Table of Contents

Cisco 6100 and Cisco 6130 Module Compartment
Cisco 6100 and Cisco 6130 Backplane
Cisco 6100 and Cisco 6130 Modules

Dual-Port CAP ATU-C Module Overview
Dual-Port DMT-2 ATU-C Module Overview
Quad-Port Flexi ATU-C Module Overview
Quad-Port STU-C Module Overview
NI-1 Module Overview

OC-3c Network Connection Information
OC-3c NI-1 Module Overview
DS3 Network Connection Information
DS3 NI-1 Module Overview

System Controller Module Overview

Statistics Management
System Controller Module Software
System Controller Module LED Indicators
Craft Interface Connectors

DS3 STM Overview

Cisco 6100 and Cisco 6130 Cards

System I/O Card
DS3 Subtending I/O Card

Front Cover
Rear Cover
Fan Tray

Fan Tray Backplane

Thermal Guard

Cisco 6100 and Cisco 6130 Chassis Overview

There are two different chassis available with the Cisco 6100 Series with NI-1 system:

• Cisco 6130---Supports Release 2.4.0 and later

• Cisco 6100---Supports Release 3.x.x and earlier

Table 3-1 shows the configurations in which each of the chassis can be used.

Table 3-1: Cisco 6100 Series with NI-1 System Chassis and Configuration Compatibility

Chassis	Direct Connect with a POTS Splitter Configuration		Direct Connect Without a POTS Splitter Configuration	DOH Configuration
	With a Cisco 6120	With a Siecor POTS Splitter1
Cisco 61302	Yes	Yes	Yes	No
Cisco 61003	Yes	Yes	No	Yes

1The Siecor ADSL POTS Splitter Rack-Mount Shelf is compatible with the Cisco 6100 and Cisco 6130 chassis. The Siecor POTS splitter provides secondary lightning protection from tip to ring. However, secondary lightning protection is not provided from tip to ground or ring to ground. 2The Cisco 6130 chassis feature support is present in Release 2.4.0 or later. 3Systems with a Cisco 6100 installed must connect to the network through a POTS splitter (Cisco 6120 or Siecor POTS splitter). Therefore, a Cisco 6100 cannot support a Direct Connect without a POTS splitter configuration.

• Cisco 6100 and Cisco 6130 Module Compartment

• Cisco 6100 and Cisco 6130 Backplane

• Cisco 6100 and Cisco 6130 Modules

• Cisco 6100 and Cisco 6130 Cards

• Front Cover

• Rear Cover

• Fan Tray

• Thermal Guard

Cisco 6100 and Cisco 6130 Module Compartment

The module compartment holds all circuitry that relates to the Cisco 6100 Series with NI-1 system operation. The module compartment includes 38 slots.

Table 3-2 describes each module slot assignment for the Cisco 6130 chassis in a Direct Connect configuration.

Table 3-2: Cisco 6130 Module Slot Assignments in a Direct Connect configuration

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	Blank faceplate2
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.

Table 3-3 describes each module slot assignment for the Cisco 6100 chassis in a Direct Connect configuration.

Table 3-3: Cisco 6100 Module Slot Assignments in a Direct Connect Configuration

Module Slot	Module Assignment
1 to 8	CAP, DMT-2, or flexi ATU-C modules
9	DS3 STM (if applicable)
10	NI-1 module
11	Blank faceplate1
12	System controller module
13 to 20	CAP, DMT-2, or flexi ATU-C modules
21 to 28	CAP, DMT-2, or flexi ATU-C modules
29 to 30	Blank faceplates1
31 to 38	CAP, DMT-2, or flexi ATU-C modules

1Blank faceplates must be installed in all open slots of each chassis.

Table 3-4 describes each module slot assignment for the Cisco 6100 chassis in a DOH configuration.

Table 3-4: Cisco 6100 Module Slot Assignments in a DOH Configuration

Module Slot	Module Assignment
1 to 8	CAP ATU-C modules
9	DS3 STM (if applicable)
10	NI-1 module
11	Blank faceplate1
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 6100/6130 module slots.

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Figure 3-1 identifies the Cisco 6100/6130 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 3-1 shows the Cisco 6100/6130 without the required front cover installed. The front cover must be installed while the Cisco 6100 Series with NI-1 system is in operation.

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Figure 3-1:

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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 3-1 apply only in a DOH configuration.

