Appendix C Pin Assignments
Some applications require knowledge of the pin assignments for the instrument port.
In this chapter, the pin assignments and socket for the RS232 port of the Zoom70/90 instrument
are explained.
a RS232
Pin Signal Name Function Direction
1 PWR Nominal 12 V ⎓, Range 11.5 V-13.5 V, 1.4 A max In
2 - Not used -
3 GND Single ground -
4 RxD RS232, receive data In
5 TxD RS232, transmit data Out
Description
Ports at the Zoom70/90
instrument
Pin assignments for
RS232 port
Pin Assignments 71