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Cisco 6130 with NI-2 Hardware Installation Guide
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Preface
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Ch 1: Product Overview
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Ch 2: Preparing for Installation
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Ch 3: Installing a Cisco 6130 with a POTS Splitter Configuration
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Ch 4: Installing a Cisco 6130 Without a POTS Splitter Configuration
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Ch 5: Troubleshooting
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Ch 6: Upgrading and Maintaining the Cisco 6130 System
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Ch 7: Testing Configuration Connections for the Cisco 6130 with NI-2 System
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Appendix A: Technical Specifications
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Appendix B: Cable and Port Mapping Specifications
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Appendix C: Connector and Pinout Specifications
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Index
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Glossary
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Table of Contents
Product OverviewIntroduction to the Cisco 6130 with NI-2 System
Cisco 6130 Chassis Overview
Cisco 6130 Backplane
Cisco 6130 Cards
4xflexi Overview
4xSDSL Overview
DS3/2DS3 NI-2 Card Overview
OC-3c/OC-3c NI-2 Card Overview
Network Clocking Overview
Redundancy Overview
Front Cover
Rear Cover
Fan Tray
Management Software
Product Overview
This chapter provides an overview of the Cisco 6130 with NI-2 system. This chapter contains the following sections:
- Introduction to the Cisco 6130 with NI-2 System
- Cisco 6130 Chassis Overview
- Cisco 6120 POTS Splitter Overview
- Management Software
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Note If you are converting from a Cisco 6130 with NI-1 system to a Cisco 6130 with NI-2 system, refer to the conversion procedures that are available on the World Wide Web at http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/c6130ni2/upgrade/78_10709.htm |
Introduction to the Cisco 6130 with NI-2 System
The Cisco 6130 with NI-2 system is part of the Cisco DSL product family that provides end-to-end service by carrying data between a subscriber's home or office, a telephone central office (CO), and various networks. The Cisco 6130 with NI-2 system sends and receives subscriber data (often Internet service) over existing copper telephone lines, concentrating all traffic onto a single high-speed trunk for transport to the Internet or a corporate intranet. Asymmetric digital subscriber line (ADSL) and symmetrical digital subscriber line (SDSL) customer premises equipment (CPE) devices, which are connected to PCs or routers at the subscriber site, modulate data so that the data can travel over telephone lines to the Cisco 6130 digital subscriber line access multiplexer (DSLAM) at the CO.
The Cisco 6130 with NI-2 system may include the following components:
- Cisco 6130 chassis.
- Cisco 6120 chassis or third-party POTS splitter—A passive plain old telephone service (POTS) splitter.
- Management software—Provisions and manages the Cisco 6130 system.
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- Cisco IOS—A command-line interface (CLI) that is available for network element provisioning.
- Cisco DSL Manager (CDM)—A graphical user interface (GUI) designed to configure and manage the 6xxx series of Cisco IOS software-based DSL access multiplexers (DSLAMs). CDM provides the following areas of network management—fault, configuration, performance, and security. CDM runs with the Cisco Element Manager Framework (EMF); both are installed on Sun workstations.
Cisco EMF is based on an object model in which network elements or modules represent the managed entity. Each object is defined by a class and specific attributes. An object can represent a network element or a more abstract entity such as a link relationship, a network, or a container such as a site, shelf, or region.
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Note See the "Hardware Specifications" section for minimum software and network management release requirements per Cisco 6130 chassis component. |
Features
The Cisco 6130 with NI-2 system includes the following features:
- Supports both ADSL and SDSL
- Carrierless amplitude and phase modulation (CAP) rate adaptive DSL (RADSL), ANSI T1.413 Discrete Multitone (DMT), and G.lite modem support
- Small footprint that terminates up to 128 ADSL/SDSL subscriber lines
- NEBS compliant, 23-inch chassis
- Manageable through Cisco IOS or CDM
- Supports subtending of as many as twelve Cisco 6130 chassis, for a maximum of 1664 subscribers
- Supports the entire range of virtual channel identifier (VCI)/virtual path identifier (VPI) connections; none of the connections are limited by memory
- ATM Forum UNI Versions 3.1 and 4.0 compliant
- Nonblocking ATM switching architecture
- Allows up to four ATM classes of service simultaneously
- Supports NI-2 card cold redundancy and automatic protection switching (APS) link redundancy
Configurations
This guide details the installation steps for the following configurations:
Cisco 6130 with a POTS Splitter Configuration
The Cisco 6130 with a POTS splitter configuration supports up to 128 subscribers through directly connected modems using ADSL technology. To increase subscribership, you can add additional chassis to your system.