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Cisco 6100 and Cisco 6130 Backplane

Figure 3-2 shows the Cisco 6100 backplane. This backplane has been in the field for some time and supports

• A Direct Connect with a POTS splitter configuration (with CAP ATU-C, DMT-2 ATU-C, or flexi ATU-C modules)

• A DOH configuration (with CAP ATU-C modules)

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Note The STU-C modules cannot be used with a Cisco 6100 backplane.

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Figure 3-2:

Table 3-5 describes the connectors and switches on the Cisco 6100 backplane.

Figure 3-3 shows the Cisco 6130 backplane. This backplane began shipping with Release 2.4.0. The Cisco 6130 supports

• A Direct Connect with a POTS splitter configuration

• A Direct Connect without a POTS splitter configuration

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Note To determine if you have a Cisco 6130, locate the Cisco 6130 label on the upper right corner of either the chassis or the front cover of the chassis. Another way to determine if you have a Cisco 6130 is to locate the J49 connector on the backplane. The Cisco 6100 backplane does not have this connector.

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Figure 3-3:

Table 3-6 describes the connectors and switches on the Cisco 6130 backplane.

Cisco 6100 and Cisco 6130 Modules

This section contains the following information about the types of Cisco 6100/6130 modules:

• Dual-Port CAP ATU-C Module Overview

• Dual-Port DMT-2 ATU-C Module Overview

• Quad-Port Flexi ATU-C Module Overview

• Quad-Port STU-C Module Overview

• NI-1 Module Overview

• System Controller Module Overview

• DS3 STM Overview

Table 3-7 shows the configurations where the Cisco 6100/6130 modules can operate.

Table 3-7: Cisco 6100 Series Module and Configuration Compatibility

Module	Direct Connect with a POTS Splitter Configuration		Direct Connect Without a POTS Splitter Configuration		DOH Configuration1		Siecor POTS Splitter2
	Cisco 6130	Cisco 6100	Cisco 6130	Cisco 6100	Cisco 6130	Cisco 6100
Dual-port CAP ATU-C	No	Yes	No	No	No	Yes	Yes
Dual-port DMT-2 ATU-C3,4	Yes	Yes	Yes	No	No	No	Yes
Quad-port flexi ATU-C5	Yes	Yes	Yes	No	No	No	Yes
Quad-port STU-C6,7	No	No	Yes	No	No	No	No

1The DOH configuration feature is not supported in Release 2.4.x with a Cisco 6100 or a Cisco 6130. 2The Siecor ADSL POTS splitter is compatible with a Cisco 6100 or a Cisco 6130 in a Direct Connect with a POTS splitter configuration. 3The DMT-2 ATU-C module feature support is not available for the Cisco 6100 chassis prior to Release 2.4.1. 4If you install DMT-2 ATU-C modules in the Cisco 6100/6130, you must install all DMT POTS modules in the POTS splitter chassis. 5The flexi ATU-C module feature support is present in Release 3.0.0 or later. 6Symmetrical digital subscriber line (SDSL) does not support POTS. 7The STU-C module feature support is present in Release 2.4.1 or later.

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Tips See "Block Diagrams" for component block diagrams.

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The Cisco 6100/6130 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 3-8 details the module intermixing configurations in a Cisco 6100/6130 chassis.

Note You can only intermix the flexi ATU-C (CAP) and the flexi ATU-C (DMT-2) modules in the same chassis half.

Table 3-8: Cisco 6100/6130 Module Intermixing

Module Combination	Cisco 6100 Chassis	Cisco 6130 Chassis
Dual-port DMT-2 ATU-C and quad-port STU-C1	Not supported	Supported
Dual-port DMT-2 ATU-C and dual-port CAP ATU-C	Supported	Not supported
Dual-port CAP ATU-C and quad-port flexi ATU-C (DMT mode)	Supported	Not supported
Dual-port CAP ATU-C and quad-port flexi ATU-C (CAP mode)	Supported	Not supported
Dual-port DMT-2 and quad-port flexi ATU-C (DMT mode)	Supported	Supported
Dual-port DMT-2 and quad-port flexi ATU-C (CAP mode)	Supported	Supported
Dual-port CAP ATU-C and quad-port STU-C1	Not supported	Not supported
Quad-port flexi ATU-C (CAP mode) and quad-port flexi ATU-C (DMT mode)	Supported	Supported
Quad-port flexi ATU-C (CAP mode) and quad-port STU-C1	Not supported	Supported
Quad-port flexi ATU-C (DMT mode) and quad-port STU-C1	Not supported	Supported

1An STU-C module is supported only in a Direct Connect without a POTS splitter configuration.

