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This chapter provides an overview of the Cisco 6130 with NI-1 system. This chapter contains the following sections:
The Cisco 6130 with NI-1 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-1 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 6100 Series digital subscriber line access multiplexer (DSLAM) at the CO.
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Note For detailed information on the various CPE devices in the Cisco DSL product family, see the "Related Documentation" section. |
The Cisco 6130 with NI-1 system includes the following components:
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Note Refer to the current release notes for compatibility among the Cisco 6130 with NI-1 system and ViewRunner management software releases. |
The features of the Cisco 6130 with NI-1 system include the following items:
This guide details the installation steps for the following configurations:
The Direct Connect with a POTS splitter configuration supports 64 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 Direct Connect with a POTS splitter configuration when you are using a Cisco 6130 chassis.
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Note Either a Cisco 6120 or a Siecor POTS splitter can be used in a Direct Connect with a POTS splitter configuration. Both chassis cannot be used. In a Direct Connect with a POTS splitter configuration using a Cisco 6120 and quad-port flexi ATU-C modules, it is necessary to install an additional Cisco 6120 chassis. The additional Cisco 6120 chassis expands the system to accommodate 128 ports. |
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Caution Mixing incompatible modules can cause unpredictable system behavior. See Table 1-4 for intermixing compatibility. |
The Direct Connect without a POTS splitter configuration supports 64 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 Direct Connect without a POTS splitter configuration.
A subtended network configuration
The term subtending refers to the host chassis, and subtended refers to the downstream chassis in a subtended network.
Figure 1-3 shows a subtending tree. The subtending host chassis at the top of the subtending tree connects directly to the ATM switch. You can have two subtended node chassis connected to the first subtending host chassis located at the top of the subtending tree. One or both of these subtended node chassis can also become a subtending host chassis and therefore have one or two subtended node chassis connected to them.
You can subtend a Cisco 6130 chassis to three tiers, with up to six chassis, all connecting through one subtending host chassis to the ATM backbone (see Figure 1-3).
In Figure 1-4, the DS3 subtend host module (STM) is installed in slot 9 of the subtending host chassis. An NI-1 module is located in slot 10. If you have
Figure 1-4 shows a subtending host chassis and a subtended node chassis with corresponding slot number assignments.
All chassis have a system I/O card installed on the backplane. In addition to the system I/O card, a DS3 subtending I/O card is installed on the subtending host chassis backplane. For more information on the system I/O card and DS3 subtending I/O card, see the "Cisco 6130 Cards" section.
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Note Secondary line protection is provided through the Cisco 6130 chassis modules. |
The module compartment holds all circuitry that relates to the Cisco 6130 with NI-1 system operation. The module compartment includes 38 slots. Table 1-1 describes each module slot assignment for the Cisco 6130 chassis.
| Module Slot | Module Assignment |
|---|---|
1 to 8 | DMT-2 ATU-C, flexi ATU-C, or STU-C1 modules |
9 | DS3 STM (if applicable) |
10 | NI-1 module |
11 | |
12 | System controller module |
13 to 20 | DMT-2 ATU-C, flexi ATU-C, or STU-C1 modules |
21 to 28 | DMT-2 ATU-C, flexi ATU-C, or STU-C1 modules |
29 to 30 | Blank faceplates2 |
31 to 38 | DMT-2 ATU-C, flexi ATU-C, or STU-C1 modules |
| 1STU-C modules can only be used in a Direct Connect 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 module slots. |
Figure 1-5 identifies the Cisco 6130 module slots. Each slot on a chassis is numbered along the top of the chassis. In this guide, the slot numbers are shown on the modules 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-1 system is in operation. |
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Note There are primary and secondary slots for the system controller module, NI-1 module, and DS3 STM. The secondary slots are not used at this time (slots 11, 29, and 30). |
Figure 1-6 shows the Cisco 6130 backplane. This backplane began shipping with Release 2.4.0. The Cisco 6130 supports
Table 1-2 describes the connectors and switches on the Cisco 6130 backplane.
