U407 Basic interface, telephone

Connector overview

NumberX-pin, colorDescription
X403854-pinConnector Basic interface, telephone

Pin assignments at connector X4038

PinTypeDescription / Signal typeConnection /
Measuring notes
1MGroundGround splice
   
2MNegative input signal, microphoneVoice input Microphone
   
3EPositive input signal, microphoneVoice input Microphone
   
4ETelephone mute signalVoice input Telephone connector
   
5ESignalVoice input Telephone connector
   
6ENighttime illumination signalTelephone connector
   
7E/AI-bus signal lineI-bus splice Telephone connector
   
8ETerminal RTelephone connector
   
9ETerminal 30Terminal 30 splice
   
10ESignal, terminal 58gEject box
   
11ETerminal 30Eject box
   
12ETerminal 31Eject box
   
13MGround signalEject box
   
14 Not used 
   
15MShieldShield Microphone
   
16MAudio groundEject box
   
17MTerminal 31Ground splice
   
18ETerminal 30 voltage supplyTerminal 30 splice
   
19 Not used 
   
20 Not used 
   
21 Not used 
   
22 Not used 
   
23 Not used 
   
24 Not used 
   
25 Not used 
   
26 Not used 
   
27 Not used 
   
28MShieldEject box
   
29 Not used 
   
30 Not used 
   
31 Not used 
   
32 Not used 
   
33 Not used 
   
34 Not used 
   
35 Not used 
   
36 Not used 
   
37ESignal Eject boxEject box
   
38ESignal Eject boxCompensator
   
39ESignal Eject boxEject box
   
40ESignal Eject boxEject box
   
41ESignal Eject boxEject box
   
42ESignal Eject boxEject box
   
43ESignal Eject boxEject box
   
44ESignal Eject boxEject box
   
45ESignal Eject boxEject box
   
46 Not used 
   
47 Not used 
   
48ESignal Eject boxEject box
   
49EPositive signalEject box
   
50 Not used 
   
51 Not used 
   
52ESignal Eject boxEject box
   
53MGround signalVoice input Telephone connector
   
54EPositive signalVoice input Telephone connector