Dual-Port CAP ATU-C Module Overview

The dual-port CAP ATU-C module

• Supports two ADSL modem connections.

• Converts ADSL modulation from the line into digital data streams to and from the network interface module.

• Negotiates the line rate with the CPE when it trains and bases the rate on line quality and distance.

Figure 3-4 shows a close-up of the dual-port CAP ATU-C module faceplate.

Table 3-9 describes the dual-port CAP ATU-C module LED indicator functions.

Dual-Port DMT-2 ATU-C Module Overview

The dual-port DMT-2 ATU-C module:

• Is T1.413 Issue 2 compliant.

• Supports two ADSL modem connections.

• Converts ADSL modulation from the line into digital data streams to and from the NI-1 module.

• Negotiates the line rate with the CPE when it trains and bases the rate on line quality and distance.

Figure 3-5 shows a close-up of the dual-port DMT-2 ATU-C module faceplate.

Table 3-10 describes the dual-port DMT-2 ATU-C module LED indicator functions.

Quad-Port Flexi ATU-C Module Overview

The quad-port flexi ATU-C module

• 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-1 module.

• Negotiates the line rate with the CPE when it trains and bases the rate on line quality and distance.

Figure 3-6 shows a close-up of the quad-port flexi ATU-C module faceplate.

Table 3-11 describes the quad-port flexi ATU-C module LED indicator functions.

Table 3-11: Quad-Port Flexi ATU-C Module LED Indicators

LED	State	Function
STATUS	Green slow blinking Green fast blinking Green solid Red Off	The self-test is in progress. The image download is in progress. The status is OK. The self-test or module has failed. The ATU-C module has a power failure.
ACTIVE	Green solid Off	The module is activated. The module is not in service.
CAP	Green solid Off	The module is in CAP mode. The module is not in CAP mode.
DMT	Green solid Off	The module is in DMT mode. The module is not in DMT mode.
G.LITE	Green solid Off	The module is in G.lite mode. The module is not in G.lite mode.
A1	Green solid Green blinking Off	Modem 1 is trained. Training is in progress for modem 1. Modem 1 is idle.
A2	Green solid Green blinking Off	Modem 2 is trained. Training is in progress for modem 2. Modem 2 is idle.
A3	Green solid Green blinking Off	Modem 3 is trained. Training is in progress for modem 3. Modem 3 is idle.
A4	Green solid Green blinking Off	Modem 4 is trained. Training is in progress for modem 4. Modem 4 is idle.

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 3-7 shows a close-up of the edge connector key.

Quad-Port STU-C Module Overview

The Cisco 6100 Series with NI-1 system quad-port STU-C module

• Supports 2B1Q line encoding.

• Is designed for use in a Direct Connect without a POTS splitter configuration.

• Supports four SDSL modem connections.

• Transports ATM data at rates of up to 1168 kbps over a single twisted pair of copper wire.

• Converts SDSL modulation from the line into digital data streams to and from the NI-1 module.

Figure 3-8 shows a close-up of the quad-port STU-C module faceplate.

Table 3-12 describes the quad-port STU-C module LED indicator functions.

Table 3-12: Quad-Port STU-C Module LED Indicators

LED	State	Function
STATUS	Green slow blinking Green fast blinking Green solid Red Off	The self-test is in progress. The image download is in progress. The status is OK. The self-test or module has failed. The ATU-C module has a power failure.
ACTIVE	Green solid Off	The module is activated. The module is not in service.
STU-C 1	Green solid Green blinking Off	Modem 1 is trained. Training is in progress for modem 1. Modem 1 is idle.
STU-C 2	Green solid Green blinking Off	Modem 2 is trained. Training is in progress for modem 2. Modem 2 is idle.
STU-C 3	Green solid Green blinking Off	Modem 3 is trained. Training is in progress for modem 3. Modem 3 is idle.
STU-C 4	Green solid Green blinking Off	Modem 4 is trained. Training is in progress for modem 4. Modem 4 is idle.

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 3-9) or a locking tab.