| Identifier | Name | Description | ||
|---|---|---|---|---|
J45 | --- | Not in use. | ||
J46 | --- | Not in use. | ||
J47 | --- | Not in use. | ||
J48 | A 96-pin DIN connector. | |||
J49 | --- | For future use. | ||
J39, J40, J41, J42, J43, J44 | Data | |||
P9, P3 | Two 2-mm HM1 modular connectors (male on the Cisco 6130 and female on the system I/O card) used to connect the system I/O card. | |||
P13 | A terminal block connector with four dual-power connections (-48V_A, -48V_B, and two -48RTN). | |||
P14, P15, P17 | Three 8-position headers providing connections for E2A, visual, and audible alarm contacts.
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P18 | Analog test input | A 2-position header for connecting external ADSL test equipment. |
| 1HM = hard metric |
This section contains the following information about the types of Cisco 6130 modules:
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Tips Refer to the Cisco 6100 Series with NI-1 User Guide for component block diagrams. |
Table 1-3 shows the configurations where the Cisco 6130 modules can operate.
| Module | Direct Connect with a POTS Splitter Configuration | Direct Connect Without a POTS Splitter Configuration | Siecor POTS Splitter1 |
|---|---|---|---|
Dual-port CAP ATU-C | No | No | Yes |
Dual-port DMT-2 ATU-C | Yes | Yes | Yes |
Quad-port flexi ATU-C2 | Yes | Yes | Yes |
No | Yes | No |
| 1The Siecor ADSL POTS splitter is compatible with a Cisco 6130 in a Direct Connect with a POTS splitter configuration. 2The flexi ATU-C module feature support is present in Release 3.0.0 or later. 3SDSL does not support POTS. 4The STU-C module feature support is present in Release 2.4.1 or later. |
The Cisco 6130 chassis supports module intermixing. However, the quad-port STU-C modules must be segregated in either the left or right half of the chassis (left half comprises slots 1 to 8 and 21 to 28; right half comprises slots 13 to 20 and 31 to 38 ). The STU-C modules may not be intermixed with other module types within the same chassis half. Table 1-4 details the module intermixing configurations in a Cisco 6130 chassis.
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Note You can only intermix the flexi ATU-C (CAP) and the flexi ATU-C (DMT-2) modules in the same chassis half. |
| Module Combination | Cisco 6130 Chassis |
|---|---|
Supported | |
Not supported | |
Not supported | |
Not supported | |
Supported | |
Supported | |
Not supported | |
Quad-port flexi ATU-C (CAP mode) and quad-port flexi ATU-C (DMT mode) | Supported |
Supported | |
Supported |
| 1An STU-C module is supported only in a Direct Connect without a POTS splitter configuration. |
The dual-port DMT-2 ATU-C module:
If provisioned, the dual-port DMT-2 ATU-C module rate adapts to the maximum bit rate negotiable on the line. The maximum bit rate settings are provisioned in the ViewRunner management software.
The chassis can include up to 32 dual-port DMT-2 ATU-C modules for a total of 64 ADSL modem connections.
Figure 1-7 shows a close-up of the dual-port DMT-2 ATU-C module faceplate.
Table 1-5 describes the dual-port DMT-2 ATU-C module LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green slow blinking | The self-test is in progress. |
ACTIVE | Green solid | The module is activated. |
ATU-C 1 | Green solid | Modem 1 is trained. |
ATU-C 2 | Green solid | Modem 2 is trained. |
The quad-port flexi ATU-C module
If provisioned, the quad-port flexi ATU-C module rate adapts to the maximum bit rate negotiable on the line. The maximum bit rate settings are provisioned in the ViewRunner management software.
The Cisco 6130 chassis can include up to 32 quad-port flex ATU-C modules for a total of 128 ADSL modem connections.
