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IntroductionPassport 4400 Hardware Installation Manual
1-2
Passport 4400 units are multimedia, frame relay access devices deployed as an
overlay to an existing Passport frame relay network. In this configuration,
Passport 4400 units form distinct networks in which separate units
communicate using switched virtual circuits (SVCs) provided by the Passport
backbone. This arrangement allows small branch sites to consolidate
multimedia traffic (such as voice and LAN) over a single low-speed network link
(operating at speeds such as 56 or 64 Kb/s) and pass traffic through regional
concentration sites served by Passport units.
Once deployed and configured, Passport 4400 units provide the following
services:
• Voice and fax services via four different voice modules
• LAN services such as bridging, IP Prioritization, and routing IP and
IPX protocols
• Frame Relay services
• HTDS services, for tunneling HDLC and SDLC traffic
• Constant Bit Rate (CBR) services
• Data Services (Async/TCP, SNA, X.25)
• VoIP
• OSPF
• WAN services
• Traffic Management
• Utility and Administration features
The mix of hardware and functions in each Passport 4400 unit depends on the
application and site requirements. The major hardware components of the
Passport 4400 unit are described in this chapter:
• 4430 AC, 3-slot unit, Ethernet Base Module, AC power - NTAU08CA
• 4450 AC, 5-slot unit, Ethernet Base Module, AC power - NTAU09CA
• 4450 DC, 5-slot unit, Ethernet Base Module, DC power - NTAU12CB
• 4450 ACR, 5-slot unit, Ethernet Base Module, AC power with
redundant power supply - NTAU10CA
• 4450 DCR, 5-slot unit, Ethernet Base Module, DC power with
redundant power supply - NTAU13CB
• 4455 AC, 5-slot unit, Ethernet Base Module, AC power with 160 watt
power supply - NTAU09NA
• 4455 ACR, 5-slot unit, Ethernet Base Module, AC power with 200 watt
power supply - NTAU10NA
The chassis houses the modules that provide the various services offered by the
Passport 4400 unit. The number of slots indicates the maximum number of
modules, including the base module, that can be supported by each unit.