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This chapter provides an overview of the Cisco 6100 with NI-1 system. This chapter contains the following sections:
The Cisco 6100 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 6100 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) 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 6100 with NI-1 system includes the following components:
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Note Refer to the current release notes for compatibility among the Cisco 6100 with NI-1 system and ViewRunner management software releases. |
The features of the Cisco 6100 with NI-1 system include the following items:
This guide details the installation steps for the following configurations:
The DOH configuration supports up to 400 subscribers depending on the concentration ratio achieved through the addition of line interface modules (LIMs) to the Cisco 6110. You can dynamically update the concentration in the field by changing the number of LIMs and CAP ATU-C modules in the system.
This configuration includes the following hardware components:
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Warning Systems using a Cisco 6100 chassis must connect to the network through a POTS splitter. |
Figure 1-1 shows the components for a DOH configuration when you are using a Cisco 6100 chassis.
Figure 1-2 shows a sample application of a five-to-one concentration for a DOH configuration of a Cisco 6100 with NI-1 system.
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Note The maximum concentration for a DOH configuration is 6.25:1. |
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 6100 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 6100 Cards" section
The module compartment holds all circuitry that relates to the Cisco 6100 with NI-1 system operation. The module compartment includes 38 slots, and Table 1-1 describes each module slot assignment for the Cisco 6100 chassis.
| Module Slot | Module Assignment |
|---|---|
1 to 8 | CAP ATU-C modules |
9 | DS3 STM (if applicable) |
10 | NI-1 module |
11 | |
12 | System controller module |
13 to 20 | CAP ATU-C modules |
21 to 28 | CAP ATU-C modules |
29 to 30 | Blank faceplates1 |
31 to 38 | CAP ATU-C modules |
| 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 6100 module slots. |
Figure 1-5 identifies the Cisco 6100 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 6100 without the required front cover installed. The front cover must be installed while the Cisco 6100 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). The physical pool A and physical pool B callouts in Figure 1-5 apply only in a DOH configuration. |
Figure 1-6 shows the Cisco 6100 backplane. This backplane has been in the field for some time and supports a DOH configuration.
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Note The STU-C modules cannot be used with a Cisco 6100 backplane. |
Table 1-2 describes the connectors and switches on the Cisco 6100 backplane.
| Identifier | Name | Description | ||
|---|---|---|---|---|
J45 | Modem pool A out | A 68-pin SCSI2 connector used to connect to the Cisco 6110 for ATU-C pool A. | ||
J46 | Modem pool B out | A 68-pin SCSI2 connector used to connect to the Cisco 6110 for ATU-C pool B. | ||
J47 | Cisco 6110 controller out | A 26-pin SCSI connector used to connect to the Cisco 6110 controller in connectors on the Cisco 6110. | ||
J48 | A 96-pin DIN connector. | |||
J39, J40, J41, J42, J43, J44 | --- | Use for Direct Connect configurations only. | ||
P9, P3 | Two 2-mm HM1 modular connectors (male on the Cisco 6100 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. | |||
P19 | A 4-position terminal block header providing optional connections between chassis ground and logic ground, or between chassis ground and -48 VDC return. | |||
P16 | xDSL protection | A 2 x 4 shorting jumper. Allows you to designate one or two backup (redundant) ATU-C modules in all configurations involving ATU-C, 1:1 concentration (no modem pooling).
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P18 | Analog test input | A 2-position header for connecting external ADSL test equipment. | ||
SW1, SW2 | ADSL slot configuration switches | Two DIP switches used to configure slots 20 and 38 as redundant ATU-C slots (1:1 configuration only). |
| 1HM = hard metric |
This section contains the following information about the types of Cisco 6100 modules:
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Tips Refer to the Cisco 6100 Series with NI-1 User Guide for component block diagrams. |
The dual-port CAP ATU-C module
If provisioned, the dual-port CAP 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 CAP ATU-C modules for a total of 64 ADSL modem connections.
Figure 1-7 shows a close-up of the dual-port CAP ATU-C module faceplate.
Table 1-3 describes the dual-port CAP 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 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 1-4 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 1-5 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 1-8 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 1-6 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 1-7 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 1-9 shows a close-up of the DS3 NI-1 module faceplate.
Table 1-8 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 6100. The system controller module contains all software required to perform the following:
The system controller module also manages the alarm contacts on the Cisco 6100 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 1-10 shows a close-up of the system controller module faceplate.