This configuration includes the following hardware components:
Figure 1-1 shows the components for a Cisco 6130 chassis with a POTS splitter configuration.
Figure 1-1 Cisco 6130 with a POTS Splitter Configuration
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Note Either a Cisco 6120 or a third-party POTS splitter can be used in a Cisco 6130 with a POTS splitter configuration. A system configuration using quad-port line cards requires a POTS splitter capacity of 128 subscriber ports. Each Cisco 6120 POTS splitter supports up to 64 subscribers. Depending on the POTS splitter selected for your configuration (Cisco 6120 or third-party), the installation of an additional POTS splitter may be necessary. Both a Cisco 6120 and a third-party POTS splitter can be used with the same Cisco 6130 chassis; however, Cisco does not supply the special cables required for this type of POTS configuration. For third-party POTS splitter port mapping and cable pinout specifications, consult the appropriate vendor documentation. |
Cisco 6130 Without a POTS Splitter Configuration
The Cisco 6130 without a POTS splitter configuration supports up to 128 subscribers through directly connected modems using either ADSL or SDSL technology. To increase subscribership, you can add additional chassis to your system.
This configuration includes the following hardware components:
In this configuration, the Cisco 6130 connects directly to the main distribution frame (MDF).
Figure 1-2 shows the components for a Cisco 6130 without a POTS splitter configuration.
Figure 1-2 Cisco 6130 Without a POTS Splitter Configuration
Subtended Network Configuration
A subtended network configuration
- Services and aggregates the data from one or more remotely located Cisco 6130 chassis into a subtending host chassis to take advantage of the data network interface on the subtending host chassis
- Provides additional benefits by reducing the number of ATM edge-switch ports that are required to terminate the chassis
- Supports both a Cisco 6130 with a POTS splitter and a Cisco 6130 without a POTS splitter configuration
- Supports NI-2 card cold redundancy in subtended node chassis if both the subtending host chassis and the subtended node chassis have primary and secondary NI-2 cards installed
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Note An NI-2 card failure on a node in a subtend tree or daisy-chain temporarily interrupts traffic to all subtended node chassis. |
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Tip The term subtending refers to the host chassis, and subtended refers to the downstream chassis in a subtended network. |
A subtended network configuration supports the following features:
- The capacity to run data as fast as the speed of its subtended link. Uplink speed cannot exceed the OC-3c speed.
- Four arbitration priorities, one for each quality of service (QoS) level. The supported QoS service levels are
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- Constant bit rate (CBR) for rate-limited services that require guaranteed bandwidth and bounded delay.
- Variable bit rate real time (VBR-rt) for delay-sensitive voice and video services.
- Variable bit rate nonreal time (VBR-nrt) for high-priority data services.
- Unspecified bit rate (UBR) for low-priority data services.
- Explicit forward congestion indication (EFCI) marking for available bit rate (ABR) service support.
- Guaranteed frame rate (GFR).
- Tree or daisy chain configurations for DS3 subtended Cisco 6130 chassis.
- Daisy chain configurations for OC-3c subtended Cisco 6130 chassis.
- Fair access to the trunk port for each subtended chassis.
- A network trunk port that operates as fast as any subtended link.
- NI-2 card cold redundancy and APS link redundancy. See the "Redundancy Overview" section for more information.
The NI-2 card provides three types of subtended network connections:
The following sections detail the three types of subtending network connections.
Subtended Network Configuration with DS3/2DS3 NI-2 Cards
In a subtended network configuration using DS3/2DS3 NI-2 cards, you can subtend a Cisco 6130 chassis to four tiers, with up to twelve chassis, all connecting through one subtending host chassis to the ATM backbone.
