Campbell NL241, Product Manual

Page: 49 / 76

Table A-2: RS-232 pinout
Pin
Data Logger (DCE, DB9 female)
function
Peripheral (DTE, DB9 male)
function
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
A.3 Link/Activity LED
The color and light pattern of the Link/Act (Activity) LED indicate the state of the device as
described in the following Table.
Table A-3: LED
State Description
Off
The device is powered off or the Wi-Fi has been disabled via the Mode button
configuration or via an
IPNetPower()
instruction from the data logger. See
Mode button (p. 19) for information on the Mode button configuration.
On solid
After power-up: scanning nearby networks and trying to join or create a Wi-Fi
network. The LED turns solid green when joining a network and solid amber when
creating a network.
Flashing
After successfully joining or creating a network, the LED will flash with network
activity. Note that the LED may only flash once every few seconds on the created
network or networks that are not very busy.
NL241 Wireless Network Link Interface 43