Table 1-9 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 1-12 shows a close-up of the DS3 STM faceplate.
Table 1-10 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 6100 backplane
Figure 1-13 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 1-14 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 1-15 shows the DS3 BNC connectors and DS3 jumpers on the DS3 subtending I/O card.
The Cisco 6100 ships with a front cover that must be installed and in place while the system is in operation, as shown in Figure 1-16.
You can order and install an optional rear cover for the back of the Cisco 6100. The rear cover attaches to the back of the Cisco 6100 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 Cisco 6110
Each LIM can support four subscriber lines for a total of 80 subscriber lines per chassis. Electronically, the Cisco 6100 with NI-1 system can support up to five Cisco 6110 chassis, for a total of 400 lines.
Data is routed into the Cisco 6110 through two 68-pin connectors (J25 and J26). Data is routed out of the Cisco 6110 through two 68-pin connectors (J27 and J28). Each successive Cisco 6110 is cabled to the previous Cisco 6110 in a chained fashion using the 68-pin connectors.
The module compartment includes 22 slots, and Table 1-11 describes each module slot assignment for the Cisco 6110.
| Module Slot | Module Assignment |
|---|---|
1 to 10 | LIMs only |
11 | LIM controller module |
12 | |
13 to 22 | LIMs 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 6110 module slots. |
Figure 1-17 identifies the Cisco 6110 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 A Cisco 6110 can be used only in a DOH configuration. The physical pool A and physical pool B callouts in Figure 1-17 apply only in a DOH configuration. |
Figure 1-18 shows the Cisco 6110 backplane.
Table 1-12 describes the connectors on the backplane of the Cisco 6110.
This section contains the following information about the types of Cisco 6110 modules:
The LIMs provide intraoffice protection, DOH detection, line concentration, and switching circuitry.
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Note Make sure each network element has protection from electrical problems due to major electrical events (for example, lightning). |
Each LIM is equipped with
Use LIMs when it is necessary to oversubscribe (or concentrate) lines to CAP ATU-C ports in the Cisco 6100.
LIMs are associated with physical modem pools A and B in the Cisco 6100.
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Note In the Cisco 6100 with NI-1 system operation, there is a distinction between physical and logical pools. For more information, refer to the ViewRunner for Windows Digital Off-Hook Provisioning and Operation Guide or the ViewRunner for HP OpenView Digital Off-Hook Provisioning and Operation Guide. |
Figure 1-19 shows a close-up of the LIM faceplate.
Table 1-13 describes the LIM LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green blinking | The self-test is in progress. |
LINE 1 | Green blinking | The LIM port is detecting DOH but is not configured with a subscriber or the configured subscriber is locked. |
LINE 2 | Green blinking | The LIM port is detecting DOH but is not configured with a subscriber or the configured subscriber is locked. |
LINE 3 | Green blinking | The LIM port is detecting DOH but is not configured with a subscriber or the configured subscriber is locked. |
LINE 4 | Green blinking | The LIM port is detecting DOH but is not configured with a subscriber or the configured subscriber is locked. |
The LIM controller module
Figure 1-20 shows a close-up of the LIM controller module faceplate.
Table 1-14 describes the LIM controller module LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green blinking | The self-test is in progress. |
ACTIVE | Green solid | The module is activated (not on standby). |
In a DOH configuration, the Cisco 6120 supports a CAP POTS module.
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Warning Systems using a Cisco 6100 chassis must connect to the network through a POTS splitter. |
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 6100 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."
The module compartment includes 22 slots. Table 1-15 describes each module slot assignment for the Cisco 6120.
| Module Slot | Module Assignment |
|---|---|
1 to 10 | CAP1 POTS modules only |
11 | |
12 | Screwed-down faceplate |
13 to 22 | CAP1 POTS modules only |
| 1Only CAP POTS modules can be used in a DOH 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 6120 module slots. |
Figure 1-21 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.
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Note The physical pool A and physical pool B callouts in Figure 1-21 apply only in a DOH configuration. |
Figure 1-22 shows the backplane of the Cisco 6120.
Table 1-16 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 6100.
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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 1-23 shows the location of the Cisco 6120 data, voice, and line connections.
A DOH configuration supports an 8 kHz CAP POTS module.
Figure 1-24 shows the POTS module faceplates.
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Note The DMT POTS module is not used in a DOH configuration. |
You can provision and manage the Cisco 6100 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 6100 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: Fri Jun 9 07:19:18 PDT 2000
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