16
Status output terminal
Pin
number
Signal name Explanation
Terminal
color
10
TALK LED :
OPEN/CLOSE
Talk ON: Close
Talk OFF: Open
Requesting to talk (waiting): blinks
Talk request is rejected: blinks quickly
Black
11
TALK LED :
LOW/HI
Terminal for AT8657/LED and U891RCx
Talk ON: +5 V
Talk OFF: 0 V
On/off operations are synchronized with the open/close operations for the
TALK LED pin (10)
12 FLOOR LED
Selecting the floor channel on the monitor channel
When selected: Close
When unselected: Open
13 LANGUAGE1 LED
Selecting group 1 on the monitor channel
When selected: Close
When unselected: Open
14 LANGUAGE2 LED
Selecting group 2 on the monitor channel
When selected: Close
When unselected: Open
15 LANGUAGE3 LED
Selecting group 3 on the monitor channel
When selected: Close
When unselected: Open
Operation input terminal
Pin
number
Signal name Explanation
Terminal
color
16 CHANNEL Selecting the monitor's channel
Black
17 VOL. UP
Adjusting the headphones' volume
18 VOL. DOWN
19 TALK ON
Request to talk
Yes: Close
No: Open
20 CUT/MUTE
Request to mute/cut microphone
Yes: Close
No: Open
21
TALK ON
(INVERT)
AT8657/LED dedicated terminal
Request to talk
Yes: +5 V
No: 0 V
The function of this pin is the same as that of the TALK ON pin (19)
*When there is a TALK ON or TALK ON (INVERT) request to talk, the
system handles them both as requests to talk.
Power supply output terminal
Pin
number
Signal name Explanation
Terminal
color
22 5 V Power supply for LED is 5 V
Black
23 GND Power supply GND
General purpose input terminals (GPI)
Pin
number
Signal name Explanation
Terminal
color
24 GPI0 General purpose input terminal 0
Black
25 GPI1 General purpose input terminal 1
26 GPI2 General purpose input terminal 2
27 GPI3 General purpose input terminal 3
28 GPI4 General purpose input terminal 4
29 GPI5 General purpose input terminal 5
30 GPI6 General purpose input terminal 6
31 GPI7 General purpose input terminal 7
To Next Page
Loading...
Need help?
General
