Specifications

2-3

PA-T3+ Serial Port Adapter Installation and Configuration

OL-3505-03

Chapter 2 Preparing for Installation

75-Ohm In-Line Coaxial Attenuator

A 75-ohm in-line coaxial attenuator may be required to tune the signal between the PA-T3+ and the

far-end equipment, if the port adapter is experiencing line code violations (LCVs). LCVs occur when the

far-end equipment transmit signal saturates the front-end receiver of the PA-T3+.

Cisco offers an attenuator kit (ATTEN-KIT-PA=) that contains five attenuators with fixed values ranging

from 3 dB to 20 dB. For more information on the attenuator kit, go to the following website:

http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/12884att.htm

Checking Hardware and Software Compatibility

To check the minimum software requirements of Cisco IOS software with the hardware installed on your

router, Cisco maintains the Software Advisor tool on Cisco.com. This tool does not verify whether

modules within a system are compatible, but it does provide the minimum IOS requirements for

individual hardware modules or components.

Note Access to this tool is limited to users with Cisco.com login accounts.

To access Software Advisor, click Login at Cisco.com and go to Technical Support Help—Cisco TAC:

Tool Index: Software Advisor. You can also access the tool by pointing your browser directly to

http://www.cisco.com/cgi-bin/support/CompNav/Index.pl.

Choose a product family or enter a specific product number to search for the minimum supported

software release needed for your hardware.

Safety Guidelines

This section provides safety guidelines that you should follow when working with any equipment that

connects to electrical power or telephone wiring.

Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might

harm you. A warning symbol precedes each warning statement.