Extron electronics RGB 326 User Manual page 12

im Vertrieb von
Installation and Operation, cont'd
2. Determine what colors of each conductor type will be used
for which signal, or use the examples provided in this manual.
Strip 7" to 8" (18 cm to 20 cm) of the outer jacket from the
3.
end of the cable.
4. Use a pointed tool to separate the braided wire shield sur-
rounding the cable. Pull the ends of the braid away from the
cable, twist the braid wires together, and clamp them to the
electrical box (if used). See "Connecting shields", page 2-10.
5. Unroll and cut off the foil shield.
6. Place a 1.5" to 2" (3.8 cm to 5 cm) piece of heat shrink on
each mini coaxial cable, but do not heat it yet.
7. Install and crimp a male BNC connector onto each of five
mini coaxial cables. The white mini coaxial cable is not
used by the buffer; it can be insulated and set aside or
trimmed back 7" to 8".
8. Slide the heat shrink over the ferrule of each attached
BNC connector, and heat it to fasten the
heat shrink in place.
9. Place a 6" (15 cm) piece of heat shrink on each set of
shielded twisted pair wires (one on white/black, one on
red/black, one on orange/black), but do not apply heat yet.
10. Separate the wire braid from the white/black and red/black
shielded twisted pair conductors for about 1" (2.5 cm)
from the ends. For each twisted pair set, twist the strands
of the wire braid together.
11. Strip 1/4" (13 mm) of insulation from the ends of the
white/black and red/black twisted pair wires. Twist each
conductor's stranded wires.
12. The left half of the 10-pole connector is for audio output to
the RGB 320. See the diagrams on pages 2-14 and 2-15,
which show wiring for balanced audio output. See the
illustration below for a comparison of wiring for
unbalanced (high impedance) or balanced (high
impedance or 600 ohms) stereo audio output.
Unbalanced output
Tip
See Warning
Sleeve (s)
Tip
See Warning
Connect the sleeve to ground. Connecting the
sleeve to a negative (-) terminal will damage the
audio output circuits.
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RGB 324/326/340 • Installation and Operation
2-12
CAMBOARD Electronics
Balanced output
Tip
Ring
Sleeve (s)
Tip
Ring
Tel. 07131 911201
Fax 07131 911203
Insert the tips of the white/black twisted pair wires into
the captive screw connector for left audio. Insert the tips
of the red/black twisted pair wires into the captive screw
connector for right audio. For balanced audio output,
white = L+, black = L-; red = R+, black = R-.
13. Twist together the wire braids from both (white/black and
red/black) twisted pairs.
14. Insert the twisted braid into the ground connection on the
audio part of the captive screw connector. See the illustra-
tions in step 12 and the wiring diagram on page 2-14.
15. Separate about 1" (2.5 cm) of the wire braid from the ends
of the orange/black shielded twisted pair conductors, and
cut the braid off.
16. Strip 1/4" (13 mm) of insulation from the ends of the
orange/black twisted pair wires. Twist each conductor's
stranded wires.
17. Insert the black wire into the slot for pin A and the orange
wire into the slot for pin B of the captive screw connector.
18. Slide the heat shrink on the white/black, red/black, and
orange/black twisted pairs toward the connector so no wire
braid is exposed near the connector. Apply heat to fasten the
heat shrink onto the wires to insulate the braided shields.
19. Strip 1/4" (13 mm) of insulation from the ends of the
brown, violet, and grey single conductor (20 AWG) wires.
Insert the tip of the brown wire into the slot for pin C on
20.
the captive screw connector, insert the violet wire into D,
and the grey wire into E. See page 2-14.
21. Repeat steps 3 through 20 to attach a 10-pole captive screw
connector, BNCs, and heat shrink to the other end of the
cable. Make sure that connections are the same on both ends.
22. Plug the captive screw connector on one end of the cable
into the buffer's receptacle, and connect the adjacent BNCs
to the output BNCs on the buffer's rear panel.
23. Attach the BNCs and captive screw connector on the other
end of the cable to the appropriate input connectors on the
RGB 320's rear panel.
24. Apply power to the RGB 320.
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RGB 324/326/340 • Installation and Operation 2-13