0309
TTPM2 Technical Specification
9
1.2.2 Communications
cable
Pin Function
2
RXD (Receive data)
3
TXD (Transmit data)
4
DTR (Data terminal ready)
5 Ground
7
RTS (Request to send)
8
CTS (Clear to send)
Figure 6. RS232 serial interface connector pin assignment
A serial communications cable is available from Swecoin. See ordering information on
page 32. The cable is 1.5 m long with 9-pole D-sub connectors at both ends.
9-pole to 25-pole D-sub adapters are commercially available.