9
Connecting USB (USB Models Only)
Make sure that the USB driver is correctly installed before connecting the USB
cable to the computer. The USB port is located on the back of the CC-3000.
The USB driver will assign a communications port to the device. Note that the
port number will change if you plug the USB cable into a different port. On
Windows based computers use the Device Manager to determine which port
has been assigned to the CC-3000. It will be listed under Ports (Com &
LPT).
Drivers are supplied on the Rainwise CD-ROM included with your CC-3000
or from www.rainwise.com.
Connecting RS-232 (RS-232/485 Models Only)
A single DB-9 Female connector is located on the back of the CC-3000. The
CC-3000 is configured as a DCE device. DTR and DSR are connected but not
used by most firmware builds. The RS-232 cable supplied with the CC-3000 is
a straight through cable and is designed to connect to a DTE device such as a
computer. The RS-232 port can not be used simultaneously with the RS-485
port.
Connecting RS-485/422 (RS-232/485 Models Only)
The CC-3000R is supplied with a half duplex RS-485/422 serial port. The
default firmware build only supports RS-422. Custom firmware builds are ad-
dressable and support integration into RS-485 networks. Contact Rainwise for
further information.
Wiring connections are made using the 3 pin screw terminal on the back of the
CC-3000R. Cable is not supplied with the unit. The RS-485/422 lines are ter-
minated with a 120 ohm resistor. This can be disabled by moving the termina-
tion jumper inside the unit to the OFF position. This requires removing the top
of the case. To do this, remove the 4 screws on the bottom side of the unit.
RS-485/422 Terminals
A : Positive RS-485
B : Negative RS-485
Gnd: Signal Ground
RS-485 is rated to 4,000 feet (1,200 m) at 90 kbs. It operates by default at
115.2 kbps which reduces the theoretical range slightly. The RS-485 port on
the CC-3000 is surge protected but is not isolated.
