cc/td/doc/product/dsl_prod/6260
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Table of Contents

What Is the Cisco 6260?

What Is the Cisco 6260?

This chapter provides an overview of the Cisco 6260 digital subscriber line (DSL) access concentrator and describes the system's hardware components. The chapter is arranged as follows:

Warning For translations of the safety warnings in this chapter, see the "Translated Safety Warnings" appendix.

1.1 Cisco DSL Product Family

The Cisco 6260 is part of a family of DSL products that provides end-to-end service, carrying data between the subscriber's home or office, the telephone central office (CO), and the networks beyond. The Cisco 6000 family includes the following members:

The Cisco DSL family also includes a Frame Relay IDSL multiplexer and a service selection gateway.

1.2 Cisco 6260 System Overview

The Cisco 6260 DSL access concentrator terminates up to 120 ADSL subscriber connections and multiplexes them onto a WAN trunk. (Higher port densities will be available in future releases.) Using a subtending feature, up to 13 Cisco 6260 chassis can be linked to a single WAN trunk. (For details, see the "Subtending" section.)

The Cisco 6260 chassis is completely front-accessible for cabling and maintenance; you should never need access to the back of the unit. The chassis has 30 line card slots, redundant power entry modules (PEMs), and two-speed, software-controlled cooling fans. It is mountable in a 19-inch or a 23-inch (600-mm) equipment rack. It is ETSI-compliant.

The Cisco 6260 runs Cisco IOS software, which supports its ATM switching and management requirements. You can manage the system using either the Cisco DSL Manager (CDM)--a graphical user interface that runs on a Sun SPARCstation--or the Cisco IOS command line interface.

The Cisco 6260 ATM services include configurable PVCs, SVCs (UNI 3.1 and UNI 4.0 signaling), soft PVCs (preconfigured SVCs), and traffic management with four priority queues, configurable traffic policing, and configurable traffic shaping.

ADSL plain old telephone service (POTS) splitters, or voice filters, located both at the subscriber premises and at the CO, support simultaneous voice and data transmission. A POTS splitter that is compatible with the Cisco 6260 and is suitable for CO use is available from Siecor. (If a subscriber is using a telephone line for data only, the POTS splitter connection is not required.)

1.2.1 System Specifications and Compliances

This section lists physical, environmental and electrical specifications of the Cisco 6260 system, along with agency certifications and compliances. The Cisco 6260 is an FCC Class A digital device.


Table 1-1: Cisco 6260 Specifications
Specification Description

Components

32-slot card cage

Backplane

2 power module compartments

2 fan compartments

2 air filter compartments

Power input

Dual inputs, each -48 VDC

Tolerance limits: -40.5 to -75 VDC

Maximum input current: 30A (circuit breaker rating)

Maximum power consumption of a fully loaded chassis1

1200W

Maximum heat dissipation for a fully loaded chassis1

4097 Btu/hour

Dimensions

Height: 23.5 in. (59.8 cm)

Width: 17.5 in. (44.5 cm) (mounting brackets not included)

Depth: 11.0 in. (28.0 cm)

Weight with no components2

37.5 lb (17.0 kg)

Weight fully loaded1

80 lb (36.3 kg)

Operating temperature

23° to 131° F (-5° to 55° C)

Nonoperating temperature

-4° to 149° F (-20° to 65° C)

Operating and storage humidity

5% to 95% relative humidity noncondensing

Operating altitude

0 to 10,000 ft (0 to 3048 m)

Nonoperating altitude

0 to 30,000 ft (0 to 9144 m)

Operating shock

5 to 500 Hz, 0.5 gravity (0.1 octave per minute)

Nonoperating shock

5 to 100 Hz, 1 gravity (0.1 octave per minute);
100 to 500 Hz, 1.5 gravities (0.2 octave per minute);
500 to 1000 Hz, 1.5 gravities (0.2 octave per minute)

Acoustic noise

60 dB at normal fan speed

1A fully loaded chassis has 2 fan trays, 2 air filters, 2 power entry modules, 1 NI-2, 30 line cards, and no cables.
2A chassis with no components has had all cards, fan trays, and PEMs removed.
Table 1-2: Standards and Certifications
Category Description

Emissions

FCC 47CFR15:1997 Class A
CSA Class A
EN55022:1998 Class A
CISPR22:1997
AS/NZ 3548:1995 Class A
VCCI V-3/97.04 Class A
CNS-13438 Class A (Taiwan)

Immunity

ETSI ETS 300 386-1 Public Telecommunications Network Equipment EMC requirements. (Classification of equipment environment shall be for locations other than telco centers: High priority of service.)

