Specifications

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Cisco ONS 15454 Installation and Operations Guide, R3.2
January 2005
Chapter 1 Hardware Installation
Coaxial Cable Installation
1.10 Coaxial Cable Installation
Caution Always use the supplied ESD wristband when working with a powered ONS 15454. Plug the
wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.
When using ONS 15454 DS-3 electrical cables, the cables must terminate on an EIA installed on the
ONS 15454 backplane. EIAs are available with SMB and BNC connectors. All DS-3 cables connected
to the ONS 15454 DS-3 card must terminate with coaxial cables using the desired connector type to
connect to the specified EIA. For information about physically installing an EIA in the field, see the
“Install a BNC, High-Density BNC, or SMB EIA” procedure on page 1-22. For information about
coaxial cable management, see the “Coaxial Cable Management” section on page 1-57.
The electromagnetic compatibility (EMC) performance of the system depends on good-quality DS-3
coaxial cables, such as Shuner Type G 03233 D, or the equivalent.
1.10.1 BNC Connector Installation
For a description of BNC EIAs, see the “BNC EIA” section on page 1-17. The BNC connectors on the
EIA supports Trompeter UCBJ224 (75 Ohm) 4 leg connectors. Right-angle mating connectors for the
connecting cable are AMP 413588-2 (75 Ohm) connectors. If preferred, you can also use a straight
connector of the same type. Use RG-59/U cable to connect to the ONS 15454 BNC EIA. These cables
are recommended to connect to a patch panel and are designed for long runs of up to 450 feet.
Procedure: Install Coaxial Cable With BNC Connectors
Step 1 Place the BNC cable connector over the desired connection point on the backplane.
Figure 1-25 shows how to connect a coaxial cable to the BNC EIA using a right-angle BNC cable
connector.
Step 2 Position the cable connector so that the slot in the connector is over the corresponding notch at the
backplane connection point.
Step 3 Gently push the connector down until the notch backplane connector slides into the slot on the cable
connector.
Step 4 Turn the cable connector until the notch clicks into place.
Step 5 Tie wrap or lace the cables to the EIA according to Telcordia standards (GR-1275-CORE) or local site
practice.
Step 6 Route the cables to the nearest side of the shelf assembly through the side cutouts according to local site
practice. The rubber coated edges of the side cutouts prevent the cables from chafing.