Figure 1-3 shows typical DS3-configured Cisco 6130 systems subtended in a combined subtending tree topology with daisy chain. The subtending host chassis at the top of the subtending tree connects directly to the ATM switch. The middle two Cisco 6130 chassis in the lowest level are daisy chained. TRNK 1 refers to the single network trunk or to the Cisco 6130 subtended network interface. SBTD 2 and SBTD 3 refer to the two Cisco 6130 chassis subtended interfaces. You make network interface connections at the system I/O card that is installed on the Cisco 6130 backplane.
Figure 1-3 Subtended Network Configuration Using DS3/2DS3 NI-2 Cards
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Note You can subtend Cisco 6130 chassis with DS3/2DS3 NI-2 cards in a continuous daisy chain. However, this subtending scheme is not optimal for data throughput for Cisco 6130 chassis that use DS3/2DS3 NI-2 cards. |
Cisco IOS software does not manage the primary Cisco 6130 chassis and all subtended Cisco 6130 chassis as a single large Cisco 6130 with NI-2 system. Each Cisco 6130 supports an independent Cisco IOS processor and Management Information Base (MIB).
Subtended Network Configuration with OC-3c/OC-3c NI-2 Cards
In a subtended network configuration using OC-3c/OC-3c NI-2 cards (SMF or MMF), you can subtend up to twelve OC-3c configured chassis in a daisy chain, all connecting through one subtending host chassis to the ATM backbone (see Figure 1-4).
Figure 1-4 Subtended Network Configuration Using OC-3c/OC-3c NI-2 Cards
Cisco 6130 Chassis Overview
The Cisco 6130 chassis uses a 32-slot multiport line card architecture capable of supporting up to 128 ADSL/SDSL ports that are connected either directly or through a POTS splitter.
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Note For hardware specifications for the Cisco 6130, see the "Cisco 6130 with NI-2 System Specifications" section. |
The following sections detail these Cisco 6130 hardware components:
Cisco 6130 Card Compartment
The card compartment holds all circuitry that relates to the Cisco 6130 with NI-2 system operation. The card compartment contains 38 slots. Table 1-1 describes each card slot assignment for the Cisco 6130.
| Card Slot | Card Assignment |
|---|---|
| 14xSDSLs can only be used in a Cisco 6130 without a POTS splitter configuration.
2Blank faceplates must be installed in all open slots of each chassis. |
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Note You can purchase blank faceplates for empty Cisco 6130 card slots. |
Figure 1-5 identifies the Cisco 6130 card slots. Each slot on a chassis is numbered along the top of the chassis. In this guide, the slot numbers are shown on the cards for easy reference and readability. These slots are referred to in subsequent sections of this chapter and elsewhere in this guide.
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Note Figure 1-5 shows the Cisco 6130 without the required front cover installed. The front cover must be installed while the Cisco 6130 with NI-2 system is in operation. |
Figure 1-5 Cisco 6130 Card Slots
Cisco 6130 Backplane
Figure 1-6 shows the Cisco 6130 backplane.
Figure 1-6 Cisco 6130 Backplane
Table 1-2 describes the connectors and switches on the Cisco 6130 backplane.
| 1HM = hard metric
2RTN = return (ground) |
Cisco 6130 Cards
This section contains the following information about the types of Cisco 6130 cards:
Table 1-3 shows the configurations where the Cisco 6130 line cards can operate.
| Line Card | Cisco 6130 with a POTS Splitter Configuration | Cisco 6130 Without a POTS Splitter Configuration |
|---|---|---|
| 1The 4xflexi feature support for the Cisco 6130 is present in Release 12.1(2)DA or later.
2The 4xSDSL feature support for the Cisco 6130 is present in Release 12.1(2)DA or later. 34xSDSL does not support POTS. |
The Cisco 6130 supports restricted line card intermixing. You can intermix only the 4xflexi (CAP mode) and the 4xflexi (DMT mode) in the same chassis half. The left half of the chassis comprises slots 1 to 8 and 21 to 28; the right half comprises slots 13 to 20 and 31 to 38. The line card intermixing configurations that are supported in a Cisco 6130 chassis are
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Caution Other line card intermixing configurations are not currently supported. Mixing incompatible line cards can cause unpredictable system behavior. |
4xDMT Overview
- Supports four ADSL modem connections.
