1723 W. 4th Street Tempe Arizona 85281
P
: 800.638.6104
|
F
: 480.966.6728
|
E
|
www.covid.com
USER MANUAL
Page 7
If the cable is terminated on both sides, start by cutting off the end that will be used for connecting to the
unit . Then, strip the outer jacket of the cable back by about 1 inch like what is shown in Step 1 below . Once
the outer jacket is removed, you can optionally add heat shrink around the conductors and over the exposed
drain wire like in the picture of step 2 . Next, strip the ends of the conductors back about 3/16” in order to
make good contact inside of the captive screw connector . The final step is to attach the captive screw connec-
tor to the end of the cable matching the conductors on the other side of the cable to what is shown in step 3,
use the connectors shown in the following figure as a reference if using DB9 male or female . Test the conduc-
tors with a multimeter to confirm termination .
Preparing RS232 Cable
What you will need:
•
A two-conductor cable with ground terminated with DB9 connectors or not
•
Wire strippers
•
Screwdriver (flat head)
•
3 .5mm captive screw connector with 3 positions (included with plate)
•
Heat gun and heat shrink (optional)
•
Multimeter (optional)
Depending on your setup, you will need an RS232 cable with terminal block on one end to connect to the unit
and either another terminal block or DB9 on the other side . The focus of this section will be on terminating
the terminal block side with the proper pinout because that is what is connected to the unit . The other end
of the cable is dependent on what the unit is connecting too, but all the information in this section will help to
get the proper pinout in any case . As a tip, if connecting to a computer without a serial port, a USB to serial
port converter can be used to communicate with RS232 .
HDBase-T Slim-Line Transmitter - THB-200