|
CNTL1
|
CNTL2
|
PTT
|
RESULT |
|
MODE |
|
0 |
0 |
0 = FLOAT |
Receive
RCV Audio @ VOICE OUT
VOICE IN Muted |
|
Normal receive with or without DVS. Audio
provided for other modes or recording received signal. |
|
0 |
0 |
1 = GND |
Transmit
Mic Audio Transmitted
VOICE OUT Muted
VOICE IN Muted Rig Speaker
Muted |
|
Normal transmit with or without DVS. |
|
0 |
1 |
0 = FLOAT |
Receive
VOICE IN @ Rig Speaker
VOICE OUT Muted |
|
Monitor/review messages using rig
speaker/headphones. |
|
0 |
1 |
1 = GND |
Transmit
VOICE IN Transmitted
VOICE OUT Muted
Rig Speaker Muted |
|
Transmit recorded messages. No monitoring. |
|
1 |
0 |
0 = FLOAT |
Receive
Mic Audio @ VOICE OUT
VOICE IN Muted
Rig Speaker Muted |
|
Record message. |
|
1 |
0 |
1 = GND |
Transmit
Mic Audio Transmitted Mic Audio @ VOICE OUT
VOICE IN Muted
Rig Speaker Muted |
|
Transmit and record at the same time. |
|
1 |
1 |
0 = FLOAT |
Receive
VOICE IN @ Rig Speaker
VOICE OUT Muted |
|
Monitor/review messages using rig
speaker/headphones. |
|
1 |
1 |
1 = GND |
Transmit
VOICE IN Transmitted
VOICE IN @ Rig Speaker
VOICE OUT Muted |
|
Transmit recorded messages and monitor using rig
speaker/headphones. |
Note that for
CONTROL inputs, the logic state “1” is the presence of +9 volts and the logic
state “0” is a floating input.
VOICE IN is audio
input at DVS2 pin 1. Most interface circuits connect this to the sound
card output through a transformer.
VOICE OUT is audio
output at DVS2 pin 2. Most interface circuits connect this to the sound
card input through a transformer.
