User manual
TANDBERG 1500 MXP 
202 
5.1.4 Data port 
The data port(s) are implemented as Data Communications Equipment (DCE). The connector 
used is female 9-pin D-subs. 
Signal name  Direction  Pin 
number 
Carrier detect, CD  From 
DCE 
1 
Receive data, 
RXD 
From 
DCE 
2 
Transmit data, 
TXD 
To DCE  3 
Data terminal 
ready, DTR 
From 
DCE 
4 
Signal ground, 
GND 
  5 
Data set ready, 
DSR 
From 
DCE 
6 
Ready to send, 
RTS 
To DCE  7 
Clear to send, 
CTS 
From 
DCE 
8 
Ring indicator, RI  From 
DCE 
9 










