Line-by-Line Solutions

In addition to integrated access, the SpectraComm family supports independent line-by-line T3 broadband, T1/FT1 wideband, DDS/GDS narrowband and analog solutions.

The SpectraComm MS-2 shelves come in twelve models to support most central office and customer premises configurations for line-by-line access.

Line-by-Line Cards

SpectraComm 553 (SC 553) DSU Card

SC 553 Key Features:

·  Network Managed T1/FT1 CSU/DSU

·  Supports N x 56/64 kbps to 1.536 Mbps payload

·  In-band SNMP management via various diagnostic control channels

·  Optional DSX-1 cascade "drop and insert" port

·  Local or remote management

·  Auto configuration with SCM

The SpectraComm 553 is a rackmounted single channel T1/FT1 CSU/DSU offering highly cost-effective, direct line-by-line access to the T1 network. Occupying a single slot in the SpectraComm Shelf, the SC 553 supports T1 and FT1 services from 56 kbps to a full 1.544 Mbps. Network interface rates may be selected as multiples of either 56 kbps or 64 kbps to the full 1.536 Mbps payload. Connection to data terminal equipment is equally flexible, with support for a V.35 or an optional TIA/EIA-530/422 interface, plus an optional DSX-1 drop and insert interface. A flash memory architecture facilitates downline loading of future firmware upgrades.

SpectraComm 800 T3 (SC 800T3) DSU Card

SC 800T3 Key Features:

·  Full T3 (44.2 Mbps)

·  Full SNMP management via SCM

·  HSSI interface

·  Supports high speed router applications

·  Local or remote management

·  Supports SC 2000 Craft Port

·  Auto configuration with SCM

The SpectraComm 800T3 is an SNMP-managed T3 DSU supporting clear channel communications at 44.2 Mbps. This compact data set interfaces to the host computer using an industry standard HSSI connector. Two BNC connectors provide the DS3 connections to the network. Flash memory enables future firmware upgrades

SpectraComm 521A (SC 521A) DSU Card

SC 521A Key Features:

·  Network Managed DDS/GDS DSU

·  Supports all DDS data rates — 2.4 - 19.2 kbps, 56/64 kbps, 64 kbps clear channel

·  Extends SNMP management for remote SC 521A

·  Extended dynamic range

·  Supports line measurements

·  Interoperates with all standard DDS DSUs

·  Data Rate Adaption

·  Supports SC 2000 Craft Port

·  Auto configuration with SCM

The SpectraComm 521A is an all-rate, rackmounted, SNMP-managed DSU supporting a direct interface to standard and generic digital service networks. The SC 521A operates at line rates of 2.4 to 64 kbps in point-to-point and 2.4 to 56 kbps in multipoint applications.

SpectraComm 500A (SC 500A) DSU Card

SC 500A Key Features:

·  Supports all DDS data rates — 2.4 - 19.2 kbps, 56/64 kbps, 64 kbps clear channel

·  Automatic data rate selection simplifies service upgrades

·  Powerful diagnostic testing capabilities for rapid fault isolation and system restoral

·  Extended dynamic range for the best performance possible

The SpectraComm 500A is a non-network managed universal rate data service unit (DSU) for central site locations in digital service networks. It is fully compatible with GDC's DeskTop (DT) 500A, designed primarily for remote office locations, while supporting all standard subrates and both 56 kbps and 64 kbps (clear channel) high speed rates.

SpectraComm 202 (SC 202) Modem

SC 202 Key Features:

·  Custom VLSI technology yields superior performance and reliability

·  Advanced design ensures ease of installation and use

·  Simple option selection without complicated programming

·  Optional SNMP Management

·  Auto configuration with SCM

The SpectraComm 202 is a Bell 202-compatible modem for operation on 2-wire and 4-wire private lines, supporting point-to-point or multipoint operations with data rates up to 1800 bps. Custom Very Large Scale Integration (VLSI) provides the modem with advanced features while maintaining the best price performance available. The SC 202's options are set using a switch bank, the SCM card or SNMP Management.

SpectraComm Dual V.34 Modem Card

SpectraComm Dual V.34 Key Features:

·  Two high performance, high reliability V.34 modems on one card

·  Enhanced Security Features:

  - RADIUS Security

  - Patented Steadfast Security^®

  - Password, dial back and roving dial back security

·  MNP-10 cellular compatibility

·  Speeds up to 33.6 kbps with throughput of up to 128 kbps

The SpectraComm Dual V.34 delivers two high performance, high reliability V.34 modems on a single SpectraComm card for a total of 32 modems per 7-inch shelf. It is capable of transmitting synchronous or asynchronous data at speeds up to 33.6 kbps over dial-up or 2-wire private lines. State-of-the-art V.34 trellis code modulation along with powerful V.42/V.42 bis error correction and compression is the secret of the Dual V.34's superior performance. With advanced data compression techniques, it can achieve an effective throughput of up to 64 kbps in synchronous and 128 kbps in asynchronous applications.