ETSI EN 300 386-2:1997 Public Telecommunications Network Equipment EMC requirements. (Classification of equipment environment shall be for locations other than telco centers: High priority of service.)

ETS 300 132-2 Sections 4.8, 4.9

EN50082-2 Electromagnetic compatibility -- Generic Standard, Industrial Environment

EN61000-4-2, ESD Level 4 (15 kV air, 8 kV contact)

EN61000-4-3, RFI Level 3 (10 v/m)

EN61000-4-4, EFT/Burst, Level 4

EN61000-4-5, Surge, 500V common mode at 12 ohms impedance, 500V differential mode at 2 ohms impedance.

EN61000-4-6, RF conducted, Level 3 (10 Vrms)

ITU-T K.20, K.21

Safety

UL 1950
EN60950
CSA C22.2 No. 950
AUSTEL TS001
AS/NZS 3260

Emissions Statements

This section contains statements on Cisco 6260 compliance to the emissions standards of the United States, Canada, and Japan.

Statement for the United States: FCC Class A

Modifying the equipment without Cisco's authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

Statements for Canada

English: This Class A digital apparatus complies with Canadian ICES-003.

French: Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

Statement for Japan

This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.


Statement for Taiwan

This statement is required by Taiwan's Bureau of Standards, Metrology and Inspection (BSMI):

This is a Class A product. In a domestic environment this product may cause radio interference, in which case the user may be required to take adequate measures.


1.2.2 Subtending

You can link together up to 13 Cisco 6260 chassis so that they can be served by a single network trunk port. This is called subtending. Subtending saves money by reducing the number of ports needed in the aggregator or back-haul network to which the Cisco 6260s are connected.

Subtending is accomplished through the use of WAN interfaces (in this release, OC-3c or DS-3). In a subtending arrangement, each chassis is connected by one WAN interface to the chassis above it in the subtending hierarchy, or, if it is at the top of the hierarchy, to the network trunk. Each chassis is connected by one or more WAN interfaces to those below it in the hierarchy.

Two subtending topologies are possible:


Figure 1-1: Tree Topology for DS-3 Interfaces

In order for each chassis in a subtended group to have fair access to the shared trunk, each chassis must have a unique ID number. The originating chassis places this ID number in the GFC field of the ATM header of each cell, and the ID number is used to forward cells up the tree toward the trunk.

The distance allowed between subtended nodes is determined by the WAN interface used. The subtending feature is not intended to provide wide-area connectivity between nodes.


Figure 1-2: Daisy Chain Topology for OC-3c/STM-1 Interfaces

Subtended nodes must be managed as separate units. For further details on subtending, refer to the NI-2 Card Installation and Configuration for the Cisco 6260 publication and the Configuration Guide for Cisco 6000 Family DSLAMs with NI-2.

1.3 Cisco 6260 Chassis

The Cisco 6260 consists of circuitry and connections that reside within a chassis or enclosure that allows modular insertion and removal of the various field-replaceable units (FRUs). The chassis consists of a card cage with slots for line cards and network interface cards; a backplane; a set of connectors that serve subscriber lines; connectors to attach an I/O module; and compartments for power modules, fan trays, and air filters. The chassis is designed for ETS 300 or 19-inch rack mounting.

Figure 1-3 shows a front view of a Cisco 6260 chassis with OC-3c/STM-1 interfaces. Figure 1-4 shows a front view of a Cisco 6260 chassis with DS-3/E3 interfaces.


Figure 1-3: Cisco 6260 Chassis, OC-3c/STM-1 Configuration


Figure 1-4: Cisco 6260 Chassis, DS-3/E3 Configuration

Access Principles

The Cisco 6260 chassis is designed with two access principles in mind:
Figure 1-5: Locking Tab on Card

1.3.1 Card Cage

The card cage has four compartments for line cards, two slots for second-generation network interface (NI-2) cards, and one position for an input-output (I/O) module. The slots are numbered as follows:

All Cisco 6260 line cards can be installed and removed while the rest of the system continues to operate.

