AF128

AES/EBU FU I/F

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AES/EBU cough interface
Dual RTB
It is connectable in 12 cough
It is with cough ON display
16 – 24bit data support

AF128 is cough interface of the AES/EBU digital audio input and output.
It can connect up to 12 cough, and control of cough ON/OFF and the RTB (return talkback) ON/OFF is possible.

“Cough control”
While contact of the cough control input of AF128 or a tarry is input, the audio data of the AES/EBU signal are output, and cough outputs the audio data of the AES/EBU signal as zero in the state of OFF.
Additionally, it can confirm the state of cough ON by LED lighting of the front panel.

“RTB (return talkback)”
While contact or a tarry is input into RTB control input, an AES/EBU signal is D/A, and it is output in analog by the RTB output.
The level of then is +4dBu (20dBFS).
The RTB can choose 2 output every cough.

“Channel status”
AF128 handles only audio data, and a channel status, validity, users bit and the emphasis just output it without making by internal processing.

“Others”
There is not the external synchronization input, but works as a slave of the input signal.
Additionally, please refer about the manufacturing with different specifications.

■ Specifications
•AES/EBU INPUTS CONNECTORS: XLR3-F x6
•AES/EBU INPUT IMPEDANCE: 110Ω
•AES/EBU OUTPUTS CONNECTORS: XLR3-M x6
•AES/EBU OUTPUT IMPEDANCE: 110Ω
•AES/EBU Fs: 44.1kHz, 48kHz
•AES/EBU WORD LENGTH: 16-24bit
•EXTERNAL SYNC: NONE
•CS,V,U BIT: INPUT THRU
•RTB OUTPUTS CONNECTOR: XLR3-M x2
•RTB OUTPUT: BALANCED 50Ω, REF=+4dBu, MAX=+24dBu
•RTB OUTPUT THD: < 0.1% at 1kHz, REF. LEVEL
•RTB FREQUENCY RESPONSE: 20~20kHz ±6dB
•CONTROL CONNECTOR: 25WAY D-CONNECTOR FEMALE(#4-40)
•MAINS: 100VAC 50/60Hz, MAX 15W
•DIMENSIONS: 482Wx44Hx303D, 5kg

   AF128 “COUGH/RTB 1-6″ (D25-F #4-40)
 1 POWER SUPPLY +5V          14 POWER SUPPLY +5V
 2 SWITCHES COM +5V to +24V  15 SWITCHES COM +5V to +24V
 3 COUGH SWITCH 1            16 COUGH SWITCH 2
 4 COUGH SWITCH 3            17 COUGH SWITCH 4
 5 COUGH SWITCH 5            18 COUGH SWITCH 6
 6 RTB SWITCH 1-1            19 RTB SWITCH 1-2
 7 RTB SWITCH 2-1            20 RTB SWITCH 2-2
 8 RTB SWITCH 3-1            21 RTB SWITCH 3-2
 9 RTB SWITCH 4-1            22 RTB SWITCH 4-2
10 RTB SWITCH 5-1            23 RTB SWITCH 5-2
11 RTB SWITCH 6-1            24 RTB SWITCH 6-2
12 GND                       25 GND
13

[ caution ]
These inputs are optcoupler with constant current.
If you can’t supply power for optcoupler then link pin .
1-2 and 3-4. On this mode, switches common are pin 23 and 24.

   AF128 "COUGH/RTB 9-12" (D25-F #4-40)
 1 POWER SUPPLY +5V          14 POWER SUPPLY +5V
 2 SWITCHES COM +5V to +24V  15 SWITCHES COM +5V to +24V
 3 COUGH SWITCH 7            16 COUGH SWITCH 8 
 4 COUGH SWITCH 9            17 COUGH SWITCH 10
 5 COUGH SWITCH 11           18 COUGH SWITCH 12
 6 RTB SWITCH 7-1            19 RTB SWITCH 7-2 
 7 RTB SWITCH 8-1            20 RTB SWITCH 8-2 
 8 RTB SWITCH 9-1            21 RTB SWITCH 9-2 
 9 RTB SWITCH 10-1           22 RTB SWITCH 10-2
10 RTB SWITCH 11-1           23 RTB SWITCH 11-2
11 RTB SWITCH 12-1           24 RTB SWITCH 12-2
12 GND                       25 GND
13

[ caution ]
These inputs are optcoupler with constant current.
If you can't supply power for optcoupler then link pin .
1-2 and 3-4. On this mode, switches common are pin 23 and 24.

• Order Information

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