DTP HDMI 230 Tx/Rx Transmitter and Receiver • Installation and Operation 6
h Audio output connector — This 5-pole, 3.5 mm captive screw connector outputs
the transmitted, unamplified, line level analog audio. Connect an audio device, such as
an audio amplifier or powered speakers.
See figure 4 to properly wire a captive screw output connector. Use the supplied
tie-wrap to strap the audio cable to the extended tail of the connector.
Unbalanced Stereo Output Balanced Stereo Output
Do not tin the wires!
Tip
NO GROUND HERE
NO GROUND HERE
Tip
LR
Sleeves
Tip
Ring
Tip
Ring
LR
Figure 4. Captive Screw Connector Wiring for Stereo Audio Output
ATTENTION: For unbalanced audio, connect the sleeves to the ground contact.
DO NOT connect the sleeves to the negative (-) contacts.
NOTES:
• If you have removed the ground jumpers (see Disconnecting the Ground on
page 12) because of ground potential differences, the DTP HDMI 230 cannot
extend analog audio. No analog audio is output.
• The length of exposed wires is critical. The ideal length is 3/16 inch (5 mm).
• If the stripped section of wire is longer than 3/16 inch, the exposed wires
may touch, causing a short circuit.
• If the stripped section of wire is shorter than 3/16 inch, wires can be easily
pulled out even if tightly fastened by the captive screws.
• Do not tin the power supply leads before installing them in the connector.
Tinned wires are not as secure in the connector and could be pulled out.
i RS-232 and IR connector — Connect a serial RS-232 signal, a modulated IR signal,
or both to this 3.5 mm, 5-pole captive screw connector for bidirectional RS-232 and
IR communication. See RS-232 and IR connector wiring on page 10 to wire the
connector.
j Power input connector — Plug the included external 12 VDC power supply into
either this 2-pole connector or the power input connector on the transmitter (see
item e on page 5). See Power supply wiring on page 9 to wire the connector.
NOTES:
• One power supply is included with the transmitter and normally can power
both units.
• If you have removed the ground jumpers (see Disconnecting the Ground
on page 12) because of ground potential differences, one DTP HDMI 230
unit cannot remotely power the other unit. Each unit requires a local power
supply.
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