NEC NDA-24233 User Manual
NDA-24233 Issue 2
Page A-1
VisuaLink 128/384 Engineering Guide
Appendix A
Appendix A: Pin-out Specification
Pin-out specifications for all the VL 128/384 connectors.
SERIAL 1 PORT
Note: The signal direction shown is seen from the VisuaLink 128 (DTE).
SERIAL 2 PORT
Note: The signal direction shown is seen from the VisuaLink 128 (DTE).
Headset
MIC Connection (1 - 3)
NO
Symbol
Direction
Function
1
RS
OUT
Request to Send
2
CS
IN
Clear to Send
3
SD
OUT
Send Data
4
GND
-
Ground
5
RD
IN
Receive Data
6
-
-
7
ER
OUT
Data Terminal Ready
8
DR
IN
Data set Ready
NO
Symbol
Direction
Function
1
RS
OUT
Request to Send
2
CS
IN
Clear to Send
3
SD
OUT
Send Data
4
GND
-
Ground
5
RD
IN
Receive Data
6
+5V
OUT
7
ER
OUT
Data Terminal Ready
8
DR
IN
Data set Ready
Name
Function
TIP
Input from microphone
RING
Output to ear piece
SLEEVE
Ground
Name
Function
Polarity
TIP
Input from microphone
+
RING
Output to ear piece
-
SLEEVE
Ground
8 PIN MIN DIN FEMALE
8 PIN MIN DIN FEMALE
RING
TIP
SLEEVE
HEADSET JACK
RING
TIP
SLEEVE
MIC JACK