Cisco 1841 - 1841 Integrated Services Router Manuale di avvio rapido - Pagina 14

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• Cisco Modular Access Router Cable Specifications at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3600/hw_inst/cabling/marcabl.htm

WAN and LAN Connections

The connections and cables listed in Table 1 are described in detail in the Cisco 1800 series hardware installation documents at

the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/1800/hw/index.htm

Caution

Do not connect a WAN, telephone, or fax cable to an interface card until you have completed the installation

procedure.

Warning

Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To

avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away

from the router first. Statement 1026

Table 1 summarizes the basic WAN and LAN connections for the Cisco 1841 router.

Table 1

WAN and LAN Connections

Port or Connection

Fast Ethernet (FE)

T1/E1 WAN

Cisco serial (1T)

Cisco Smart serial (2T)

DSL

BRI S/T WAN

(external NT1

)

BRI U WAN

(built-in NT1)

Analog modem

56/64-kbps

CSU/DSU

1. The color codes are specific to cables shipped by Cisco

2. NT1 = Network Termination 1

3. PINX = Private integrated network exchange

Port Type, Color

Connected To:

RJ-45, yellow

Ethernet hub

RJ-48C

T1 or E1 network or CSU/DSU

60-pin D-sub, blue

CSU/DSU and serial network or

equipment

Cisco Smart compact

CSU/DSU and serial network or

connector, blue

equipment

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

RJ-11C/RJ-14C

Network demarcation device for

service provider's DSL interface

RJ-45, orange

NT1 device or PINX

RJ-49C/CA-A11,

ISDN network

orange

RJ-11

PSTN

8-pin modular

RJ-48S interface

Cable

Crossover to connect to a router

Straight-through to connect to a

switch

RJ-48 T1/E1 straight-through

(Crossover to connect ot a PBX or

any other 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).

Refer to the

Router Cable Specifications

document for information about

selecting these cables.

RJ-11 straight-through for 2-wire

RJ-14 straight-through for 4-wire

RJ-45 straight-through

RJ-49 straight-through

RJ-11 straight-through

RJ-48 straight-through

Cisco Modular Access