Cisco 6400 Overview

The Cisco 6400 Universal Access Concentrator (UAC), hereinafter referred to as the "Cisco 6400," is the first of a new generation of broadband concentrators that support Cisco Systems' end-to-end ATM transmission services, PPP termination services, and tunneling services.

The Cisco 6400 combines Cisco Systems' IOS ATM switching and routing capabilities in a modular and redundant manner to optimize and manage the aggregation of traffic from a variety of network access technologies.

1.1 Application Environment of the Cisco 6400

The Cisco 6400 is designed primarily for use in a telephone company Central Office (CO) transmission environment. Therefore, the Cisco 6400 meets Bellcore Network Equipment Building Systems (NEBS) and European Telecommunications Standards Institute (ETSI) requirements with regard to the following equipment-related matters:

Physical size
Safety
Electrical characteristics
Temperature
Humidity
Shock and earthquake resistance

A Cisco 6400 can be installed (co-located) in the CO in the same rack as the transmission equipment. Alternatively, a Cisco 6400 can be remotely located to concentrate traffic from multiple locations, thus avoiding rack space limitations that might exist in the CO environment.

1.2 Major Components of the Cisco 6400

Figure 1-1 shows a Cisco 6400 that has been populated with a full complement of circuit boards and components. A Cisco 6400 system can contain the following:

Two node switch processor cards (NSPs)---Can be installed in either or both of two dedicated slots (0A and 0B) in the middle of the Cisco 6400 chassis. One NSP is required for system operation; a second NSP provides fault tolerance.
Node route processor cards (NRPs)---Can be installed in any one or all of the eight chassis slots numbered 1 to 8. Figure 1-1 shows three NRPs installed in chassis slots 1, 2, and 8.
Half-height node line cards (NLCs)---Can be installed in any one or all of the eight chassis slots numbered 1 to 8. One or two NLCs can be installed in each slot, for a maximum of 16 NLCs per system. Figure 1-1 shows 10 NLCs installed in the Cisco 6400---two each in slots 3, 4, 5, 6, and 7.
Power entry modules (PEMs)---Can be installedP in either or both of two dedicated bays in the left side of the Cisco 6400. One PEM is required for system operation; a second PEM provides power redundancy.
Blower module---Is installed in a dedicated bay at the top front of the Cisco 6400.
Air filter assembly---Is installed in a dedicated bay at the bottom front of the Cisco 6400.

Figure 1-1: Front View of the Cisco 6400

Figure 1-2 shows a rear view of the Cisco 6400 chassis.

Figure 1-2: Rear View of the Cisco 6400

The rear of the Cisco 6400 chassis (see Figure 1-2) incorporates the following connection facilities:

Blower module power connector.
Thirty-two pairs of DS-3 coaxial connectors---One receive (RX) port and one transmit (TX) port per DS-3 pair.
Sixteen high-density T1/E1 connectors.
Two building integrated timing source (BITS) connectors---One connector is associated with the left NSP slot (0A) in the Cisco 6400 chassis (see Figure 1-1), and one connector is associated with the right NSP slot (0B) in the Cisco 6400 chassis.
An alarm terminal block---
Provides connectors for an external alarm monitoring system that can be used to sense three alarm conditions in the Cisco 6400 chassis:
- Minor
- Major
- Critical

: Each alarm connector incorporates a normally closed (NC) contact, a common (COM) contact, and a normally open (NO) contact.

Two power terminal blocks---One connector that is associated with the upper PEM bay (DC PWR 0) in the Cisco 6400 chassis (see Figure 1-1), and one connector that is associated with the lower PEM bay (DC PWR 1) in the Cisco 6400 chassis.
System grounding connector---The second and third holes from the right at the bottom of the Cisco 6400 chassis (see Figure 1-1) are threaded to enable the attachment of a system grounding cable.

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