WorldPhone Liberator – Chapter 5. Appendices
C-17
Pin assignments
Signal source DTE means the signal goes from the PC to the WorldPhone.
Signal source DCE means the signal goes from the WorldPhone to the PC.
Appendix C – DTE interface
DTE interface
Pin Mne-
Circuit DIN
CCITT Signal
Description
number monic
circuit source
1
CD
109
DCE
Carrier detect
2
RXD
BB
D1
104
DTE
Received Data
3
TXD
BA
D2
103
DCE
Transmitted Data
4
DTR
108
DTE
Data terminal ready
5
GND
102
Signal ground
6
DSR
107
DCE
Data set ready
7
RTS
CA
S2
105
DTE
Request To Send
8
CTS
CB
M2
106
DCE
Clear To Send
9
RI
125
DCE
Ring indicator
DTE
DCE
5 4 3 2 1
6 7 8 9
WorldPhone
Voyager
WorldPhone
Marine
DTE interface