4000 Digital Series II Issue 2.1 Technical Manual
STA0381 Page 27
2.2.10 PD4226R/PD 4226 32-key control panel (2RU)
2.2.10.1 PD4226R Front View
Figure 21 - PD4226R Front View
1 Microphone Socket 7 Loudspeaker Cut Pushbutton
2 Indicator LED 8 Main Volume Control and Associated LED
3 Direct Access Key (DAK) 9 Reply Key
4 Designation Strips 10 Headset Socket
5 Loudspeaker Aperture 11 Headset Select Button and Associated
LED
6 Auxiliary Volume Control and LED 12 Microphone Mute and Associated LED