© 1999, AXCESS
TM
Inc.
750.001.003
Revised June 1999
101
Appendix A: Coaxial Cable
The
number one problem
encountered during installation is wiring
technique and connectors. Ensure that no stray braid wires are
touching the center contact pin when pushing it into the connector.
This may cause the equipment to function intermittently or with
reduced range. Good wiring techniques will eliminate considerable
troubleshooting time later in the installation.
Required Materials
•
RG-58/U coaxial cable with 50-ohm impedance (nominal), solid
copper center conductor, 55% tinned copper braid or better,
100% foil shield coverage (for example, Belden 9310).
•
3-blade rotary coaxial cable stripper
•
3-piece crimp type male BNC connector (for example, Amphenol
31-320)
•
Diagonal
cutters
•
BNC
crimpers
•
Multimeter with continuity check
Attaching the BNC Connector
Step 1:
Cut RG-58/U coaxial cable and trim jacket.
Step 2:
Slip the crimp sleeve over the cable. Place the contact pin
onto the inner conductor. The end of contact and insulator
must be butting and square.
Step 3:
Crimp with appropriate tooling.
Step 4:
Flare the outer braid and gently but firmly push the contact
into the connector housing until a gentle snap is felt,
indicating the contact is in place.
Step 5:
Slip the crimp sleeve in place, butting the flange against
the connector body.
Step 6:
Crimp with the appropriate tool.
Step 7:
Test for continuity of the inner conductor from connector to
connector. Test for continuity between connectors. Test for
insulation between inner conductor and connectors.