Cisco 2524 - Router - EN Guida all'installazione

CHAPTER

Overview of the Cisco 2524 and Cisco 2525 Routers 1-1

Overview of the Cisco 2524

and Cisco 2525 Routers

The Cisco 2524 and Cisco 2525 routers provide LAN and WAN access in a low-cost

modular router platform that can grow with your internetworking needs. The Cisco 2524

offers an Ethernet (attachment unit interface [AUI] or 10BaseT) LAN connection, and the

Cisco 2525 offers a Token Ring (shielded twisted-pair [STP] or unshielded twisted-pair

[UTP]) LAN connection. Both routers can accommodate up to three WAN modules—two

synchronous serial and one Integrated Services Digital Network (ISDN).

The choice of synchronous serial WAN modules is as follows:

•2-wire switched 56-kbps data service unit/channel service unit (DSU/CSU)

•4-wire 56/64-kbps DSU/CSU

•Fractional T1/T1 DSU/CSU

•Five-in-one synchronous serial

Note The five-in-one synchronous serial WAN module gets its name from the five types

of signaling it supports: EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA-530. You can

order from Cisco Systems a DB-60 shielded serial transition cable. The router end of the

shielded serial transition cable has a DB-60 connector; the other end of the cable has the

appropriate connector for the standard interface you specify.

The choice of ISDN WAN modules is as follows:

•ISDN Basic Rate Interface (BRI)

•ISDN with integrated network termination 1 (NT1) device

1-2 Cisco 2524 and Cisco 2525 Router User Guide

Features

The ISDN WAN modules are designed so that you cannot insert them into the synchronous

serial WAN slots. A blank slot cover is installed over unused slots.

Features The Cisco 2524 and Cisco 2525 routers include the following features:

•Three slots for WAN modules

•One Ethernet (AUI or 10BaseT) interface on the Cisco 2524 router

•One Token Ring (STP or UTP) interface on the Cisco 2525 router

•Dynamic random-access memory (DRAM) for main system memory and shared

memory

•Nonvolatile random-access memory (NVRAM) for storing configuration information

•Flash memory for running Cisco IOS software

•EIA/TIA-232 console port for connecting a console terminal

•EIA/TIA-232 auxiliary port for connecting a terminal or modem

Note EIA/TIA-232 and EIA/TIA-449 were known as recommended standards RS-232

and RS-449 before their acceptance as standards by the Electronic Industries Association

(EIA) and Telecommunications Industry Association (TIA).

Overview of the Cisco 2524 and Cisco 2525 Routers 1-3

Features

Figure 1-1 shows the front panel, which is the same for both routers.

Figure 1-1 Cisco 2524 and Cisco 2525 Front Panel

Figure 1-2 shows the rear panel of the Cisco 2524 router, and Figure 1-3 shows the rear

panel of the Cisco 2525 router.

Figure 1-2 Cisco 2524 Rear Panel

H1690

SERIAL 1

BRI 0

Power

H5045

On/off

switch

Console

port

(RJ-45)

10BaseT

port

(RJ-45)

Ethernet AUI

port (DB-15) LAN

activity

LED

Ethernet

link LED Auxiliary

port

(RJ-45)

1-4 Cisco 2524 and Cisco 2525 Router User Guide

Features

Figure 1-3 Cisco 2525 Rear Panel

Figure 1-4 through Figure 1-9 show the WAN modules. Figure 1-10 shows the blank slot

cover.

Figure 1-4 2-Wire Switched 56-kbps DSU/CSU WAN Module

H5271

Power

On/off

switch

Console

port

(RJ-45)

UTP

port

(RJ-45)

Token Ring

port (DB-9) LAN

activity

LED

Token Ring

in-ring LED Auxiliary

port

(RJ-45)

SERIAL 1

SERIAL 0 BRI 0

H5046

RJ-11

2-WIRE

56K

DSU/CSU

TX LB

RX AL

Carrier

detect

LED

Receive

LED

Alarm

LED

Loopback

LED

Transmit

LED

Captive

screw

aptive

screw

Overview of the Cisco 2524 and Cisco 2525 Routers 1-5

Features

Figure 1-5 4-Wire 56/64-kbps DSU/CSU WAN Module

Figure 1-6 Fractional T1/T1 DSU/CSU WAN Module

H5047

RJ-48S

4-WIRE

56K/64K

DSU/CSU

TX LB

RX AL

Carrier

detect

LED

Receive

LED

Alarm

LED

Captive

screw

H5048

RJ-48C

FTI/TI

DSU/CSU

TX LB

RX AL

Carrier

detect

LED

Receive

LED

Alarm

LED

Loopback

LED

Transmit

LED

Captive

screw

aptive

screw

MON

IN OUT NET

JACK

Monitor

jack

1-6 Cisco 2524 and Cisco 2525 Router User Guide

Features

Figure 1-7 Five-in-One Synchronous Serial WAN Module

Figure 1-8 ISDN BRI WAN Module

Figure 1-9 ISDN BRI with Integrated NT1 WAN Module

H5049

SERIAL

Captive

screw

aptive

screw

ACTIVITY

Serial

activity LED

DB-60

H5050

RJ-45

ISDN-BRI

S/T ACTIVITY

ISDN BRI

activity LED

Captive

screw

aptive

screw

H5051

RJ-45

ISDN-BRI

with NTI ACT

Captive

screw

aptive

screw

NTI

Overview of the Cisco 2524 and Cisco 2525 Routers 1-7

Specifications

Figure 1-10 Blank Slot Cover

Specifications

The specifications of the Cisco 2524 and Cisco 2525 routers are listed in Table 1-1.

