Chapter 3 Installing the Router

Connecting WAN, LAN, and Voice Cables

Table 3-3

WAN, LAN, and Voice Connections

 

 

 

 

 

Port or Connection

Port type, color

Connection

Cable

 

 

 

 

 

Fast Ethernet

 

RJ-45, yellow,

Ethernet hub

Straight-through Ethernet

 

 

 

 

 

T1/E1 WAN

 

RJ-48C/CA81A,

T1 or E1 network

RJ-48 T1/E1

 

 

blue

 

 

 

 

 

 

 

Cisco serial

 

60-pin D-sub, blue

CSU/DSU and serial network or

Cisco serial transition cable that matches

 

 

 

equipment

the signaling protocol (EIA/TIA-232,

 

 

 

 

EIA/TIA-449, V.35, X.21, or

Cisco Smart Serial

Cisco Smart

CSU/DSU and serial network or

EIA/TIA-530) and the serial port

 

 

compact connector,

equipment

 

 

operating mode (DTE or DCE).

 

 

blue

For WIC-2T and WIC-2A/S only

 

 

 

 

 

 

See the Cisco Modular Access Router

 

 

 

 

 

 

 

 

Cable Specifications document for

 

 

 

 

information about selecting these cables.

 

 

 

 

 

DSL1

 

RJ-11C/CA11A,

Network demarcation device for

RJ-11

 

 

lavender

service provider’s DSL interface

 

 

 

 

 

T1/E1 digital voice

RJ-48C/CA81A,

Digital PBX

RJ-48 T1/E1 cable

 

 

tan

 

 

 

 

 

 

Analog voice FXS2

RJ-11, gray

Telephone, fax

RJ-11

Analog voice FXO3

RJ-11, pink

Central office, analog PBX

RJ-11

Analog voice E&M4

RJ-11, brown

Analog PBX

RJ-11

BRI S/T WAN

 

RJ-45/CB-1D,

NT1 device or private integrated

RJ-45 straight-through

(external NT1)

 

orange

network exchange (PINX)

 

 

 

 

 

 

BRI U WAN

 

RJ-49C/CA-A11,

ISDN network

RJ-48 straight-through

(built-in NT1)

 

red

 

 

 

 

 

 

 

CT1/PRI

 

T1

External T1 CSU

DB-15 T1 serial cable

 

 

 

 

 

CT1/PRI-CSU

 

T1

RJ-48C/CA81A interface

RJ-48 straight-through

 

 

 

 

 

CE1/PRI

 

E1

E1 network

DB-15 to BNC, DB-15 to DB-15, DB-15

 

 

 

 

to twinax, or DB-15 to RJ-45

 

 

 

 

56/64-kbps CSU/DSU

8-pin modular, blue

RJ-48S interface

RJ-48 straight-through

 

 

 

 

 

1.DSL = digital subscriber line.

2.FXS = foreign exchange station.

3.FXO = foreign exchange office.

4.E&M = ear and mouth.

Connection Procedures and Precautions

Connect each WAN, LAN, and voice cable to the appropriate connector on the chassis or on a network module or interface card.

Position the cables carefully, so that they do not put strain on the connectors.

Organize cables in bundles so that cables do not intertwine.

Inspect the cables to make sure that the routing and bend radiuses are satisfactory. Reposition cables, if necessary.

Cisco 3700 Series Routers Hardware Installation Guide

 

OL-2180-08

3-21

 

 

 

Page 67
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Cisco Systems 3700 Series manual Connection Procedures and Precautions, Port or Connection Port type, color Cable

3700 Series specifications

Cisco Systems 3700 Series routers are a pivotal part of Cisco's portfolio, designed for medium to large enterprises aiming to deliver secure and efficient networking capabilities. Introduced as a versatile solution, these routers provide a comprehensive blend of performance, scalability, and investment protection.

One of the standout features of the Cisco 3700 Series is its modular architecture, allowing organizations to customize their router according to specific needs. This modularity supports various modules for different functions, including voice, data, and video, making the 3700 Series an ideal choice for converged networking environments. Administrators can enhance functionality through an array of WAN and voice interface cards that adapt as the organization's needs evolve.

The 3700 Series is built on Cisco's IOS (Internetwork Operating System), ensuring robust and high-quality performance. It supports advanced routing protocols including EIGRP, OSPF, and BGP, facilitating efficient data transmission across diverse environments. This versatility helps organizations implement sophisticated multi-site connectivity and enables reliable performance in complex network scenarios.

Security is a paramount concern in modern networking, and the Cisco 3700 Series delivers with features such as integrated firewall services, VPN support, and intrusion detection capabilities. These security measures protect sensitive data and ensure secure communication between remote sites—critical in today’s cyber landscape.

Another key characteristic of the 3700 Series is its support for Quality of Service (QoS), which prioritizes time-sensitive traffic such as voice and video. By ensuring that critical applications receive the bandwidth they require, organizations can maintain the quality of service that their users expect.

Moreover, the Cisco 3700 Series is designed with redundancy in mind. Features like dual power supplies and hot-swappable fan trays enhance reliability and uptime, which are crucial for mission-critical applications.

Furthermore, energy efficiency is an increasingly important consideration in network design. The Cisco 3700 Series adheres to modern energy standards, helping reduce the overall carbon footprint while supporting high-performance capabilities.

In summary, the Cisco Systems 3700 Series routers stand out for their modularity, advanced routing capabilities, robust security features, and energy efficiency, making them an optimal choice for enterprises that not only need performance but also flexibility and reliability in their networking solutions. As businesses continue to evolve and adapt, the Cisco 3700 Series is a dependable partner in their connectivity journey, ensuring they can meet current demands while preparing for future challenges.