Table of Contents

Overview
Components and Features

Chassis

Designated-Purpose Slots
General-Purpose Slots
Backplane

Service Modules

Bank Power Supply, Alternating Current
Main Control Card, Integrated
Bank Ring Generator

Line Interface Modules

FXS/16
RPOTS/16
RUVG/8
ISDN-BRI/8
DSX1/8
T1-2-V35
DSX3/CHNL
OC3c-UNI
STSX1/CHNL
MSDSL-2W
DS3 ATM

Product Overview

This chapter describes the Cisco 6705 integrated access device chassis, and the service modules and line interface modules supported by the Cisco 6705 integrated access device. This chapter includes the following sections:

• Overview

• Components and Features:

  • Chassis

  • Service Modules

  • Line Interface Modules

Overview

The Cisco 6705 integrated access device a high-density, scalable platform-supporting up to 56 POTS circuits, 32 DS1s or 8 T1s. Designed for customer premise and multi-dwelling unit (MDU) applications, it simultaneously manages voice and data circuit-switched and packet-based voice and data traffic. The unit supports fully utilized narrowband and wideband line interface modules, and u to four subutilized broadband line interface modules.

Multiport-per-slot architecture supports fundamental time division mutliplexing (TDM) and asynchronous transfer mode (ATM) technologies. The unit is compliant with relevant NEBS, ANSI, and Telcordia network element standards and provides the following functionality for customer premises equipment (CPE) and remote terminal (RT) applications:

• Digital loop carrier (DLC)

• Integrated access

Components and Features

Chassis

The Cisco 6705 integrated access device contains a single shelf chassis that holds the following:

• Designated-Purpose Slots

• General-Purpose Slots

• Backplane

Designated-Purpose Slots

The first two slots at the left of the Cisco 6705 chassis are exclusively designed to support the following service modules:

• The slot labeled BPS exclusively supports the bank power supply (BPS-AC) module, which provides power to the MCC-INT module and passes -48 VDC to the line interface modules.

• The slot labeled MCC exclusively supports the main control card (MCC-INT) module, which provides centralized processing, synchronization, and some switching functions. The MCC module provides Ethernet 10BaseT connectivity.

General-Purpose Slots

The Cisco 6705 chassis provides five numbered general-purpose slots designed to support the following line interface service modules:

• General-purpose slot number 1, to the immediate right of the MCC slot, supports only the RPOTS/16, FXS/16, and RUVG/8 line interface modules, and the BRG service modules.

• Slots 2 through 5 support all line interface modules and the BRG service module.

Backplane

The backplane provides the basic architecture and interconnectivity of the Cisco 6705 integrated access device. The backplane also offers three connectors for subscriber cabling. For more information about cabling, see Chapter , "Cabling and Wiring."

Service Modules

Service modules for the Cisco 6705 integrated access device are hot swappable. They can be inserted into (or removed from) the Cisco 6705 chassis with or without power applied to the system without incurring damage.

The following service modules are available for the Cisco 6705 integrated access device:

• Bank Power Supply, Alternating Current

• Main Control Card, Integrated

• Bank Ring Generator

Bank Power Supply, Alternating Current

The bank power supply, alternating current (BPS-AC) module supplies power to the MCC-INT module and passes -48 VDC to the line interface modules. The BPS-AC derives the -48 VDC from an internal AC/DC converter that accepts 120 VAC and converts it to the -48 VDC needed for the telephony equipment. In cases where the local AC source fails, the BPS-AC passes the -48 VDC from an optional battery backup to the chassis. The BPS-AC provides trickle-charging for the optional battery backup box and overcurrent protection for the Cisco 6705 chassis.

The LEDs on the BPS-AC module indicate chassis and module status. (See Table 1-1.)

Connectors

The BPS-AC module provides a three-prong AC connector for use with a standard AC power cord.

---

Caution   During battery backup operation, when the battery voltage drops below -42.5 VDC, the Cisco 6705 will shut down.

---

Main Control Card, Integrated

The main control card-integrated (MCC-INT) module with stratum 4 clock performs centralized processing, synchronization, and switching functions for the Cisco 6705. The MCC-INT can also derive timing from an inbound DS3-CHNL module.

The MCC-INT module supports the following functions:

• TDM and ATM interfaces with the line interface modules

• Alarm processing and management

• TDM and ATM centralized switching functions

Available Slots

The MCC-INT module must be placed in the designated-purpose slot labeled MCC.

LEDs

The LEDs on the MCC-INT module indicate module and embedded software status. (See Table 1-2.)

Bank Ring Generator

The bank ring generator (BRG) module provides the appropriate ring voltage and synchronization signal to the chassis backplane for use by the RPOTS/16 and RUVG/8 analog line interface modules. The BRG uses sine wave ringing and ring cadence following. The ring capacity is 20 REN (20 Watts), operating at 85 Vrms ring voltage and 20 Hz ringing frequency.

The REN number indicates the quantity of ringers which may be connected to a single telephone line and still ring. The total of all RENs of the telephones connected to the one line must not exceed the value 5, or some or all of the ringers may not operate.

Available Slots

The BRG module can be placed in general-purpose slots 1 through 5.

LEDs

The LEDs on the BRG module indicate module status. (See Table 1-3.)

Alternately blinking FAIL and ACTV LEDs indicate that a slot has been provisioned in EMS for another type of module.

Connectors

The BRG module does not have any external connectors or interfaces.

---

Note   For information on cabling requirements for all line interface modules, refer to Chapter , "Cabling and Wiring."

