
out 
 
3 
out  
out  
IN 
IN 
 
4  out IN  out out 
 
5  out IN  out IN 
 
6  out IN IN out 
 
7  out IN IN IN 
 
JU 3 - DTMF Filter Bypass 
OUT:  Default.  Takes the rx audio through a bandpass filter before it goes to the 
DTMF decoder. 
IN: 
Bypass the DTMF filter and dirve the audio directly into the DTMF decoder. 
 
JU4 - Local (NO) 
OUT: Default 
IN: 
Install the jumper to enable the open collector output of Q2 to drive the "local 
COR" input on the local CPU.