The NI-2 card, I/O module, and line cards are described later in this chapter.

1.3.2 Backplane

Located behind the card cage is a backplane that provides the following services:

1.3.3 Subscriber Connectors

Ten female RJ-21 (Champ) subscriber connectors are located at the top of the chassis, facing forward. These 50-pin sockets provide the DSL subscriber connections. Each subscriber connector serves three line card slots.

Disconnecting Cables

Each subscriber connector is equipped with a latch at one end and a screw fastener at the other end. When you disconnect a cable from a subscriber connector, lift the end of the connector with the screw fastener first; the other end of the connector then disengages easily. If you try to lift the latch end first or to pull the cable straight off the connector, it will not release.

The subscriber connectors are numbered 1 to 10, from left to right. Table 1-3 shows how subscriber connectors correspond to card slots and ports. In the table, an asterisk (*) indicates a port that is not available on 4-port line cards.

Pin assignments for the subscriber connectors are shown in Appendix A.


Table 1-3: Mapping of Subscriber Connectors (SC), Slots, and Ports
SC1 Slot Port SC Pins SC1 Slot Port SC Pins SC1 Slot Port SC Pins SC1 Slot Port SC Pins

1

1

1

1, 26

2

19

1

9, 34

3

6

1

42, 17

5

7

1

1, 26

2

2, 27

2

10, 35

2

43, 18

2

2, 27

3

3, 28

3

11, 36

3

44, 19

3

3, 28

4

4, 29

4

12, 37

4

45, 20

4

4, 29

*5

5, 30

*5

13, 38

*5

46, 21

*5

5, 30

*6

6, 31

*6

14, 39

*6

47, 22

*6

6, 31

*7

7, 32

*7

15, 40

*7

48, 23

*7

7, 32

*8

8, 33

*8

16, 41

*8

49, 24

*8

8, 33

2

1

9, 34

20

1

17, 42

4

21

1

1, 26

8

1

9, 34

2

10, 35

2

18, 43

2

2, 27

2

10, 35

3

11, 36

3

19, 44

3

3, 28

3

11, 36

4

12, 37

4

20, 45

4

4, 29

4

12, 37

*5

13, 38

*5

21, 46

*5

5, 30

*5

13, 38

*6

14, 39

*6

22, 47

*6

6, 31

*6

14, 39

*7

15, 40

*7

23, 48

*7

7, 32

*7

15, 40

*8

16, 41

*8

24, 49

*8

8, 33

*8

16, 41

3

1

17, 42

3

4

1

1, 26

22

1

9, 34

9

1

17, 42

2

18, 43

2

2, 27

2

10, 35

2

18, 43

3

19, 44

3

3, 28

3

11, 36

3

19, 44

4

20, 45

4

4, 29

4

12, 37

4

20, 45

*5

21, 46

*5

5, 30

*5

13, 38

*5

21, 46

*6

22, 47

*6

6, 31

*6

14, 39

*6

22, 47

*7

23, 48

*7

7, 32

*7

15, 40

*7

23, 48

*8

24, 49

*8

8, 33

*8

16, 41

*8

24, 49

2

18

1

1, 26

5

1

9, 34

23

1

17, 42

2

2, 27

2

10, 35

2

18, 43

3

3, 28

3

11, 36

3

19, 44

4

4, 29

4

12, 37

4

20, 45

*5

5, 30

*5

13, 38

*5

21, 46

*6

6, 31

*6

14, 39

*6

22, 47

*7

7, 32

*7

15, 40

*7

23, 48

*8

8, 33

*8

16, 41

*8

24, 49

6

24

1

1, 26

7

28

1

9, 34

8

14

1

17, 42

10

15

1

1, 26

2

2, 27

2

10, 35

2

18, 43

2

2, 27

3

3, 28

3

11, 36

3

19, 44

3

3, 28

4

4, 29

4

12, 37

4

20, 45

4

4, 29

*5

5, 30

*5

13, 38

*5

21, 46

*5

5, 30

*6

6, 31

*6

14, 39

*6

22, 47

*6

6, 31

*7

7, 32

*7

15, 40

*7

23, 48

*7

7, 32

*8

8, 33

*8

16, 41

*8

24, 49

*8

8, 33

25

1

9, 34

29

1

17, 42

9

30

1

1, 26

16

1

9, 34

2

10, 35

2

18, 43

2

2, 27

2

10, 35

3

11, 36

3

19, 44

3

3, 28

3

11, 36

4

12, 37

4

20, 45

4

4, 29

4

12, 37

*5

13, 38