- Converts ADSL modulation from the line into digital data streams to and from the NI-2 card.
- Negotiates the line rate with the CPE when it trains and bases the rate on line quality and distance.
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Note For line card intermixing information, see the "Cisco 6130 Cards" section 1-12. |
If provisioned, the 4xDMT rate adapts to the maximum bit rate negotiable on the line. The maximum bit rate settings are provisioned in the management software.
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Note For hardware specifications for the 4xDMT, see the "4xDMT Specifications" section A-3. |
The chassis can include up to 32 4xDMTs for a total of 128 ADSL modem connections.
Faceplate Features
The following fixtures are present on the front of the 4xDMT faceplate:
Figure 1-7 shows a close-up of the 4xDMT faceplate.
Figure 1-7 4xDMT Faceplate
Table 1-4 describes the 4xDMT LED indicator functions.
| LED | State | Function |
|---|---|---|
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A digital signal processor firmware download is in progress. |
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4xflexi Overview
- Supports CAP, DMT, or G.lite line encoding.
- Supports four ADSL modem connections.
- Converts ADSL modulation from the line into digital data streams to and from the NI-2 card.
- Negotiates the line rate with the CPE when it trains and bases the rate on line quality and distance.
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Note For line card intermixing information, see the "Cisco 6130 Cards" section 1-12. |
If provisioned, the 4xflexi rate adapts to the maximum bit rate negotiable on the line. The maximum bit rate settings are provisioned in the management software.
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Note For hardware specifications for the 4xflexi, see the "4xflexi Specifications" section A-3. |
The Cisco 6130 system can include up to 32 4xflexis for a total of 128 ADSL modem connections.
Edge Connector Key
The edge connector key, located on the rear of the 4xflexi, connects the 4xflexi to the backplane of the chassis. There are two edge connector keys available for the 4xflexi: one has six notches and one has seven notches. You can use both versions in the Cisco 6130 with NI-2 system. Figure 1-8 shows the edge connector key with seven notches.
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Note The 4xSDSL card also features the edge connector key. |
Figure 1-8 Edge Connector Key
Faceplate Features
The following fixtures are present on the front of the 4xflexi faceplate:
Figure 1-9 shows a close-up of the 4xflexi faceplate.
Figure 1-9 4xflexi Faceplate
Table 1-5 describes the 4xflexi LED indicator functions.
4xSDSL Overview
- Supports 2B1Q line encoding.
- Is designed for use in a Cisco 6130 without a POTS splitter configuration.
- Supports four SDSL modem connections.
- Converts SDSL modulation from the line into digital data streams to and from the NI-2 card.
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Note For line card intermixing information, see the "Cisco 6130 Cards" section 1-12. |
The negotiated bit rate is the lower of the following rates:
- The provisioned bit rate set for the 4xSDSL in the management software
- The assigned bit rate at the CPE
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Note For hardware specifications for the 4xSDSL, see the "4xSDSL Specifications" section A-4. |
The chassis can include up to 32 4xSDSLs for a total of 128 SDSL modems.
Edge Connector Key
The edge connector key, located on the rear of the 4xSDSL, connects the 4xSDSL to the backplane of the chassis. There are two edge connector keys available for the 4xSDSL: one has six notches, and the other has seven notches. You can use both versions in the Cisco 6130 with NI-2 system. Figure 1-8 shows the edge connector key with seven notches.
Faceplate Features
The following fixtures are present on the front of the 4xSDSL faceplate:
Figure 1-10 shows a close-up of the 4xSDSL faceplate.
Figure 1-10 4xSDSL Faceplate
Table 1-6 describes the 4xSDSL LED indicator functions.
DS3/2DS3 NI-2 Card Overview
- Connects to the xTU-C line cards through point-to-point serial data buses on the backplane
- Controls timing and redundancy
- Provides CO facility alarm relay contact interfaces and an alarm cut-off (ACO) button
- Provides visual and audible operating status alerts
- Contains the ATM switch fabric
- Provides the network DS3 WAN trunk interface through BNC connectors located on the system I/O card
- Provides two DS3 subtend interfaces through BNC connectors located on the system I/O card
- Supports the aggregation of up to 12 subtended node chassis that are configured for DS3 operation in a tree topology
- Supports NI-2 card cold redundancy
- Provides Cisco IOS-based ATM Quality of Service (QoS).
