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Connecting Routers to the Cisco Redundant Power System

If your router uses the Cisco Redundant Power System (RPS), refer to the Cisco RPS Hardware Installation Guide for

instructions about the power connections.To locate these documents, see the “Where to Go Next” section on page 24.

WAN, LAN, and Voice Connections

The connections and cables listed here are described in detail in the following documents:

• Cisco 3700 Series Hardware Installation Guide

• Cisco Network Modules Hardware Installation Guide

• Cisco Interface Cards Installation Guide

• Cisco Modular Access Router Cable Specifications

For information about accessing these documents, see the “Where to Go Next” section on page 24.

Table 3 summarizes some typical WAN, LAN, and voice connections for Cisco 3745 routers.

Table 3 WAN, LAN, and Voice Connections

Port or Connection Port Type, Color Connected to: Cable

FastEthernet RJ-45, yellow, Ethernet hub or switch Straight-through Ethernet

T1/E1 WAN RJ-48C/CA81A, blue T1 or E1 network RJ-48 T1

Cisco serial 60-pin D-sub CSU/DSU and serial network or

equipment

Cisco serial transition cable that matches

the signaling protocol (EIA/TIA-232,

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

EIA/TIA-530)and the serial port operating

mode (DTE or DCE).

1. See the Cisco Modular Access Router Cable Specifications document for information about selecting these cables.

Cisco Smart serial Cisco Smart compact

connector, blue

CSU/DSU and serial network or

equipment. For WIC-2T and

WIC-2A/S only

DSL RJ-11C/CA11A,

lavender

Network demarcation device for

service provider’s DSL interface

RJ-11

T1 digital voice RJ-48C/CA81A, tan Digital PBX RJ-48 T1 cable

Analog voice FXS RJ-11, gray Telephone, fax RJ-11

Analog voice FXO RJ-11, pink Central office, analog PBX RJ-11

Analog voice E&M RJ-11, brown Analog PBX RJ-11

BRI S/T WAN

(external NT1)

RJ-48C/CA81A, red NT1 device or private integrated

network exchange (PINX)

RJ-48

BRI U WAN

(built-in NT1)

RJ-49C/CA-A11,

orange

ISDN network RJ-49

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 DSU/CSU 8-pin modular, blue RJ-48S interface RJ-48 straight-through

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 27 28

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