*5

21, 46

*5

5, 30

*5

13, 38

*6

14, 39

*6

22, 47

*6

6, 31

*6

14, 39

*7

15, 40

*7

23, 48

*7

7, 32

*7

15, 40

*8

16, 41

*8

24, 49

*8

8, 33

*8

16, 41

26

1

17, 42

8

12

1

1, 26

31

1

9, 34

17

1

17, 42

2

18, 43

2

2, 27

2

10, 35

2

18, 43

3

19, 44

3

3, 28

3

11, 36

3

19, 44

4

20, 45

4

4, 29

4

12, 37

4

20, 45

*5

21, 46

*5

5, 30

*5

13, 38

*5

21, 46

*6

22, 47

*6

6, 31

*6

14, 39

*6

22, 47

*7

23, 48

*7

7, 32

*7

15, 40

*7

23, 48

*8

24, 49

*8

8, 33

*8

16, 41

*8

24, 49

7

27

1

1, 26

13

1

9, 34

32

1

17, 42

2

2, 27

2

10, 35

2

18, 43

3

3, 28

3

11, 36

3

19, 44

4

4, 29

4

12, 37

4

20, 45

*5

5, 30

*5

13, 38

*5

21, 46

*6

6, 31

*6

14, 39

*6

22, 47

*7

7, 32

*7

15, 40

*7

23, 48

*8

8, 33

*8

16, 41

*8

24, 49

1SC = subscriber connector.
* Ports 5 through 8 are present only on 8-port line cards.

1.3.4 I/O Modules

The I/O module is located near the top of the Cisco 6260 chassis, just below the subscriber connectors. A Cisco 6260 chassis must have an I/O module. There are two I/O module versions, one for OC-3c and one for DS-3.

OC-3c I/O Module

The OC-3c version of the I/O module, shown in Figure 1-6, provides a set of contacts for alarm relay and building-integrated timing source (BITS) clock circuits. (The OC-3c NI-2 card has optical connectors for the trunk and subtending ports built into its faceplate, so no connectors are needed on the OC-3c I/O module.) The alarm relay and BITS contacts are a set of 36 posts for wire wrap connections. You need the OC-3c I/O module if you have an OC-3c NI-2 card in the chassis.


Figure 1-6: I/O Module for OC-3c Interfaces

DS-3 I/O Module

The DS-3 version of the I/O module, shown in Figure 1-7, provides three DS-3 interfaces and a set of contacts for alarm relay and BITS clock circuits. Each DS-3 interface consists of two vertically paired BNC connectors--one for receive, one for transmit. The leftmost pair of connectors, P1, comprises the trunk port; the center and right connector pairs, P2 and P3, comprise the two subtending ports. The alarm relay and BITS contacts are a set of 36 posts for wire wrap connections. You need the DS-3 I/O module if you have a DS-3 NI-2 card in the chassis.


Figure 1-7: I/O Module for DS-3 Interfaces

Refer to Appendix A for the pinout of the wire wrap connector on the I/O modules.

1.3.5 Fan Trays and Power Entry Modules (PEMs)

Fan trays and PEMs, which are described in the subsections that follow, are located in compartments at the bottom of the chassis.

Fan Trays

Two fan trays are located below the card cage. Each tray houses four fans. The fans pull cooling air from the bottom front of the chassis and blow the air up through the card cage.

An air filter is located above each fan tray. The air filters must be removed and cleaned periodically. Refer to "Preventive Maintenance," for complete instructions on cleaning the air filters.

The fans have two speeds. By default, they run at low speed. The system turns up the fan speed when

The fan speed returns to normal (low speed) when

Caution The cooling fans in both fan trays must run continuously. The system might suffer thermal damage if the fans in either tray stop for more than 5 minutes.