The DS3/2DS3 NI-2 card functions are managed by Cisco IOS software. The Cisco IOS software operates and integrates controller, network trunk, and subtending functions from this single card, which occupies slot 10, slot 11, or both in a Cisco 6130 chassis.
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Note For DS3/2DS3 NI-2 card hardware specifications, see the "DS3/2DS3 NI-2 Card Specifications" section on. |
Faceplate Features
Figure 1-11 shows a close-up of the DS3/2DS3 NI-2 card faceplate.
Figure 1-11 DS3/2DS3 NI-2 Card Faceplate
The following fixtures are present on the front of the DS3/2DS3 NI-2 card faceplate, as noted in Figure 1-11:
- Two locking levers with locking tabs.
- An ACO button and a maintenance RESET port located at the top of the faceplate.
- Three interface status LED groups, Trunk 1 (TRNK 1), Subtend 2 (SBTD 2), and Subtend 3 (SBTD 3), located on the left side of the card faceplate. These interface status LED groups monitor the trunk and subtend connections on the system I/O card or I/O module.
Table 1-7 describes the interface status LED group indicators and their functions.
| LED | State | Function |
|---|---|---|
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Cisco IOS detects that an obtrusive test (loopback) is active on this interface. |
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Table 1-8 describes the alarm status LED group indicators and their functions.
- Three operating system interface and internet ports located on the right side of the NI-2 card faceplate.
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- CNSL—An RJ-45 receptacle that provides a serial connection to a system console.
- AUX—An RJ-45 receptacle that provides connection to an auxiliary device (such as a modem) used to remotely configure the system.
- ENET—An RJ-45 10BaseT receptacle that complies with Ethernet standards and that provides connection to a system Ethernet. The ENET interface has two LEDs: ACT to indicate activity status and LNK to indicate link status. Table 1-9 describes the ENET interface LED indicators and their functions.
| LED | State | Function |
|---|---|---|
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When the LED is lit or blinking, the Ethernet interface is active. |
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OC-3c/OC-3c NI-2 Card Overview
- Connects to the xTU-C line cards through point-to-point serial data buses on the backplane
- Controls timing and redundancy
- Provides CO facility alarm relay contact interfaces and an ACO button
- Provides visual and audible operating status alerts
- Contains the ATM switch fabric
- Provides the network OC-3c WAN trunk interface through connectors located on the NI-2 card faceplate. The following two versions of the OC-3c/OC-3c NI-2 card are available to support the WAN trunk interface:
- Provides an OC-3c subtend interface through optical connectors located on the NI-2 card faceplate.
- Supports the aggregation of up to 12 subtended node chassis that are configured for OC-3c operation in a daisy-chain topology
- Supports NI-2 card cold redundancy
- Supports APS link redundancy
- Provides Cisco IOS-based ATM Quality of Service (QoS)
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Note For OC-3c/OC-3c NI-2 card hardware specifications, see the "OC-3c/OC-3c NI-2 Card Specifications" section. |
Faceplate Features
Figure 1-12 shows a close-up of the OC-3c/OC-3c NI-2 card faceplate.
Figure 1-12 OC-3c/OC-3c NI-2 Card Faceplate
Table 1-10 describes the LED group indicators and their functions.
| LED Group | LED | State | Function |
|---|---|---|---|
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Interface status LED (5 in Figure 1-12) |
Cisco IOS detects that an obtrusive test (loopback) is active on this interface. |
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System alarm (8 in Figure 1-12) |
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Card status (9 in Figure 1-12) |
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The NI-2 card is operating as the active NI-2 card in the chassis. |
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Fan alarm (10 in Figure 1-12) |
The fan module or fan tray is not operational and is in alarm mode. |
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ENET interface LED (13 in Figure 1-12) |
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Network Clocking Overview
The NI-2 card receives its network timing signal from any one of the following sources:
- A building integrated timing supply (BITS) clock. When a BITS clock serves as the network timing signal source, the Cisco 6130 chassis receives a clock signal through designated pins on the system I/O card and distributes the signal through the chassis backplane.
