Sierra 200 owner manual Configuring the Radio Control Board

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.

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