LEDs that report the status of the fan trays are located on the PEMs beneath the fan trays. See Table 1-4.

As you face the chassis, fan tray 1 is on the left; fan tray 2 is on the right.

A fan tray is shown in Figure 1-8. Each fan tray weighs 2.5 lb (1.13 kg).


Figure 1-8: Fan Tray

PEMs

Each Cisco 6260 chassis is equipped with two -48 VDC PEMs, which distribute DC power within the chassis. The Cisco 6260 needs only one active PEM to operate; if two PEMs are installed, the second PEM serves as a hot backup to the first PEM.

Each PEM should be connected to a single DC power source. For full power redundancy, two PEMs must be installed, and two separate DC power sources must be connected to the chassis.

DC power (-48V) enters the chassis through the terminal blocks on the front of each PEM.

The PEMs reside at the bottom of the chassis, and they are installed and accessed from the front. Each PEM is held in place by the overhanging lip of the fan tray above it. You must remove the fan tray before you can remove the PEM.

In a system with two PEMs, you can remove and replace each PEM while the system continues to operate. However, a system with a single PEM must be powered down before you remove the PEM.

A PEM is shown in Figure 1-9. Each PEM weighs 5.5 lb (2.5 kg).


Figure 1-9: PEM

The following fixtures are present on the front of each PEM:
Note To turn off a Cisco 6260 that has two PEMs, you must flip the circuit breakers on both PEMs to 0 (off).

Table 1-4: PEM LEDs
LED Color Meaning

Input OK

Green

-48V power is available to the chassis.

Out Fail

Red

The PEM is not distributing power to the chassis. Troubleshoot the PEM as described in "Troubleshooting."

Fan Tray 1

Green

The fans in this tray are operating normally.

Red

One or more fans in this tray have failed. Replace the fan tray.

Fan Tray 2

Green

The fans in this tray are operating normally.

Red

One or more fans in this tray have failed. Replace the fan tray.

1.3.6 Cooling Vents

The air intake vents are located at the bottom front of the chassis, as indicated in Figure 1-10. The air exhaust vents are located on the top of the chassis. Do not obstruct the intake and exhaust vents in any way.


Figure 1-10: Air Flow Through Intake and Exhaust Vents on the Chassis

1.3.7 ESD Jack

An electrostatic discharge (ESD) jack is located on the top of the chassis at the right front corner. (See Figure 1-3 or Figure 1-4.) Before removing any components from the chassis or installing any components, ground yourself by connecting a wrist or ankle strap to the ESD jack.

1.4 Network Interface Cards (NI-2s)

This section describes the OC-3c/STM-1 and the DS-3 versions of the NI-2 card. A Cisco 6260 chassis can accommodate one or two NI-2 cards.

1.4.1 What Is the OC-3c/STM-1 NI-2 Card?

The OC-3c/STM-1 version of the second-generation network interface (NI-2) card operates in both the Cisco 6260 and Cisco 6130 systems. The NI-2 card provides the following:

1.4.2 OC-3c/STM-1 NI-2 Card Physical Description

The NI-2 is a 12.38 inch by 8.5 inch (31.45 cm by 21.59 cm) module that resides in slots 10 and 11, in the center of the Cisco 6260 chassis. The faceplate is marked NI-2-155MM-155MM (multimode version) or NI-2-155SM-155SM (single mode version). The faceplate, shown in Figure 1-11, includes the fixtures discussed in the paragraphs that follow.

Trunk and Subtending Ports

Two dual SC connectors are recessed into the NI-2 faceplate. The upper SC connector pair is an uplink; it can serve as either a network trunk port or, in a subtending arrangement, as the subtending interface to the chassis above this one in the hierarchy. The lower SC connector pair is for subtending only; it cannot serve as a trunk port.

Console and Auxiliary Ports

The console and auxiliary ports on the NI-2 are serial EIA/TIA-232 ports with RJ-45 connectors. See Appendix A, "Pin Assignments," for pinouts.

Ethernet Port

The Ethernet port on the NI-2 is a 10BaseT port with an RJ-45 connector. It connects the Cisco 6260 to its management station. See Appendix A, "Pin Assignments," for pinouts.