- An internal clock.
- A DS3 or OC-3c network trunk interface. An NI-2 card synchronizes with the network timing source and provides a clock reference signal to line cards in the chassis and to subtended node chassis.
The active NI-2 card supplies a redundant pair of clock signals to all cards in the chassis. This same clock reference can be propagated to subtend systems via the trunk and subtended interface ports. This is done by configuring the subtending port of the root system to source the network-derived clock. The trunk port of the subtended system is configured as the network clock source for that chassis. This chain continues down the subtended tree.
Redundancy Overview
Redundancy is available for the Cisco 6130 system. The following forms of redundancy are available:
- NI-2 card cold redundancy, which allows a standby NI-2 card to take over system operations in the event of a complete failure of the active NI-2 card.
- APS link redundancy, which provides recovery from a cut fiber or the failure of an OC-3c optical transmitter or optical receiver interface on an NI-2 card. APS link redundancy is available on OC-3c/2DS3 NI-2 card trunk interfaces and OC-3c/OC-3c NI-2 card trunk and subtend interfaces.
NI-2 Card Cold Redundancy
NI-2 card cold redundancy requires that two NI-2 cards be installed in the chassis. The primary card is installed in slot 10 of the chassis, and the secondary card is installed in slot 11. Either the primary or the secondary NI-2 card can serve as the active NI-2 card. The interface types must be the same for both the primary and secondary NI-2 cards.
In a Cisco 6130 system, NI-2 card cold redundancy is supported by DS3/2DS3, OC-3c/OC-3c SMF, and OC-3c/OC-3c MMF NI-2 cards.
During steady-state operations, one NI-2 card functions as the active unit, and the other functions as the standby unit. The active NI-2 card displays a green ACTIVE LED. In an active state, the NI-2 card
The standby NI-2 card plays a minimal role during steady-state operations. In a standby state, the NI-2 card
- Receives configuration changes from the active NI-2 card (when the cards are configured for synchronization)
- Has no Ethernet, auxiliary port, or console access
- Does not communicate with line cards
- Has no access to the environmental monitoring subsystem
- Generates only APS alarms, which are reported via the active card
For management purposes, the primary and secondary NI-2 cards appear as one element. The cards share one IP address.
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Note For information on NI-2 card cold redundancy switchover conditions, refer to the Upgrading DSLAMs for NI-2 Card and APS Link Redundancy document. |
APS Link Redundancy
APS link redundancy provides recovery from a cut fiber or the failure of an OC-3c optical transmitter or receiver interface on an NI-2 card. In a Cisco 6130 system, APS link redundancy is available on OC-3c/OC-3c NI-2 card trunk and subtend interfaces.
The working link is the fiber connection between the primary NI-2 card installed in slot 10 of the chassis and the ATM switch. The protection link is the fiber connection between the secondary NI-2 card installed in slot 11 of the chassis and the ATM switch. When the fiber or optical ports on the active NI-2 card fail, that card remains active but is able to use the fiber or optical ports on the standby NI-2 card.
APS protocol information is carried over the protection link connected to the secondary NI-2 card in slot 11. The standby NI-2 card continually reports synchronous optical network (SONET) state information to the active NI-2 card.
APS link redundancy is nonrevertive. For example, after a switchover from the working to the protective link occurs, the active NI-2 card will switch back to the working fiber only if manually forced through a CLI command or if a failure condition occurs on the protection link. However, if a failure condition occurs on the protection link while the working link is still in a failed state, a switch back to the working link will not occur.
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Note For information on APS link redundancy switchover conditions, refer to the Upgrading DSLAMs for NI-2 Card and APS Link Redundancy document. |
Redundancy in Subtended Configurations
In Cisco 6130 subtending configurations, NI-2 card redundancy is supported in a DS3 subtend tree or in an OC-3c subtend daisy-chain if both the subtending host chassis and the subtended node chassis have primary and secondary NI-2 cards installed. An NI-2 card failure on a node in a subtend tree or daisy-chain temporarily interrupts traffic to all subtended node chassis.