NI-1 Module Overview

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:

• A high-speed OC-3c optical ATM interface supporting single-mode fiber (SMF) intermediate range

• A high-speed OC-3c optical ATM interface supporting multi-mode fiber (MMF) short range

• A DS3 ATM interface

OC-3c Network Connection Information

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 3-13 shows the electro-optical characteristics of the single-mode 155 MB ATM transceiver.

For single-mode ATM/SONET/SDH transceivers, the receiver minimum optical input power is -31 dBm (average), and the receiver maximum optical input power is -8 dBm (average).

Table 3-14 shows the electro-optical characteristics of the multimode OC-3c transceiver.

OC-3c NI-1 Module Overview

Figure 3-10 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 3-15 describe the OC-3c NI-1 module LED indicator functions.

DS3 Network Connection Information

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:

• PLCP cell mapping enabled

• Cell payload scrambling enabled

• C-bit parity enabled

• Header error correction (HEC) disabled

• HEC calculation coset function enabled

• Cells with invalid HECs and unassigned cells are filtered from the cell stream

Table 3-16 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.

DS3 NI-1 Module Overview

Figure 3-11 shows a close-up of the DS3 NI-1 module faceplate.

Table 3-17 describes the DS3 NI-1 module LED indicator functions.

System Controller Module Overview

The system controller module is the central processing and control system for the main access Cisco 6100/6130. The system controller module contains all software required to perform the following:

The system controller module also manages the alarm contacts on the Cisco 6100/6130 backplane for critical, major, and minor alarms.

Statistics Management

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.

System Controller Module Software

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.

System Controller Module LED Indicators

Figure 3-12 shows a close-up of the system controller module faceplate.

Table 3-18 describes the system controller module LED indicator functions.

Table 3-18: System Controller Module LED Indicators

LED	State	Function
STATUS	Green blinking Green solid Red Off	The self-test is in progress. The status is OK. The self-test or module has failed. The system controller module has failed.
ACTIVE	Green solid Off	The module is active. The module is in standby mode.
ALARM	Red Solid	The module is in alarm.

Craft Interface Connectors

The Cisco 6100 Series 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:

• Baud rate---38.4 kbps

• Data bits---8

• Parity---none

• Stop bits---1

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 Series 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 Series 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.

DS3 STM Overview

The DS3 STM manages subscribers that are sent from a subtended Cisco 6100/6130 chassis and installed in slot 9 of a subtending host chassis.

Figure 3-14 shows a close-up of the DS3 STM faceplate.

Table 3-19 describes the DS3 STM LED indicator functions.

Table 3-19: DS3 STM LED Indicators

LED	State	Function
STATUS	Green blinking Green solid Red	The self-test is in progress. The status is OK. The self-test or module has failed.
ACTIVE	Green solid Off	The module is active. The module is in standby mode.
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.

Cisco 6100 and Cisco 6130 Cards

There are two daughter cards that attach to the Cisco 6100/6130 backplane

Figure 3-15 shows the location of the system I/O card and the DS3 subtending I/O card on the chassis backplane.

System I/O Card

The system I/O card provides the following connections:

• The 10BaseT Ethernet/LAN connector for the system management interface to a PC or UNIX system and external clock wire-wrap pins.

• Coaxial connections for DS3 cabling when a DS3 NI-1 module is installed. If a DS3 NI-1 module is not present, the coaxial connections are not used.

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 3-16 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.

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Note There are two DS3 jumpers on the system I/O card. The DS3 jumpers connect the BNC shield to the chassis ground. Both the receive DS3 jumper (P2) and the transmit DS3 jumper (P1) are installed on the system I/O card when it ships.

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DS3 Subtending I/O Card

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 3-17 shows the DS3 BNC connectors and DS3 jumpers on the DS3 subtending I/O card.

Front Cover

The Cisco 6100/6130 ships with a front cover that must be installed and in place while the system is in operation, as shown in Figure 3-18.

Rear Cover

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.

Fan Tray

The system requires forced air cooling when you use a

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. Figure 3-19 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 6100/6130 chassis in your configuration, a fan tray must be installed under each chassis.

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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.

Fan Tray Backplane

Figure 3-20 shows the backplane of the fan tray.

Table 3-20 describes the connectors on the backplane of the fan tray.

Thermal Guard

A thermal guard is required when using the Cisco 6100 chassis with dual-port DMT-2 ATU-C or quad-port flexi ATU-C modules. A thermal guard is installed on top of the Cisco 6100 chassis.

Posted: Wed May 17 11:01:41 PDT 2000
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