ACO Switch

The alarm cut-off (ACO) switch is a pushbutton located near the top of the NI-2 faceplate. Press the switch to turn off an audible alarm.

Reset Switch

The reset switch is recessed behind the faceplate to avoid accidental disturbance.


Figure 1-11: OC-3c NI-2 Card Faceplate

LED Indicators

The NI-2 faceplate has four sets of LEDs to indicate system, card, fan, and physical interface status. Table 1-5 tells you how to interpret the system-level LED indicators.


Table 1-5:
LED State Function

Critical Alarm

Red

Lights when a critical alarm is active.

Major Alarm

Red

Lights when a major alarm is active.

Minor Alarm

Amber

Lights when a minor alarm is active.

NI-2 System-Level LEDs

Table 1-6 describes card-level LEDs.


Table 1-6:
LED State Function

Power

Green

The NI-2 is receiving power.

Off

The NI-2 is not receiving power.

Status

Green

No internal faults or problems have been detected on the card.

Off

The card has not booted properly or a problem was detected that prevents normal operation.

Active

Green

This NI-2 is operating as the active network interface in the chassis (important when redundant NI-2 is supported).

Off

This NI-2 is not active.

NI-2 Card-Level LEDs

Some NI-2 cards have LEDs for fans. Table 1-7 describes the fan LEDs. If your NI-2 has no fan LEDs, use the fan LEDs on the power entry modules.


Table 1-7: NI-2 Fan LEDs
LED State Function

Fan 1

Red

One or more fans in fan tray 1 (the left tray) have failed. Replace fan tray 1.

Off

Fan tray 1 is working normally.

Fan 2

Red

One or more fans in fan tray 2 (the right tray) have failed. Replace fan tray 2.

Off

Fan tray 2 is working normally.

Table 1-8 describes LEDs for the Ethernet port. The LEDs are located on the Ethernet connector.


Table 1-8: NI-2 Ethernet Interface LEDs
LED State Indication

ACT (Ethernet Activity)

Green

Data is running over the Ethernet interface.

Off

Data is not running over the Ethernet interface.

LNK (Ethernet Link Status)

Green

The Ethernet link is operative.

Off

The Ethernet link is inoperative.

Two identical sets of LEDs report the status of the trunk and subtending WAN interfaces. These LED sets are labeled TRNK 1 and SBTD 2. Table 1-9 maps the LED sets to the software port numbers. Table 1-10 describes the trunk and subtending interface LEDs.


Table 1-9: OC-3c NI-2 WAN Interface LEDs and Port Numbers
LED Set Software Port Number

TRNK 1

ATM0/1

SBTD 2

ATM0/2
Table 1-10: NI-2 WAN Interface LEDs
LED State Indication

Test

Amber

The software detects that an obtrusive test (loopback) is active on this interface.

Off

The software does not detect any obtrusive test activity.

RX Stat

Amber

The receiver detects a physical layer problem (for example, LOF, LOP, or AIS).

Off

No physical layer problems are detected.

TX Stat

Amber

The far end detects a problem with the local transmitter.

Off

No problems with the local transmitter are detected by the far end.

RCLK

Green

The hardware detects an incoming clock signal.

Off

The hardware detects no incoming clock signals.

1.4.3 OC-3c/STM-1 NI-2 Card Specifications

Table 1-11 lists the physical and electrical specifications of the OC-3c/STM-1 version of the NI-2 card.


Table 1-11: OC-3c/STM-1 NI-2 Specifications
Specification Description

Internal hardware

  • 150 MHz RC64475 CPU

  • Galileo GT64120 system controller

  • 1Mx32 bootflash

  • 4Mx32 Flash

  • 512 KB boot EPROM

Dimensions

Height: 12.38 in. (31.45 cm)
Depth: 8.50 in. (21.59 cm)
Width: 1.80 in. (4.57 cm)

Weight

3.0 lb (1.36 kg)

Power consumption

50W

Level 2 protocol

ATM

Single Mode Card Multimode Card

External interfaces

Two OC-3c/STM-1 (155 Mbps) single-mode ports

Two OC-3c/STM-1 (155 Mbps) multimode ports

Connector type

SC-PC

SC-PC

Fiber type

Intermediate reach single mode

Multimode

Average transmitted power

-15 to -8 dBm

-20 to -14 dBm

Average received power

-8 dBm

-11 dBm

Transmission distance

Up to 20 km (12 miles)