APS link redundancy is supported on optical interfaces in Cisco 6130 subtending configurations if the subtending host chassis has a secondary (redundant) OC-3c/OC-3c NI-2 card installed.
System I/O Card
- Provides transmit and receive Bayonet-Neill-Concelman (BNC) coaxial cable connections for interfacing with one DS3 network connection and up to two subtended node chassis that use DS3/2DS3 NI-2 cards.
- Provides relays and contact wire-wrap pins for dedicated CO facility operating alarms (DS3 or OC-3c systems) that are operated by Cisco IOS software
- Provides the BITS clock
The system I/O card attaches to the two 2-mm HM card connectors, P3 and P9, on the Cisco 6130 backplane.
Figure 1-13 shows the location of the system I/O card on the chassis backplane.
Figure 1-13 System I/O Card Locations
Figure 1-14 shows a close-up of the system I/O card.
Figure 1-14 System I/O Card
Table 1-11 describes the connectors and headers on the system I/O card.
| 1Each wire-wrap header is connected to a relay contact on the active NI-2 card in the Cisco 6130 chassis through the system I/O card connectors.
2AUD = audible. 3CRIT = critical. 4CO = common. 5NO = normally open. 6NC = normally closed. 7MAJ = major. 8MIN = minimum. 9VIS = visual. 10The ACO button is located on the faceplate of the NI-2 card. This switch turns off the audible alarms that are generated by the system software. 11GND = ground. 12RX_BITS = receive building-integrated timing source. |
An EMI shield is formed by the EMI fence, which is soldered in place on the system I/O card, and the EMI cover (see Figure 1-14). Printed circuit board fuses, relays, and surge protectors are shielded by two clear plastic covers: a safety shield and an ESD shield. The EMI cover and protective shields must be in place during Cisco 6130 with NI-2 system operation.
Front Cover
The Cisco 6130 chassis ships with a front cover that must be installed and in place while the system is in operation, as shown in Figure 1-15.
Figure 1-15 Cisco 6130 Front Cover Installation
Rear Cover
You can order and install an optional rear cover and accessory kit for the Cisco 6130 chassis. The rear cover attaches to the back of the Cisco 6130 chassis and restricts access to the backplane and cable connectors. To keep cables from interfering with the opening of the rear cover, the cables that come down from the top of the rack can be tie wrapped to the cover-mounting brackets.
The rear cover accessory kit contains
Fan Tray
The system requires forced air cooling when you use a Cisco 6130 chassis. Therefore, you must install a fan tray with three fan modules below the chassis and leave 1 rack unit (RU) of space below the fan tray for intake plenum. Figure 1-16 shows the front view of the fan tray.
Figure 1-16 Fan Tray
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Note The fan tray must be bolted into the rack and connected to the chassis. If you are using multiple Cisco 6130 chassis in your configuration, a fan tray must be installed under each chassis. |
An LED is located on the front of each of the three fan modules. If the LED is
- Green—The fan module is operational.
- Not green—The fan module is not operational and the fan tray is in alarm mode. See "Troubleshooting," for corrective action.
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Note For preventive maintenance, see "Upgrading and Maintaining the Cisco 6130 System." |
Figure 1-17 shows the backplane of the fan tray.
Figure 1-17 Fan Tray Backplane
Table 1-12 describes the connectors on the backplane of the fan tray.
Cisco 6120 POTS Splitter Overview
The Cisco 6120 POTS splitter is a device that separates voice frequencies from DSL signals. It is used to allow POTS service to continue over communication lines accessed by DSL equipment such as the Cisco 6130 chassis. POTS frequencies are sent to the voice switch and xDSL frequencies are routed to the ATU-C line cards, depending on the configuration you install. The Cisco 6120 is electrically passive. Therefore, a complete loss of power to the Cisco 6130 with NI-2 system does not affect voice transport to the Public Switched Telephone Network (PSTN).
To colocate voice-switching equipment through the CO MDF, use separate 50-pin Champ connectors to cable to POTS signals. Special cables are required for this connection. Obtain these cables from Cisco, or build the cables according to a standard, accepted cable specification, for example, the Nortel NT-T100 series cable specification. For more information on the required cables, see "Cable and Port Mapping Specifications."
