Cisco Systems 15454M6DC 1.10 Coaxial Cable Installation

1-36

Cisco ONS 15454 Installation and Operations Guide

November 2001

Chapter1 Hardware Installation

Coaxial Cable Installation

Step 1 Use #22 or #24 AWG wire.

Step 2 Wrap the craft interface wires on the appropriate wire-wrap pins according to local site practice.

Note For information about attaching ferrites to wire-wrap pin fields, see the “Ferrite Installation”

section on page 1-61.

Step 3 Wrap the ground shield of the craft interface cable to the frame-ground pin.

Step 4 Wrap the ground wire of your computer cable to pin A3 on the cra ft p i n fi eld.

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 c ab les mus t ter mina te on a n EIA inst all ed o n th e

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 page1-57.

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.

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 mat ing c on nect ors for t he

connecting cable are AMP 413588-2 (75 Ohm) connectors. If preferred, you can also use a straig ht

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 desig ned for lo ng r uns of up to 450 f eet.

Step 1 Place the BNC cable connector over the de si red co nne cti on p oin t o n t h e back pl an e.

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 c onnec t or i s o ve r th e co rr esp ondin g n otc h a t t he

backplane connection point.