Figure 1-8 shows a close-up of the quad-port flexi ATU-C module faceplate.
Table 1-6 describes the quad-port flexi ATU-C module LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green slow blinking | The self-test is in progress. |
ACTIVE | Green solid | The module is activated. |
CAP | Green solid | The module is in CAP mode. |
DMT | Green solid | The module is in DMT mode. |
G.LITE | Green solid | The module is in G.lite mode. |
A1 | Green solid | Modem 1 is trained. |
A2 | Green solid | Modem 2 is trained. |
A3 | Green solid | Modem 3 is trained. |
A4 | Green solid | Modem 4 is trained. |
The quad-port flexi ATU-C module can be ordered with or without an edge connector key. Either version of the flexi ATU-C module can be installed in the Cisco 6130 with NI-1 system. Figure 1-9 shows a close-up of the edge connector key.
The Cisco 6130 with NI-1 system quad-port STU-C module
The negotiated bit rate is the lower of the following rates:
The chassis can include up to 32 quad-port STU-C modules for a total of 128 SDSL modems.
Figure 1-10 shows a close-up of the quad-port STU-C module faceplate.
Table 1-7 describes the quad-port STU-C module LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green slow blinking | The self-test is in progress. |
ACTIVE | Green solid | The module is activated. |
STU-C 1 | Green solid | Modem 1 is trained. |
STU-C 2 | Green solid | Modem 2 is trained. |
STU-C 3 | Green solid | Modem 3 is trained. |
STU-C 4 | Green solid | Modem 4 is trained. |
There is an earlier version of the quad-port STU-C module (STUC-4-2B1Q-DIR-1=) that is still being used. The earlier version can be used only in the Cisco 6130 with NI-1 system and does not have an edge connector key (see Figure 1-11) or a locking tab.
The NI-1 module provides a high-speed connection for aggregated data traffic from the xTU-C modules. The NI-1 module
The NI-1 module provides three types of network connections:
The reach for the SMF interface is specified as 35 km if you use Siecor 0.20 dB per kilometer, 9 micrometers optical cable. Table 1-8 shows the electro-optical characteristics of the single-mode 155 MB ATM transceiver.
| Transmitter | Units | Minimum | Typical | Maximum |
|---|---|---|---|---|
Output power (average) | dBm | -15.0 | -11.0 | -8.0 |
Center wave length | nm | 1260 | --- | 1360 |
Table 1-9 shows the electro-optical characteristics of the multimode OC-3c transceiver.
| Transmitter | Units | Minimum | Typical | Maximum |
|---|---|---|---|---|
Output power (average) | dBm | -17.0 | -15.0 | -12.0 |
Center wave length | nm | 800 | --- | 900 |
Figure 1-12 shows a close-up of the OC-3c NI-1 module faceplates. The faceplates are labeled differently for OC-3c SMF and OC-3c MMF.
Table 1-10 describe the OC-3c NI-1 module LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green slow blinking | The self-test is in progress. |
ACTIVE | Green solid | The module is active. |
The DS3 NI-1 module receives its transmit timing from a local oscillator with 20 parts per million (ppm) accuracy. The line build-out defaults to 0 to 225 feet.
The default configuration for the DS3 NI-1 module is as follows:
Table 1-11 shows reach comparisons for a Lucent 735A (thin coaxial cable), a Lucent 734A (thick coaxial cable), and a Belden RG-59/U (thick coaxial cable). An HP Cerjac was used to monitor the return loss. A minimum signal level of 360 millivolt (mV) was monitored at the HP Cerjac, and the cable length was then measured. The Lucent 734A thick coaxial cable performed slightly better than the Belden RG-59/U cable. The reach numbers represent the maximum distance to a DSX-3 cross connect.
| Cable Type | Line Build Out | Haul Length | Reach |
|---|---|---|---|
735A | 1 | Short haul | 175 feet |
734A | 1 | Short haul | 325 feet |
RG-59/U | 1 | Short haul | 250 feet |
Figure 1-13 shows a close-up of the DS3 NI-1 module faceplate.