Up to 2 km (1.2 miles)

Wavelength

1310 nm

1300 nm

1.4.4 What Is the DS-3 NI-2 Card?

The DS-3/E3 version of the second-generation network interface (NI-2) card operates in both the Cisco 6260 and Cisco 6130 systems. The NI-2 card provides the following:

1.4.5 DS-3 NI-2 Card Physical Description

The NI-2 is a 12.38 inch by 8.5 inch (31.45 cm by 21.59 cm) module that resides in slot 10 or slot 11, in the center of the Cisco 6260 chassis. The faceplate is marked NI-2-DS3/E3-DS3/E3. The faceplate, shown in Figure 1-12, includes the fixtures discussed in the paragraphs that follow.

Note BNC connectors for the NI-2 trunk and subtending ports are located on the I/O module at the top of the chassis.

Figure 1-12: DS-3 NI-2 Card Faceplate

Console and Auxiliary Ports

The console and auxiliary ports on the NI-2 are serial EIA/TIA-232 ports with RJ-45 connectors. See "Pin Assignments," for pinouts.

Ethernet Port

The Ethernet port on the NI-2 is a 10BaseT port with an RJ-45 connector. It is used to connect the Cisco 6260 to its management station. See "Pin Assignments," for pinouts.

ACO Switch

The alarm cut-off (ACO) switch is a pushbutton located near the top of the NI-2 faceplate. Press the switch to turn off an audible alarm.

Reset Switch

The reset switch is recessed behind the faceplate to avoid accidental disturbance.

LED Indicators

The NI-2 faceplate has several sets of LEDs to indicate system, card, fan, and physical interface status. Table 1-12 tells you how to interpret the system-level LED indicators.


Table 1-12:
LED State Function

Critical Alarm

Red

Lights when a critical alarm is active.

Major Alarm

Red

Lights when a major alarm is active.

Minor Alarm

Amber

Lights when a minor alarm is active.

NI-2 System-Level LEDs

Table 1-13 describes card-level LEDs.


Table 1-13:
LED State Function

Power

Green

The NI-2 is receiving power.

Off

The NI-2 is not receiving power.

Status

Green

No internal faults or problems have been detected on the card.

Off

The card has not booted properly, or a problem was detected that prevents normal operation.

Active

Green

This NI-2 is operating as the active network interface in the chassis (important when redundant NI-2 is supported).

Off

This NI-2 is not active.

NI-2 Card-Level LEDs

Some NI-2 cards have LEDs for fans. Table 1-14 describes the fan LEDs. If your NI-2 has no fan LEDs, use the fan LEDs on the power entry modules.


Table 1-14: NI-2 Fan LEDs
LED State Function

Fan 1

Red

One or more fans in fan tray 1 (the left tray) has failed. Replace fan tray 1.

Off

Fan tray 1 is working normally.

Fan 2

Red

One or more fans in fan tray 2 (the right tray) has failed. Replace fan tray 2.

Off

Fan tray 2 is working normally.

Table 1-15 describes LEDs for the Ethernet port. The LEDs are located on the Ethernet connector.


Table 1-15: NI-2 Ethernet Interface LEDs
LED State Indication

ACT (Ethernet Activity)

Green

Data is running over the Ethernet interface.

Off

Data is not running over the Ethernet interface.

LNK (Ethernet Link Status)

Green

The Ethernet link is operative.

Off

The Ethernet link is inoperative.

Three identical sets of LEDs report the status of the trunk and subtending WAN interfaces. These LED sets are labeled TRNK 1, SBTD 2, and SBTD 3. Table 1-16 maps the LED sets to the port numbers on the I/O module and to the software port numbers. Table 1-17 describes the trunk and subtending interface LEDs.


Table 1-16: DS-3 NI-2 WAN Interface LEDs and Port Numbers
LED Set Port Number on I/O Module Software Port Number

TRNK 1

P1

ATM0/1

SBTD 2

P2

ATM0/2

SBTD 3

P3

ATM0/3
Table 1-17: NI-2 WAN Interface LEDs
LED State Indication

Test

Amber

The software detects that an obtrusive test (loopback) is active on this interface.

