Link Communications RLC-CLUB, User Manual

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2-1
Version 1.73 Copyright © 1997 Link Communications Inc. 1/18/97
Chapter 2: Port Connection Commands
This chapter deals with the commands used in connection and control of the radio ports. The
areas dealt with in this chapter are:
Radio port connections
Receiver access control
COR and PL polarity control
Transmitter PTT control
"Connected Ports"
In this chapter you will often see references to ports being "connected". When two ports are
connected, they hear each other (the COR from each port will activate the PTT on the other,
and the audio from each will be transmitted out the other). All of the radio ports on the
controller can work independently, or they can be connected together in any combination. If all
of the ports are connected to each other, they whole controller works as one unit, with audio
received on any of the receivers going out all of the transmitters.
You can make a port a repeater by connecting it to itself, so it hears (repeats) its own audio.
When using a port for a link or remote base, it should not be connected to itself; when audio is
received on a remote it should not be transmitted back out the remote. Instead, the audio from
the remote should be transmitted out of a repeater, and the audio from the repeater should go
out the remote. So the repeater port should be connected to itself (to make it a repeater) and the
repeater port should be connected to the remote base port (so they can hear each other). The
remote base port should not be connected to itself. To turn the remote off, you can disconnect
it from the repeater port and they will no longer hear each other.
It is also possible to make a one-way connection, that is to have one port monitor another. If
you make the repeater port monitor the remote base port, the people listening to the repeater
would be able to hear the remote base, but the remote base would not transmit the audio
received on the repeater. In this case we could say that the remote receiver is connected to the
repeater transmitter, but that the repeater receiver is not connected to the remote transmitter.
When you make an autopatch call, the controller automatically connects the radio port that
made the call to the autopatch port. It also may connect to the patch any ports that were
connected to (or monitoring) the port that made the call, to avoid one-way conversations. It
also connects the autopatch to itself (to keep it off hook when you unkey) even though it dosn't
get it's own audio looped back (there is a special case in the code to break that audio
connection).
Turning a Repeater Off
There is more than one way to turn a repeater off, each of which has advantages and
disadvantages. For this example, we will assume that you have a repeater connected to port 1.