Table 1-12 describes the DS3 NI-1 module LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green slow blinking | The self-test is in progress. |
ACTIVE | Green solid | The module is active. |
The system controller module is the central processing and control system for the main access Cisco 6130. The system controller module contains all software required to perform the following:
The system controller module also manages the alarm contacts on the Cisco 6130 backplane for critical, major, and minor alarms.
The system controller module continuously compiles statistics on xTU-C module use and reports these statistics over an SNMP-based Ethernet port.
A local EIA/TIA-232 craft port located on the faceplate of the system controller module.
Management ports, alarms, and SNMP traps alert the service provider to alarm conditions.
For more information on statistics management, refer to the ViewRunner for Windows Direct Connect Provisioning Guide or the ViewRunner for HP OpenView Direct Connect Provisioning Guide.
The software on the system controller module is stored in Flash memory and can be updated dynamically through the use of TFTP over the 10BaseT Ethernet/LAN port or through an in-band management channel. All provisioning information is stored in local nonvolatile memory. If a power loss occurs, this information is retained by the system.
Figure 1-14 shows a close-up of the system controller module faceplate.
Table 1-13 describes the system controller module LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green blinking | The self-test is in progress. |
ACTIVE | Green solid | The module is active. |
ALARM | Red Solid | The module is in alarm. |
The Cisco 6100 with NI-1 system also supports a local craft interface for laptop or VT-100 terminal usage. The local craft interface is supported through a 9-pin D-sub serial connector on the faceplate of the system controller module. The port access settings are as follows:
This connection is used to establish a serial interface for the command line interface (CLI) which allows up to seven people, through one serial session and six Telnet sessions, to manage a Cisco 6100 with NI-1 system. The CLI has a series of commands allowing the user to view status and configuration details of any entity within a Cisco 6100 with NI-1 system and to modify certain system attributes. Currently, only the Show Alarms commands in ViewRunner are supported. Refer to the ViewRunner documentation for more information about the CLI.
Figure 1-16 shows a close-up of the DS3 STM faceplate.
Table 1-14 describes the DS3 STM LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green blinking | The self-test is in progress. |
ACTIVE | Green solid | The module is active. |
| PORT 1 | ||
LOS | Green solid Red | Port 1 has a proper DS3 signal to the far end connection. Port 1 has detected a loss of signal condition from the subtended chassis. |
LOF | Green solid Red | Port 1 has DS3 frame sync to the far end connection. Port 1 has detected a loss of frame condition from the subtended chassis. |
OCD | Green solid Red | Port 1 has achieved cell delineation from or to the far end connection. Port 1 has detected a loss of cell delineation condition from the subtended chassis. |
FERF | Green solid Red | The far end connection to port 1 is receiving signals. Port 1 has detected a receiver failure in the far end equipment. |
| PORT 2 | ||
LOS | Green solid Red | Port 2 has a proper DS3 signal to the far end connection. Port 2 has detected a lost of signal condition from the subtended chassis. |
LOF | Green solid Red | Port 2 has DS3 frame sync to the far end connection. Port 2 has detected a loss of frame condition from the subtended chassis. |
OCD | Green solid Red | Port 2 has achieved cell delineation from or to the far end connection. Port 2 has detected a loss of cell delineation condition from the subtended chassis. |
FERF | Green solid Red | The far end connection to port 2 is receiving signals. Port 2 has detected a receiver failure in the far end equipment. |
There are two daughter cards that attach to the Cisco 6130 backplane
Figure 1-17 shows the location of the system I/O card and the DS3 subtending I/O card on the chassis backplane.
The system I/O card provides the following connections:
On the system I/O card, the receive DS3 Bayonet-Neill-Concelman (BNC) connector is designated as J4, and the transmit DS3 BNC connector is designated as J3. Figure 1-18 shows the two system I/O cards that are currently in use. In the figure, the system I/O card on the left is the current version (product number 6100-SYS-IO-3=). The system I/O card on the right is an earlier version that is still being used.