Off

The software does not detect any obtrusive test activity.

RX Stat

Amber

The receiver detects a physical layer problem (for example, LOF, LOP, or AIS).

Off

No physical layer problems are detected.

TX Stat

Amber

The far end detects a problem with the local transmitter.

Off

No problems with the local transmitter are detected by the far end.

RCLK

Green

The hardware detects an incoming clock signal.

Off

The hardware detects no incoming clock signals.

1.4.6 DS-3 NI-2 Card Specifications

Table 1-18 lists the physical, electrical, and environmental specifications of the NI-2 card.


Table 1-18: DS-3 NI-2 Specifications
Specification Description

External interfaces

Two DS-3 (44.736-Mbps) coax ports

Connector type

BNC (connectors located on I/O module)

Impedance

75 ohms (nominal)

Line encoding

B3ZS

Framing

Cbit parity, optionally PLCP with M23, otherwise Add Drop Multiplexer (ADM)

Level 2 protocol

ATM

Internal hardware

150-MHz RC64475 CPU
Galileo GT64120 system controller
1Mx32 bootflash
4Mx32 Flash
512 KB boot EPROM

Dimensions

Height: 12.38 in. (31.45 cm)
Depth: 8.50 in. (21.59 cm)
Width: 1.80 in. (4.57 cm)

Weight

3.0 lb (1.36 kg)

Power consumption

50W

1.5 Line Cards

This section describes the 4-port DMT line card (4DMT). Additional line cards will be available in the future.

A Cisco 6260 chassis can accommodate up to 30 line cards. The line cards reside in slots 1 to 9 and slots 11 to 32.

1.5.1 What Is the 4DMT Line Card?

The 4DMT line card provides four discrete multitone (DMT), T1.413 Issue 2-compliant ATUC modems that support ADSL connections over POTS or direct connections. The card supports maximum data rates of 8032 Mbps downstream and 864 Mbps upstream on all four ports simultaneously.

1.5.2 4DMT Card Physical Description

The faceplate of the 4DMT line card (see Figure 1-13) is marked ATUC -1-4DMT. The LEDs on the faceplate are described in the paragraphs that follow.


Figure 1-13: 4DMT Line Card Faceplate

LED Indicators

Table 1-19 describes the LEDs on the ATUC-1-4DMT line card.


Table 1-19: 4DMT Line Card LEDs
LED State Indication

Active

Solid green

At least one port on this card is enabled.

Fast blinking green

Modem microcode download is in progress. See Caution statement below.

Off

This card is booting.

Status

Solid green

No internal faults are detected on this card, and the card has established a connection with the NI-2 card.

Slow blinking green

This line card is trying to establish a connection with the NI-2 card.

Off

This card is booting or it does not have power.

Slow blinking red

The card detects an internal fault or it cannot boot.

ATU-C 1, ATU-C 2,

ATU-C 3, ATU-C 4

Solid green

This port is active and trained with its CPE.

Blinking green

This port is attempting to train with its CPE.

Off

This port is shut down or does not detect a CPE.
Caution Do not remove a 4DMT line card from the chassis if the card's Active LED is blinking, indicating that the card is loading microcode. If a line card is removed while it is loading, there is a slight chance that the card's flash memory might be damaged, making it necessary to replace the card.

1.5.3 4DMT Card Specifications

Table 1-20 lists the specifications of the 4DMT line card.


Table 1-20: 4DMT Line Card Specifications
Specification Description

Standards supported

ITU G.dmt
ITU G.lite
ANSI T1.413 Issue 2

External interfaces

4 (no connectors on card)

Data rates (per port)

Upstream: 32 to 864 kbps
Downstream: 32 to 8032 kbps

Internal hardware

  • 18 MHz AM186ESLV.2 CPU

  • AD20msp918 DMT modem chipset

  • 128 KB SRAM

  • 256K x 16 boot flash

  • 2 kb serial EEPROM

Dimensions

Height: 6.07 in. (15.42 cm)
Depth: 8.50 in. (21.59 cm)
Width: 0.88 in. (2.24 cm)

Weight

0.875 lb (0.4 kg)

Power consumption

22W


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Posted: Tue Aug 8 14:35:53 PDT 2000
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