Arrakis Systems ARC-HP Manual - Page 2

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Thank you for your purchase of the ARC-HP. The ARC-HP is designed for two purposes:
1) ADDITIONAL HEADPHONE OUTPUTS - To provide additional headphone outputs for your console.
You may use one or more units 'daisy chained' and have multiple headphone outputs.
2) LOGIC & AUDIO INTERFACE – The ARC-HP has two buttons, Talkback and Cough. These buttons,
along with other logic allow you to interface to your console.
HEADPHONE SETUP INSTRUCTIONS
STEP 1 – Connect the Main Studio console audio output (such as Program, or Monitor output) to the
audio Main input on the ARC-HP. The Main input is a balanced input that uses pins 1, 2, 3, and 6.
MAIN PORT PINOUT
1 - PGM L+
2 - PGM L-
3 - PGM R+
4 - GND
5 - TB (Control) Pulling to Ground triggers TB relay
6 - PGM R-
7 - TB Audio In +
8 - TB Audio In -
STEP 2 (OPTIONAL) – Connect the Main Studio Talkback
audio output to Pins 7 & 8 on the ARC-HP Main input.
For example, the ARC-10 series boards have a DB15
connection, and Talkback audio fed from Mic's 1 & 2 are
fed from the DB15 pin 12 (check ARC-10 manual for
current information).
This allows the Main studio to Talk to the user on the ARC-HP.
STEP 3 (OPTIONAL) - Connect the ARC-HP Main input, pin 5, to the Main Studio's console logic. When
pin 5 on the ARC-HP is pulled to ground, it will:
(A) duck the PGM audio on the ARC-HP, and
(B) play the TB Audio from the Main studio.