TT-3020B Installation Manual - Polaris-as.dk

9 Pin Connector
Transceiver Computer
2 2
3 3
4 4
5 5
6 6
8 8
9 9
25 Pin Connector
Transceiver Computer
2 3
3 2
4 20
5 7
6 6
8 5
9 22
Figure 5: TT-3020B connection to computer
Thrane & Thrane
TT-3020B
Capsat Transceiver
Installation Manual
Signal Name
30MAY95 Page 19
RxD
TxD
DTR
Ground
If your computer is configured as DCE you will have to cross the wires running from pin
2 and pin 3 of your TT-3020B to the computer. Pin 5 from the TT-3020B will still connect
as shown.
2.5.2.3.4 Flow control
DSR
The TT-3020B optionally uses either hardware or software flow control.
2.5.2.3.4.1 Hardware flow control
Hardware flow control is accomplished by using the DTR and CTS signals.
2.5.2.3.4.2 Software flow control
Software flow control is accomplished by connecting the DTR and CTS, allowing both
TT-3020B and the peripheral to control data flow by means XON XOFF.
ENQ/ACK cannot be used.
2.5.3 T-Bus Connector
The T-Bus port X5 on the back panel of the TT-3020B Transceiver can be used for either
� Thrane & Thrane T-Bus communication
when connecting to the TT-3042B Remote Alarm or other T-Bus devices
� The International NMEA 0183 communication standard input and output when
connecting to a commercial available navigator device or using the built-in GPS is
installed and in navigation mode.
The factory default is T-Bus communication.
CTS
RI