4000 Digital Series II Issue 2.1 Technical Manual
STA0381 Page 19
2.2.8 PD4224R/PD4224 - Intelligent Control Panel (2RU)
2.2.8.1 PD4224R (revised) Front View
Figure 14 - PD4224R (revised) Front View
1 Microphone Socket 11 Main Volume Control and Associated LED
2 Direct Access Key (DAK) 12 Reply Key
3 Indicator LED 13 Call Reject Pushbutton and Associated
LED
4 Shift Pushbutton and Associated LED 14 Soft Pushbutton and Associated LED
5 Info Pushbuttonand Associated LED 15 Vacuum Fluorescent Display (VFD)
6 Loudspeaker Aperture 16 Headset Socket
7 Crosspoint Level Control 17 Headset Select Pushbutton and Associ-
ated LED
8 Rack Mounting Screws (cover removed) 18 Cover Over Rack Mounting Points
9 Auxiliary Volume Control and Associated
LED
19 Microphone Mute and Associated LED
10 Loudspeaker Cut Pushbutton and Associ-
ated LED