RS‑232
A DB9 pin and socket cable is used to connect the NL200/201 RS-232 port to the data logger RS‑232 port. A Campbell Scientific SC12 cable can also be used. A DB9 socket null modem cable is used to connect the NL200/201 RS-232 port to a computer RS-232 port. The RS-232 cable should be kept short when using high baud rates. Pin configurations for the RS-232 port of a data logger and peripheral device are shown in the following Table.
|
Pin |
Data Logger (DCE, DB9 socket) |
Peripheral (DTE, DB9 pin) |
|---|---|---|
|
1 |
DCD |
DCD |
|
2 |
TXD |
RXD |
|
3 |
RXD |
TXD |
|
4 |
DTR |
DTR |
|
5 |
SIGNAL GND |
SIGNAL GND |
|
6 |
DSR |
DSR |
|
7 |
CTS |
RTS |
|
8 |
RTS |
CTS |
|
9 |
RING |
RING |