The DS3 subtending I/O card has two sets of DS3 75-ohm coaxial DS3 BNC connectors. Each set consists of a transmit and a receive connector. There are four jumpers that are already installed on the DS3 subtending I/O card. Use the jumpers to connect the DS3 BNC shield to the chassis ground. Figure 1-19 shows the DS3 BNC connectors and DS3 jumpers on the DS3 subtending I/O card.
The Cisco 6130 ships with a front cover that must be installed and in place while the system is in operation, as shown in Figure 1-20.
You can order and install an optional rear cover for the back of the Cisco 6130. The rear cover attaches to the back of the Cisco 6130 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
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 1-21 shows the front view of the 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. |
There is an LED on the front each of the three fan modules. If the LED is
For preventive maintenance, refer to the Cisco 6100 Series System Fan Tray Configuration Notes.
Figure 1-22 shows the backplane of the fan tray.
Table 1-15 describes the connectors on the backplane of the fan tray.
| Identifier | Name | Description | ||
|---|---|---|---|---|
P1 | Power | Terminal block connector with four dual power input connections (-48VA, -48VB, and two -48VB RTN). | ||
P2 | Alarm | A two-position header providing connections for fan tray alarm contacts.
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J1 | --- | For future use. |
POTS frequencies are sent to the voice switch while xDSL frequencies are routed to the ATU-C modules, depending on the configuration you install. The Cisco 6120 is electrically passive. Therefore, a complete loss of power to the Cisco 6130 with NI-1 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 For information on the Siecor ADSL POTS Splitter Rack-Mount Shelf, refer to the Siecor ADSL POTS Splitter Rack-Mount Shelf Central Office Version document. |
The module compartment includes 22 slots. Table 1-16 describes each module slot assignment for the Cisco 6120.
| Module Slot | Module Assignment |
|---|---|
1 to 10 | DMT POTS modules only |
11 | |
12 | Screwed-down faceplate |
13 to 22 | DMT POTS modules only |
| 1Blank faceplates must be installed in all open slots of each chassis. |
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Note You can purchase blank faceplates for empty Cisco 6120 module slots. |
Figure 1-23 identifies the Cisco 6120 module slots. Each slot on a chassis is numbered along the top of the chassis. In this guide, the slot numbers are shown on the modules for easy reference and readability. These slots are referred to in subsequent sections of this chapter and elsewhere in this guide.
Figure 1-24 shows the backplane of the Cisco 6120.
Table 1-17 describes the connectors on the backplane of the Cisco 6120.
| Identifier | Connector | Description | ||
|---|---|---|---|---|
J1 through J6 | Data | Six 50-position Champ connectors for ADSL data connections to the Cisco 6110 or to the Cisco 6130.
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J7 through J10 | Voice | Four 50-position Champ connectors for connection to external voice terminating equipment. | ||
J11 through J14 | Line | Four 50-position Champ connectors for incoming xDSL voice/data connections. | ||
J36 | --- | One 9-pin D-sub connector reserved for future use. |
The two additional data connections (J1 and J2) are used only in a Direct Connect configuration. Figure 1-25 shows the location of the Cisco 6120 data, voice, and line connections.
The DMT POTS module separates ADSL data from the POTS signals.
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Note When installing a Cisco 6130 chassis in a Direct Connect with a POTS splitter configuration, only the 8 kHz DMT POTS module is supported. |
Figure 1-26 shows the DMT POTS module faceplate.
You can provision and manage the Cisco 6130 with NI-1 system through the following ViewRunner management software:
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Note Refer to the current release notes for compatibility among the Cisco 6130 with NI-1 system and ViewRunner management software releases. |
For more information on the ViewRunner management software, refer to any of the following related documents:
Posted: Wed May 17 11:23:13 PDT 2000
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