Table 1-1 System Specifications

Description Specification

Dimensions (H x W x D) 1.75 x 17.5 x 10.56" one rack unit

(4.44 x 44.45 x 26.82 cm)

Weight 10 lb (4.5 kg)

Input voltage, AC power supply

Current

Frequency

Power dissipation

100–240 VAC1

1.2–0.6A

50–60 Hz

40W (maximum), 135.5 Btus2/hr

Input voltage, DC power supply

Current

Power dissipation

40W, 40–72 VDC3

1.5–1.0A

40W (maximum), 135.5 Btus/hr

Processor 20-MHz Motorola 68EC030

H5052

Captive

screw

aptive

screw

Do not plug/unplug modules with power on.

BLANK

1-8 Cisco 2524 and Cisco 2525 Router User Guide

Specifications

WAN interface options • 2-wire switched 56-kbps DSU/CSU (RJ-11)

• 4-wire 56/64-DSU/CSU (RJ-48S)

• Fractional T1/T1 DSU/CSU (RJ-48C)

• Five-in-one synchronous serial (DB-60)

• ISDN BRI (RJ-45)

• ISDN BRI with integrated NT1 (RJ-45)

LAN interface options Cisco 2524: Ethernet AUI (DB-15) or 10BaseT (RJ-45)

Cisco 2525: Token Ring STP (DB-9) or UTP (RJ-45)

Synchronous serial interfaces

(five-in-one synchronous serial WAN

module)

• EIA/TIA-232, EIA/TIA-449, V.35, X.21

(NRZ/NRZI4and DTE/DCE5mode)

• EIA-530 (NRZ/NRZI and DTE mode)

• The five-in-one synchronous serial interface uses the

DB-60 connector at the chassis

Console and auxiliary ports Asynchronous serial (RJ-45)

Operating environment 32–104°F (0–40°C)

Nonoperating temperature –40–185°F (–40–85°C)

Operating humidity 5–95%, noncondensing

Noise level 34 dB6@ 3' (0.914 m)

Regulatory compliance • 2-wire switched 56-kbps DSU/CSU module: FCC

Class A, Part 15

• 4-wire 56/64-kbps DSU/CSU module: FCC Class A,

Part 15 and FCC Part 68

• Fractional T1/T1 DSU/CSU module: FCC Class A,

Part 15 and FCC Part 68

1. VAC = volts alternating current.

2. BTU = British thermal unit.

3. VDC = volts direct current.

4. NRZ = nonreturn to zero; NRZI = nonreturn to zero inverted.

5. DTE = data terminal equipment; DCE = data communications equipment.

6. dB = decibels.

Description Specification

Overview of the Cisco 2524 and Cisco 2525 Routers 1-9

FCC Part 68

The following text is required for FCC Part 68 regulatory compliance:

The equipment complies with Part 68 of the FCC rules. On the bottom of the equipment is

a label that shows the FCC registration number.

If the equipment causes harm to the telephone network, the telephone company may

temporarily discontinue service. If possible, advance notification is given; otherwise,

notification is given as soon as possible. The telephone company will advise the customer

of the right to file a complaint with the FCC.

The telephone company may make changes in its facility, equipment, operations, or

procedures that could affect the proper operation of the equipment; advance notification

and the opportunity to maintain uninterrupted service will be given.

If you experience difficulty with the Cisco 2524 or Cisco 2525 router, please contact Cisco

Systems at 800 553-NETS (6387) or 408 526-4000 for repair and warranty information. If

your equipment is causing harm to the telephone network, the telephone company may

request that you disconnect the equipment until the problem is resolved.

The module contains no user-serviceable parts.

An FCC-compliant telephone cord and a modular plug is provided with the equipment. The

equipment is designed to be connected to the telephone network or premises wiring using

an FCC-compatible modular jack that is Part 68 compliant.

Table 1-2 lists information that may be required when applying to the local telephone

company for leased-line facilities.

1-10 Cisco 2524 and Cisco 2525 Router User Guide

FCC Part 68

Table 1-2 Information About Leased-Line Facilities

Module Type Service Type Digital Facility

Interface Code Service

Order Code Network

Jack

4-Wire 56/64-kbps

DSU/CSU WAN Module 2.4-kbps digital interface 04DU5-24 6.0F RJ-48S

4.8-kbps digital interface 04DU5-48 6.0F RJ-48S

9.6-kbps digital interface 04DU5-96 6.0F RJ-48S

19.2-kbps digital interface 04DU5-19 6.0F RJ-48S

38.4-kbps digital interface 04DU5-38 6.0F RJ-48S

56-kbps digital interface 04DU5-56 6.0F RJ-48S

64-kbps digital interface 04DU5-64 6.0F RJ-48S

Fractional T1/T1

DSU/CSU WAN Module 1.544-Mbps digital interface 04DU9-ISN 6.0N RJ-48C

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