---

Line Interface Modules

Line interface modules for the Cisco 6705 integrated access device are hot swappable. They can be inserted into (or removed from) the Cisco 6705 chassis with or without power applied to the system without incurring damage. Line interface modules can be inserted in any order.

The following line interface modules are available for the Cisco 6700 series:

• FXS/16

• RPOTS/16

• RUVG/8

• ISDN-BRI/8

• DSX1/8

• T1-2-V35

• DSX3/CHNL

• OC3c-UNI

• STSX1/CHNL

• MSDSL-2W

FXS/16

Each FXS/16 line interface module provides 16 ports of FXS or short-drop POTS/FXS service. The module also provides integrated ring generation and line test functionality.

Available Slots

The FXS/16 module can be placed in general-purpose slots 1 through 5.

LEDs

The LEDs on the FXS/16 module indicate module status. (See Table 1-4.)

Use the backplane connectors to connect the FXS/16 module. See Chapter , "Cabling and Wiring," for subscriber cabling information.

RPOTS/16

Each RPOTS/16 line interface module provides 16 circuits of remote POTS service.

The LEDs on the RPOTS/16 module indicate module status. (See Table 1-5.)

Use the backplane connectors to connect the RPOTS/16 module. See Chapter , "Cabling and Wiring," for subscriber cabling information.

RUVG/8

Each RUVG/8 line interface module provides eight circuits of remote UVG service. Each circuit can be provisioned for POTS, E/UVG, and FXS.

The LEDs on the RUVG/8 module indicate module status. (See Table 1-6.)

Use the backplane connectors to connect the RUVG/8 module. See Chapter , "Cabling and Wiring," for subscriber cabling information.

ISDN-BRI/8

Each ISDN-BRI/8 line interface module provides eight U-interface ports of basic rate ISDN service at 144 kbps.

The LEDs on the ISDN-BRI/8 module indicate module and line status. (See Table 1-7.)

Use the backplane connectors to connect the ISDN-BRI/8 module. See Chapter , "Cabling and Wiring," for subscriber cabling information.

DSX1/8

The DSX1/8 is a DSX1 interface with eight ports.

The LEDs on the DSX1/8 module indicate module and line status. (See Table 1-8.)

Use the backplane connectors to connect the DSX1/8 module. See Chapter , "Cabling and Wiring," for subscriber cabling information.

T1-2-V35

Each T1-2-V35 line interface module provides two ports that can each be provisioned for DSX1 or T1 line buildouts (LBO). The card also features a 26-pin V.35 port on the face plate of the module.

The LEDs on the T1-2-V35 module indicate module and line status. (See Table 1-9.)

DSX3/CHNL

Each DSX3/CHNL line interface module provides DS3 service through a coaxial interface. Channelized 3:1:0 cross-connects are supported.

---

Note   A DSX3/CHNL module installed in a Cisco 6705 can only support 10 DS1s.

---

Figure 1-11: DSX3/CHNL Front Panel

Available Slots

The DSX3/CHNL module can be placed in slots 2 through 5.

LEDs

The LEDs on the DSX3/CHNL module indicate module and line status. (See Table 1-10.)

OC3c-UNI

The OC3c-UNI line interface module provides an interface for point-to-point OC3c-UNI data transfer at 30 Mbps.

---

Note   An OC3c-UNI module installed in a Cisco 6705 integrated access device chassis has a maximum throughput of 30 Mbps. When creating a cross-connect to an OC3c-UNI module installed in a Cisco 6732, maximum throughput must be restricted to 30 Mbps to avoid data loss.

---

Figure 1-12: OC3c-UNI Front Panel

Available Slots

The OC3c-UNI module can be placed in slots 2 through 5.

---

Note   A maximum of two OC3c-UNI modules can be placed in the Cisco 6705 chassis.

---

LEDs

The LEDs on the OC3c-UNI module indicate module and line status. (See Table 1-11.)

STSX1/CHNL

Each STSX1/CHNL line interface module provides an STS-1 interface supporting channelized DS1/DS0 service. Channelized 3:1:0 cross-connects are supported.

---

Note   A DSX3/CHNL module installed in a Cisco 6705 can only support 10 DS1s.

---

Figure 1-13: STSX1/CHNL Front Panel

Available Slots

The STSX1/CHNL module can be placed in slots 2 through 5.

LEDs

The LEDs on the STSX1/CHNL module indicate module and line status. (See Table 1-12.)

MSDSL-2W

Each MSDSL-2W provides 2-wire MSDSL service to four subscriber ports at transfer rates up to 2.3 Mbps.

The LEDs on the MSDSL-2W module indicate module and line status. (See Table 1-13.)

Use the backplane connectors to connect the MSDSL-2W module. See Chapter , "Cabling and Wiring," for subscriber cabling information.

DS3 ATM

The DS3 ATM module supports a single DS3 line. It enables support for ATM layer switching, cell processing, and network traffic management for broadband ATM traffic and ATM-based subscriber linecards at the DS3 rate (44.736 mbps).

Available Slots

The MSDSL-2W module can be placed in general-purpose slots 2 through 5.

LEDs

The LEDs on the MSDSL-2W module indicate module and line status. (See Table 1-13.)

Use the backplane connectors to connect the MSDSL-2W module. See Chapter , "Cabling and Wiring," for subscriber cabling information.

Posted: Tue Feb 13 08:15:46 PST 2001
All contents are Copyright © 1992--2001 Cisco Systems, Inc. All rights reserved.
Important Notices and Privacy Statement.