
4000 Digital Series II Issue 1.4 Panel User Guide
STA0380 Page vi
4.8.2 Crosspoint Level Control ..................................................................................................91
4.8.3 Shift Pushbutton ............................................................................................................... 92
4.8.4 Microphone Mute Pushbutton ........................................................................................... 92
4.8.5 Loudspeaker ..................................................................................................................... 92
4.8.6 Headset Select Pushbutton ..............................................................................................92
4.8.7 Soft Pushbutton ................................................................................................................ 93
4.8.8 Auxiliary Volume Control ..................................................................................................93
4.8.9 Main Volume Control ........................................................................................................93
4.8.10 Reply Key ....................................................................................................................... 94
4.8.11 Direct Access Key (DAK) ................................................................................................94
4.8.11.1 Key Layout and Cross-point Level Indicator ........................................................... 95
4.8.11.2 Key Action ..............................................................................................................96
4.9 PD4222R LCD Key Panel and Rotary Encoder (2RU) ...............................................98
4.9.1 Microphone Socket ........................................................................................................... 98
4.9.2 Crosspoint Level Control ..................................................................................................98
4.9.3 Pot Switch Operation ........................................................................................................ 99
4.9.4 Shift Pushbutton .............................................................................................................100
4.9.5 Microphone Mute Pushbutton ......................................................................................... 100
4.9.6 Loudspeaker ...................................................................................................................100
4.9.7 Headset Select Pushbutton ............................................................................................ 100
4.9.8 Soft Pushbutton .............................................................................................................. 100
4.9.9 Auxiliary Volume Control ................................................................................................100
4.9.10 Main Volume Control .................................................................................................... 101
4.9.11 Reply Key ..................................................................................................................... 102
4.9.12 Direct Access Key (DAK) .............................................................................................. 102
4.9.12.1 Key Layout and Cross-point Level Indicator ......................................................... 103
4.9.12.2 Key Action and Call Signalling .............................................................................. 104
4.9.13 Headset Socket ............................................................................................................ 105
4.10 PD4222 LCD Key Panel and Rotary Encoder (2RU) .............................................106
4.10.1 Microphone Socket .......................................................................................................106
4.10.2 Crosspoint Level Control .............................................................................................. 106
4.10.3 Pot Switch Operation ....................................................................................................107
4.10.4 Shift Pushbutton ........................................................................................................... 108
4.10.5 Microphone Mute Pushbutton ....................................................................................... 108
4.10.6 Loudspeaker .................................................................................................................108
4.10.7 Headset Select Pushbutton .......................................................................................... 108
4.10.8 Soft Pushbutton ............................................................................................................108
4.10.9 Auxiliary Volume Control .............................................................................................. 108
4.10.10 Main Volume Control .................................................................................................. 109
4.10.11 Reply Key ................................................................................................................... 110
4.10.12 Direct Access Key (DAK) ............................................................................................ 110
4.10.12.1 Key Layout and Cross-point Level Indicator .......................................................111
4.10.12.2 Key Action and Call Signalling ............................................................................ 112
4.10.13 Headset Socket ..........................................................................................................113
4.11 PD4222SR Supervisor Key Pane (2RU)l ...............................................................114
4.11.1 Introduction ................................................................................................................... 114
4.11.2 Standard Intercom Mode .............................................................................................. 115
4.11.3 Supervisor Mode Selection ........................................................................................... 115
4.11.3.1 Inhibiting Supervisor Mode ...................................................................................115
4.11.3.2 Fast Selection of Target Panel ............................................................................. 115
4.11.3.3 SOFT Mode Selection of Target Panel ................................................................. 116
4.11.3.4 Initiation of a Supervisor Panel ¨Æ Target Panel Session .................................... 116
4.11.3.5 Supervisor Mode Indication .................................................................................. 116
4.11.3.6 Exit Supervisor Mode ............................................................................................ 116
4.11.4 Supervisor Facilities ...................................................................................................... 117
4.11.4.1 Key Presses ..........................................................................................................117
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