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Note Refer to the appropriate vendor documentation for information on the third-party POTS splitter. |
Cisco 6120 Card Compartment
The card compartment includes 22 slots. Table 1-13 describes each card slot assignment for the Cisco 6120.
| Card Slot | Card Assignment |
|---|---|
| 1Blank faceplates must be installed in all open slots of each chassis. |
|
Note You can purchase blank faceplates for empty Cisco 6120 card slots. |
Figure 1-18 identifies the Cisco 6120 card slots. Each slot on a chassis is numbered along the top of the chassis. In this guide, the slot numbers are shown on the cards for easy reference and readability. These slots are referred to in subsequent sections of this chapter and elsewhere in this guide.
Figure 1-18 Cisco 6120 Card Slots
Cisco 6120 Backplane
Figure 1-19 shows the backplane of the Cisco 6120.
Figure 1-19 Cisco 6120 Backplane
Table 1-14 describes the connectors on the backplane of the Cisco 6120.
Figure 1-20 shows the location of the Cisco 6120 data, voice, and line connections.
Figure 1-20 Cisco 6120 Connections
Cisco 6120 Cards
The DMT POTS card separates ADSL data from the POTS signals.
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Note The Cisco 6130 with a POTS splitter configuration will support the 8 kHz DMT POTS card. |
Figure 1-21 shows the DMT POTS card faceplate.
Figure 1-21 DMT POTS Card Faceplate
Management Software
You can provision and manage the Cisco 6130 with NI-2 system through the following management software:
- Cisco IOS—A CLI that is available for network element provisioning.
- CDM—A GUI designed to configure and manage the 6xxx series of Cisco IOS software-based DSLAMs. CDM provides the following areas of network management—fault, configuration, performance, and security. CDM runs with the Cisco EMF; both are installed on Sun workstations.
Cisco EMF is based on an object model in which network elements or modules represent the managed entity. Each object is defined by a class and specific attributes. An object can represent a network element or a more abstract entity such as a link relationship, a network, or a container such as a site, shelf, or region.
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Note If your network contains multiple Sun workstations, you must dedicate one workstation as the server and all additional workstations as clients. The server should be the repository and distributor of database information from which the clients request information. The client workstations allow multiple users to monitor the managed network. |
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Note See the "Hardware Specifications" section on page A-1 for minimum software and network management release requirements per Cisco 6130 chassis component. |
The supported alarms that are generated by the management software are
- CRITICAL—A critical visual alarm condition is indicated when the CRITICAL LED in the NI-2 card faceplate lights.
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- When a critical alarm occurs, the critical visual and audible alarm relays are activated.
- A critical alarm affects many or all subscribers that are connected to the node (for example, failure of the NI-2 card or the trunk can cause a critical alarm).
- Critical alarms clear after you fix the condition that triggered the alarm.
- Audible alarms are turned off when you press the ACO button on the NI-2 card faceplate.
- MAJOR—A major visual alarm condition is indicated when the MAJOR LED in the NI-2 card faceplate lights.
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- When a major alarm occurs, the major visual and audible alarm relays are also activated.
- Several subscribers that are connected to the node are affected.
- Major alarms clear after you fix the condition that triggered the alarm.
- Audible alarms are turned off when you press the ACO button on the NI-2 card faceplate.
- MINOR—A minor visual alarm condition is indicated when the MINOR LED in the NI-2 card faceplate lights.
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- When a minor alarm occurs, the minor visual and audible alarm relays are also activated.
- A small number of subscribers that are connected to the node are affected.
- Minor alarms clear after you fix the condition that triggered the alarm.
- Audible alarms are turned off when you press the ACO button on the NI-2 card faceplate.
Visual and audible alarm relay contacts can be wired from the Cisco 6130 chassis to CO alarm devices (remote lights or bells) located anywhere within the facility.
The visual and audible alarm relays are located on the system I/O card, but the NI-2 card hardware operates them. The visual alarms clear after you fix the problem that triggered the alarm. The audible alarms can be disabled by pressing the ACO button on the NI-2 card or clearing the alarm in the Cisco IOS software.
For more information on alarms that are generated in the management software, see "Troubleshooting."