Appendix C Installing and Upgrading Memory and Packet Voice Data Modules

Installing a PVDM

 

 

 

 

Table C-1 PVDM and VIC Combinations

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number

 

 

 

 

 

 

 

PVDM

of DSPs

Supported VIC Combinations

 

 

 

 

 

 

 

 

 

 

 

 

PVDM-256K-4

1

1 analog VIC

 

 

 

 

 

 

 

 

 

 

 

 

PVDM-256K-8

2

Up to 2 analog VICs or

 

 

 

 

 

 

1 voice-BRI VIC

 

 

 

 

 

 

 

 

 

 

 

 

PVDM-256K-12

3

Up to 3 analog VICs or

 

 

 

 

 

 

1 analog VIC and 1 voice-BRI VIC

 

 

 

 

 

 

 

 

 

 

 

 

PVDM-256K-16

4

Up to 4 analog VICs or

 

 

 

 

 

 

Up to 2 voice-BRI VICs or

 

 

 

 

 

 

Up to 2 analog VICs and 1 voice-BRI VIC

 

 

 

 

 

 

 

 

 

 

 

 

PVDM-256K-20

5

Up to 4 analog VICs or

 

 

 

 

 

 

Up to 2 voice-BRI VICs or

 

 

 

 

 

 

Up to 3 analog VICs and 1 voice-BRI VIC or

 

 

 

 

 

 

1 analog VIC and up to 2 voice-BRI VICs

 

 

 

 

 

 

 

 

 

 

 

 

The Cisco 1760 router has two PVDM slots. Any of the PVDMs can occupy either

 

 

 

 

slot. The total number of DSPs provided by one or two PVDMs installed in those

 

 

 

 

slots must be greater than or equal to the number of DSPs required by the number

 

 

 

 

and type of VICs installed, as described in Table C-1.

 

 

 

 

For example, if you have one PVDM (a single DSP), and you want to increase the

 

 

 

 

number of DSPs to 3, you can either add a PVDM-256K-8 in the second slot or

 

 

 

 

replace the PVDM-256K-4 with a PVDM-256K-12.

 

 

 

 

Follow these steps to install a PVDM on the router motherboard.

 

 

 

 

 

 

 

 

 

Warning

During this procedure, wear grounding wrist straps to avoid ESD damage to the

 

 

 

 

router. Do not directly touch the backplane with your hand or any metal tool, or

 

 

 

 

you could shock yourself.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Step 1

Locate the PVDM slots on the motherboard. (See Figure C-3.)

 

 

Step 2

Remove any existing PVDM modules by pulling the PVDM snaps away from the

 

 

 

 

module. (See Figure C-6.)

 

 

 

 

 

Cisco 1760 Modular Access Router Hardware Installation Guide

 

 

C-8

 

 

 

 

 

78-13342-03

 

 

 

 

 

 

 

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Cisco Systems 1760 manual Number, Pvdm, DSPs Supported VIC Combinations, You could shock yourself

1760 specifications

The Cisco Systems 1760 series routers are part of Cisco’s popular line of integrated services routers, designed primarily for small to medium-sized businesses and branch offices. The 1760 series was introduced to provide robust connectivity and routing solutions that facilitate secure and reliable networking. Aimed at offering flexibility, these routers integrate multiple functionalities to enhance operational performance.

One of the main features of the Cisco 1760 router is its modularity. It supports various interface and service modules that allow for customization based on specific networking needs. This modular design enables businesses to expand their networking capabilities over time without necessitating a complete hardware overhaul. The router typically comes equipped with two WAN slots and numerous interface options, including Fast Ethernet and serial interfaces.

The 1760 series routers also support advanced security features, providing businesses with a secure environment for their data transmissions. Built-in firewall capabilities, along with support for Virtual Private Network (VPN) protocols, ensure that sensitive information remains protected. Furthermore, the integration of IPsec and MPLS security features assists organizations in maintaining secure and scalable connections across diverse networks.

Another characteristic of the Cisco 1760 is its support for various technologies, including Quality of Service (QoS). QoS functionality allows network administrators to prioritize traffic, ensuring that critical applications receive the bandwidth they require while minimizing latency. This ability is particularly valuable in environments where voice, video, and essential data applications compete for resources.

The router’s ease of management is also noteworthy. With Cisco’s IOS (Internetwork Operating System), the 1760 provides a user-friendly interface allowing for straightforward configuration and monitoring. The simplicity in managing the network devices helps reduce the burden on IT personnel and enhances overall operational efficiency.

Further enhancing the router’s capabilities is its support for voice over IP (VoIP) applications, making it an ideal choice for organizations looking to implement modern telephony solutions. The ability to support multiple voice channels while maintaining adequate data throughput positions the 1760 as an attractive option for businesses transitioning to unified communications.

In summary, the Cisco Systems 1760 series routers exhibit a harmonious blend of modularity, robust security, traffic management, and VoIP support. They effectively meet the demands of modern networking environments, making them a reliable choice for organizations aiming to streamline operations while ensuring secure connectivity. With their adaptable design, these routers can serve as a powerful backbone for enterprise networking needs.