Remote mic interconnections
Figure 8: Remote mic interconnections
Callout Description
A 4100-1411 ES Net Digital Audio Controller Card
B 4100-1244 Remote Mic Enclosure
Note:
• Leave the 10 K, 1/2 W resistors (378-030; brown/black/orange) on the + to - terminals of unused remote microphone contacts.
• All wiring is 18 AWG (0.8321 mm
2
), twisted-shielded pair.
• Audio wiring is not to be mixed in the same jacket with other wiring, including other audio wiring.
• Supervisory current is 2.4 mA at 24 VDC (nominal).
• Maximum wire distance: 4,000 ft (1,219 m).
• Wiring must be free of all grounds.
• Wiring is supervised and power-limited.
• Terminate the shield as shown. Do not connect the shield to Earth.
page 11 579-1408 Rev. B
ES Net Digital Audio Controller Installation Instructions
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