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Analog audio connectors
See figure 5 to wire a connector for the appropriate output type. Connectors are included
with the decoder, but you must supply the audio cable. Use the supplied tie-wrap to strap
the cable to the extended tail of the connector.
No Ground Here
Tip
Sleeves
Tip
No Ground Here
Do not tin the wires!
Unbalanced Stereo Output
Figure 5.
Captive Screw Connector Wiring for Audio Outputs
ATTENTION:
•
For unbalanced audio, connect the sleeves to the ground contact. DO NOT
connect the sleeves to the negative (-) contacts.
•
Pour l'audio asymétrique, connectez les manchons au contact au sol. NE PAS
connecter les manchons aux contacts négatifs (–).
NOTES:
•
The length of exposed wires is important. 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.
A balanced stereo audio connector consists of a tip, ring, and
sleeve. An unbalanced mono audio connector consists of a tip
and sleeve. When you are making connections for the units
from existing audio cables, see the drawing at right to identify
the tip, ring, and sleeve parts of the connector. The ring, tip,
and sleeve wires are also shown on the captive screw audio
connector diagram, figure 5.
Control connector wiring
Figure 6 shows how to wire the Control (RS-232 and IR) connector.
IR Device
Rx
Tx
RS-232 Device
Figure 6.
Control Connector Wiring
NOTES:
•
The IR S and G line pair and the RS-232 Tx and Rx line pair must each cross once
between this connector and the source or destination.
•
The length and preparation of exposed wires is important (see the audio connector
NOTES
above for details).
NAV SD 501 and NAV SD 101 Scaling Decoders • Installation
Tip
Ring
Sleeves
Tip
Ring
Balanced Stereo Output
Tx
Rx
Gnd
Tip (+)
Ring (-)
Sleeve ( )
3.5 mm Stereo Plug Connector
(balanced)
9
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