AMERITRON ARI-500 Instrukcja obsługi - Strona 8

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AMERITRON ARI-500 Instrukcja obsługi
ARI-500 Automatic Band Switch for ALS-500

Interfacing to Kenwood Radios

The Computer port (CAT) is used to retrieve the frequency of the radio.
When the ARI-500 is first turned on, the "Auto Information" (AI)
command is sent to the radio. This command causes the Kenwood radio
to output the state of the radio (frequency, mode, etc) anytime the state
has changes. The ARI-500 then uses the frequency to determine the
appropriate band and then selects the correct antenna. The diagram
below shows how to connect a Kenwood radio with a DB-9 Com port to
the ARI-500. Note that pin 7 and 8 (RTS, CTS) on the Kenwood port are
connected together. This ensures that the Kenwood will send the status
information to the ARI-500. The Remote port is also found on the back
of the Kenwood which has the amp key line needed for the ARI-500.
There is one second delay from when the status of the radio changes until
it is sent out over the serial connection.
Kenwood TS-570, TS-870, TS-2000,
(*TS-480 see Addendum in rear of this manual)
Com Port
Rear View of
Kenwood Transceiver
Remote
ARI-500 (Radio Input) RJ-45 Connector Wiring
Pin 1
Ground connects to pin 1 of Radio Com port and pin 2 of Radio Remote Connector
Pin
2 Amp key connects to pin 4 of Radio Remote Port.
Pin
3 RXD
(
) connects to pin
Pin 4 (TXD) connects to pin 3 of Radio Com Port.
Pin
5
not connected.
Pin 6 not connected.
Pin 7 not connected.
Pin 8 not connected.
Pin 9 ot connected.
n
Note: Pins 7 and 8 on the Kenwood Com Port must be connected
together. This ensures the radio will send information to the ARI-500.
* The Kenwood TS-480 requires different connections. See the Addend
in the rear of this manual.
8
Instruction Manual
ARI-500
TXD
Amp Key
RXD
Rear View of
ARI-500
Gnd
12345678
Radio Input
2
of Radio
Com Port
.