VCO/4K Hardware Configuration Guidelines

Nonredundant System

The basic nonredundant VCO/4K system is configured with the following hardware components:

The system enclosure
One power supply module
Control circuit cards

One Combined Controller Assembly with CPU (located in slots 3 and 4)
One Network Bus Controller 3 (NBC3) with Digital Tone Generator 2 (DTG-2) mezzanine card (located in slot 1)

Note Systems running VCO/4K V5.2(0) or higher may use SPC-TONE in place of DTG-2. See the Cisco VCO/4K System Software Release Notes for additional details.

One Alarm Arbiter Card (AAC)
One Storage/Control I/O Module (located to the rear of slots 3 and 4)

One ring generator (optional) (located above the power supply)

Note A ring generator is needed only if you are using an LTC-8 or SLIC-2 card for local direct phone connection.

One fan unit

Figure 1-1 shows a basic VCO/4K system with the front door removed.

Figure 1-1: Nonredundant VCO/4K System (Front View)

Redundant System

To configure a basic VCO/4K system for redundancy, add the following hardware components:

A second Combined Controller Assembly with CPU in card slots 5 and 6
A second NBC3 with DTG-2 in card slot 2

Note Systems running VCO/4K V5.2(0) or higher may use SPC-TONE in place of DTG-2. See the Cisco VCO/4K System Software Release Notes for additional details.

A second Storage/Control I/O Module in slots 5 and 6 of the I/O module rack at the back of the system
A second power supply module to the right side of the power subsystem (load sharing) with one (optional) ring generator

Note A ring generator is needed only if you are using an LTC-8 or SLIC-2 card for local direct phone connection.

Redundant systems do not require a second AAC or fan unit.

Expansion

The system enclosure has 15 slots for adding network interface cards and service circuit cards.

Basic System Configuration Table

Table 1-1 is the configuration table for basic VCO/4K systems.

Table 1-1: Basic VCO/4K System Configuration

Basic System Configurations	Assembly Number	Price Each
Basic DC or Dual DC system (nonredundant)
Control, Storage, and Power Redundancy Package (DC)^¹
Basic AC System (nonredundant)
Control, Storage, and Power Redundancy Package (AC)¹
19-inch rack-mounting kit
24-inch rack-mounting kit
Documentation set (included with each basic system)		no charge
Additional copies of documentation (by set or volume)
	A. Subtotal Equipment Price

¹This package contains a Combined Controller with CPU, Storage/Control I/O Module, Power Supply Module, and NBC3.

Table of Contents

VCO/4K Hardware Configuration Guidelines

Nonredundant System

Redundant System

Expansion

Basic System Configuration Table