Philips SOPHO SuperVisor 25 Engineer's Manual page 2

4.4.4. Error Messages .............................................................................................43
5. TESTING ........................................................................................................ 44
5.1. STARTUP ..................................................................................................................44
5.2. SHOW VERSION NUMBER .....................................................................................45
5.3. SHOW TRANSMISSION PARAMETERS ..................................................................45
5.4. KEYBOARD TEST ....................................................................................................45
5.5. DISPLAY TEST .........................................................................................................46
5.6. BUZZER TEST .........................................................................................................46
6. INTERFACES ................................................................................................. 47
6.1. GENERAL .................................................................................................................47
6.2. HANDSET OR HEADSET ........................................................................................48
6.2.1. Connector ....................................................................................................48
6.2.2. Toggle mode ................................................................................................49
6.3. S0 BUS CONNECTOR ............................................................................................49
6.4. ANALOGUE OPERATOR INTERFACE CONNECTOR (Model 25 Only) .............50
6.5. AUDIO INTERFACE ................................................................................................51
6.6. V.24 INTERFACE + AUXILIARY INTERFACE .......................................................51
6.6.1. General .........................................................................................................51
6.6.2. V.24 Interface ...............................................................................................53
6.6.3. Control Signals .............................................................................................55
6.6.4. Buzzer Contact ............................................................................................56
6.7. AM KEY SWITCH .....................................................................................................57
6.8. LOUDSPEAKER ........................................................................................................57
7. TECHNICAL DATA ....................................................................................... 58
A . DIAGRAMS ....................................................................................................60
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