Specifications
xii
PA-T3+ Serial Port Adapter Installation and Configuration
OL-3505-03
Preface
Obtaining Technical Assistance
• Priority level 2 (P2)—Operation of an existing network is severely degraded, or significant aspects 
of your business operations are negatively impacted by inadequate performance of Cisco products. 
You and Cisco will commit full-time resources during normal business hours to resolve the situation.
• Priority level 1 (P1)—An existing network is “down,” or there is a critical impact to your business 
operations. You and Cisco will commit all necessary resources around the clock to resolve the 
situation.
Cisco TAC Website
The Cisco TAC website provides online documents and tools to help troubleshoot and resolve technical 
issues with Cisco products and technologies. To access the Cisco TAC website, go to this URL:
http://www.cisco.com/tac
All customers, partners, and resellers who have a valid Cisco service contract have complete access to 
the technical support resources on the Cisco TAC website. Some services on the Cisco TAC website 
require a Cisco.com login ID and password. If you have a valid service contract but do not have a login 
ID or password, go to this URL to register:
http://tools.cisco.com/RPF/register/register.do
If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco 
TAC website, you can open a case online at this URL:
http://www.cisco.com/tac/caseopen
If you have Internet access, we recommend that you open P3 and P4 cases online so that you can fully 
describe the situation and attach any necessary files.
Cisco TAC Escalation Center
The Cisco TAC website provides online documents and tools to help troubleshoot and resolve technical 
issues with Cisco products and technologies. To access the Cisco TAC website, go to this URL:
http://www.cisco.com/tac
All customers, partners, and resellers who have a valid Cisco service contract have complete access to 
the technical support resources on the Cisco TAC website. Some services on the Cisco TAC website 
require a Cisco.com login ID and password. If you have a valid service contract but do not have a login 
ID or password, go to this URL to register:
http://tools.cisco.com/RPF/register/register.do
If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco 
TAC website, you can open a case online at this URL:
http://www.cisco.com/tac/caseopen
If you have Internet access, we recommend that you open P3 and P4 cases online so that you can fully 
describe the situation and attach any necessary files.










