Connecting The Radio; Auxiliary Audio Output; Transmit Audio Monitor Output; Install Jumper Wires - Tigertronics SignaLink USB Installation & Operation Manual

- CONNECTING THE RADIO -

CAUTION Before connecting the SignaLink to your
radio, read this entire section thoroughly.
SignaLink and your radio can be damaged by improper
installation. If you have already attached the SignaLink
to your computer, then you will need to unplug the USB
cable BEFORE installing the jumper wires.
The SignaLink USB attaches to the radio through an 8-pin
RJ-45 connector located on the rear of the unit. A radio
cable with the appropriate connector for your radio was
supplied with the SignaLink USB for this purpose. One end
of this cable plugs into the SignaLink s
connector, and the other end plugs into the radio s Mic,
Data, or Accessory Port connector. This cable brings all of
the required radio lines into the SignaLink USB, so that
each signal can be connected to the appropriate matching
line inside the SignaLink.
The SignaLink USB uses the radio s Ground, PTT, Speaker
and Mic lines. Because the location of these signals on the
radio connector varies from radio to radio, we have
provided a Programming Socket inside the SignaLink
(see JP-1 in Figure-4). The Programming Socket provides a
convenient way to route the various signals to the correct
pin on the radio connector.
press-in jumper wires so that no soldering is required.
Jumper settings for most common radios are provided on
the SignaLink CD and on our web site. Some of our radio
cables also include the jumper settings with the cable. If
jumper settings were supplied with your radio cable, then
you can skip to the Install Jumper Wires section below,
and install the jumpers as shown on that document. If you
did not receive printed jumper settings with your cable, then
please check the Jumper Settings section of the SignaLink
CD, or our web site. If you find the settings for your radio
listed there (please be certain that you are looking at the
jumper settings for the correct radio model and cable!),
then skip to the Install Jumper Wires section below and
install the jumpers as shown. If we do not have the jumper
settings for your radio available, then you will need to
follow the Detailed Jumper Installation Procedure near
the end of this manual, or contact Technical Support for
assistance.

Install Jumper Wires

NOTE: The SignaLink USB NEVER needs external power,
so socket JP-1 does NOT have a PWR pin like earlier
SignaLink models. You can disregard the PWR jumper
when installing the jumpers for the SignaLink USB. All
other jumpers should be installed as shown.
We have provided pre-stripped jumper wires with the
SignaLink USB. These wires are 24ga AWG and fit
perfectly in the SignaLink s jumper socket. If you use any
other wire to install the jumpers, then this wire MUST be
24ga AWG, or you will damage the SignaLink s socket.
Both the
RADIO
This is accomplished with
Installation of the jumper wires can be done without any
tools, but you may find it easier to do with needle-nosed
pliers. If you do use needle-nosed pliers, be sure to grip the
wire close to the end that you are installing in the socket.
When pushing the wires into the socket, be very careful not
to bend them back and forth or they might break. The wires
are quite durable and can be re-installed many times if you
are careful, but if you break a wire off in the socket, there is
no way to remove it. You will have to have a new socket
installed! This should not be an issue if you are just a little
bit careful.
Once you have all of the jumpers installed, please take a few
minutes to look them over. You should have the SPKR
jumper installed only if you have Speaker/RX audio
available on the radio connector that you are using. If this
signal isn t available (this is a possibility with Mic jacks),
then this jumper should not be installed. Instead, you will
need to connect the provided mono cable from the External
Speaker or Headphone jack of your radio, to the SPKR jack
on the rear panel of the SignaLink USB. This will pass the
radio s Speaker Audio signal into the SignaLink. Once you
are confident that the jumpers are installed correctly, you
can put the SignaLink USB circuit board back into the case
(see Opening The SignaLink Case at the beginning of this
manual).

- AUXILIARY AUDIO OUTPUT -

The SignaLink USB has an Auxiliary Audio jack ( Aux )
on the rear panel that can be used to attach an external
radio speaker, or headphones for monitoring receiver audio.
This especially useful if your radio s built-in speaker has
been cut-off by a speaker/headphone connection to the
SignaLink. Note that the Aux jack can only be used with a
speaker/headphones if the SignaLink USB is connected to
high-level Speaker audio.
connected to your radio s Data or Accessory Port, then you
will not be able to use this output for monitoring because
virtually all of these ports have low-level outputs.
NOTE: Attaching or removing an external speaker while
you are using the SignaLink USB will change the loading
on the radio s speaker circuit. This will probably cause a
change in the level of audio going to the SignaLink USB,
and may require you to re-adjust the SignaLink s RX level
control or the radio s Volume control to compensate.

- TRANSMIT AUDIO MONITOR OUTPUT -

The SignaLink USB has a Transmit Audio Monitor jack
( Mon ) on the rear panel that can be used with amplified
speakers or high-impedance headphones to monitor the
SignaLink s Transmit Audio signal. The output level of
this jack varies with the computer s software volume
controls, and provides a maximum level of approximately
400mv p-p into 1Kohm. This is sufficient to drive most
2
If the SignaLink USB is