SC4x0 Technical manual
Page 4 of 34
SeaCom
Rev
2.00
7.2
Voice control considerations ..................................................................................... 17
8.
Electrical layout ............................................................................................................. 18
8.1
Example of a simple set up with headset ................................................................. 18
8.2
Example of a simple set up with handset ................................................................. 19
8.3
Example of set up with remote PTT for loudhailer .................................................... 19
8.4
Ground & shield connections .................................................................................... 19
9.
Mounting & programming .............................................................................................. 20
9.1
Power supply & grounding considerations ................................................................ 20
9.2
Programming the type of headset & VOX ................................................................. 20
9.3
Adjusting microphone gain ....................................................................................... 20
9.4
Relay function ........................................................................................................... 21
9.5
Dial signal type ......................................................................................................... 21
9.6
Hands free voice control ........................................................................................... 21
9.7
Bell signal and volume .............................................................................................. 21
9.8
PA volume ................................................................................................................ 21
9.9
External speaker ....................................................................................................... 22
9.10
Adjusting external dimmer input ............................................................................... 22
9.11
Local external microphone ........................................................................................ 22
10.
Parameter list ................................................................................................................ 23
10.1
Level 1 parameters ................................................................................................... 23
10.2
Level 2 parameters ................................................................................................... 23
10.3
Level 3 parameters ................................................................................................... 24
10.4
Parameter list for hidden menu ................................................................................. 25
11.
Serial monitor ................................................................................................................ 27
11.1
Function .................................................................................................................... 27
11.2
Commands ............................................................................................................... 27
11.3
Commands use full for workshop testing .................................................................. 27
11.3.1
Set Relay -command ......................................................................................... 28
11.3.2
To pass audio from microphone to speaker ...................................................... 28
11.4
Commands use full for development & testing ......................................................... 28
11.4.1
Memory monitor & manipulation ........................................................................ 28
11.4.2
Eeprom data ...................................................................................................... 28
11.4.3
Busy tone detector ............................................................................................. 28
12.
Simple faultfinding ......................................................................................................... 29
12.1
No ‘life sign’ .............................................................................................................. 29
12.2
Spontaneous reset .................................................................................................... 29
12.3
Unable to hang up in hands free mode ..................................................................... 29
12.4
Noisy or scratchy sound quality ................................................................................ 29
12.5
No direct in, no PA or no command call ................................................................... 29
12.6
Dialing problems ....................................................................................................... 29
12.7
Low or distorted sound from microphone ................................................................. 29