SpectraComm V.F 28.8 / 33.6 Modem Card

SpectraComm V.F 28.8 / 33.6 Key Features:

·  Flash Memory for remote downline loading

·  Enhanced Security Features:

  - RADIUS Security

  - Patented Steadfast Security^®

  - Password, dial back and roving dial back security

·  Speeds up to 33.6 kbps with up to 128 kbps throughput

·  Dial Back up with ADR model

The SpectraComm V.F 28.8 / 33.6 is a high-performance, high reliability V.34 modem. It operates over the switched network, 2-wire leased lines, or, when equipped with the ADR (Auto Dial Restoral) option, as a 4-wire private line modem with automatic dial restoral. A member of GDC's family of high speed V.34 access products, it transmits synchronous or asynchronous data at speeds up to 33.6 kbps. With advanced compression techniques, it can achieve an effective throughput of up to 64 kbps in synchronous and 128 kbps in asynchronous applications. A choice of V.35 or TIA/EIA-530 interfaces eliminates the need for external interface converters when migrating to high speed applications.

The SpectraComm V.F 28.8 / 33.6 is specifically designed for businesses requiring a high degree of reliability in their data connections. State-of-the-art trellis code V.34 modulation along with powerful V.42/V.42 bis error correction and compression features ensures superior performance.

SpectraComm V.34 Dial Back Up

Key SC V.34 DBU Features:

·  Auto Dialing: TIA/EIA 602

NEBS Testing in progress

·  TIA/EIA-232 Interface

·  Same features as the SC V.F 28.8 / 33.6 Modem

The SpectraComm Dial Back-up Unit (SC V.34 DBU) provides dial back-up and dial restoral for the SpectraComm family. This mission critical functionality is mandatory for many applications.

SpectraComm V.34 4-port

The SpectraComm V.34 4-port is a combination of hardware and software features that allow the SC V.F 28.8 / 33.6 platform to act as a four port switch. This configuration allows a more cost-effective solution that allows one dial in line to access up to four different craft ports for the multiple port Out-of-Band Management (OBM) applications. The SC V.34 4-port provides four TIA/EIA-561 DTE interfaces. This is a security feature that requires the remote user to enter a modem or RADIUS password. When the remote user is authenticated, port one through four can be selected.

Introduction | Shelves and Enclosures | Integrated Access Solutions | Line-by-Line Solutions | Management and Security | SpectraComm Modems and CSU/DSUs At A Glance | General Specifications | Integrated Access Specifications | Line-by-Line Specifications | Modem Specifications | Product Literature

Integrated Access Solutions

The SpectraComm 5000 Series (SC 5000) serves as a central connection point to the network, providing high capacity wideband access to full and fractional T1 services. The SC 5000 consolidates multiple serial data streams into a single T1 high-speed stream for delivery to the network. As a result, users who currently require multiple digital or analog access lines can consolidate their bandwidth requirements over one or more T1 links, greatly reducing monthly access charges.

The SC 5000 supports a broad array of access technologies, including ISDN PRI, V.34 digital services, subrate and full rate DDS, and full or fractional T1.

Consolidation

Integrating your access channel grooming by means of the SC 5000 system permits the use of an economical high capacity T1 to replace up to 24 line-by-line terminations.

The basis of the SC 5000 system is the MS-2 shelf, SpectraComm Manager (SCM) and the SC 5001. The SCM provides the management and configuration interface and the SC 5001 Line Terminating Unit (LTU) terminates the T1 and provides a DSX-1 "cascade port" interface and a back plane interface for emulator cards. A 16-slot SpectraComm MS-2 Shelf supports up to four SC 5001 LTUs and up to 72 Data Ports.

System, Element and Routing Redundancy

A means of protection known as "diverse routing" permits redundancy at the carrier T1 and FT1 levels. When this method is used, the application deploys two SC 5001 LTUs, each terminating T1 services from separate paths, ensuring route diversity. In the event of a T1 failure, the network manager reconfigures all bandwidth assigned from the primary LTU to the backup LTU, utilizing the alternate T1's route. Remote data sets attached to alternate WAN ports are then activated, re-establishing complete data flow.

Integrated Access Cards

SpectraComm Manager (SCM)

SCM Key Features:

·  Provides SNMP management of local and remote network elements

·  Supports direct Ethernet LAN attachment (10BaseT, 10Base2)

·  Provides a modem port for dial back up

·  Extends SNMP management to legacy GDC products

·  RADIUS Security

The SCM is the shelf controller and network management interface to all SpectraComm access elements. It allows TCP/IP-based centralized management by acting as the SNMP agent for the chassis and as the management interface to multiple network elements, providing a cost-effective and comprehensive solution.

The SCM provides access to the entire network for data set configuration, alarms, performance monitoring, diagnostic testing, and restoral. One SCM and its corresponding IP address can control up to 31 network elements in a high density SpectraComm Shelf. Remote companion units across the network from corresponding SpectraComm rackmount units can also be controlled by the same SCM.

SpectraComm 5001 (SC 5001) LTU

SC 5001 Key Features:

·  T1 channel distribution to individual SpectraComm DSEs

·  Up to 24 individual channels per LTU

·  Drop and Insert Port (DSX-1 Interface)

·  Full 1.536 Mbps "payload"

·  Supports a mixture of analog and digital applications

·  Support dial-up and private line services

Each SpectraComm 5001 incorporates a powerful intelligent CSU (channel service unit), supporting D4 and ESF framing as well as AMI and B8ZS line coding. The SC 5001 LTU provides flexible, network-managed access to T1 and fractional T1 services. Each LTU supports a single T1 line for network interconnection and a DSX-1 cascade port for "drop and insert" applications.

Up to four independent SpectraComm 5000 subsystems (multiple DSEs with their own LTU for T1 connection) can co-exist in a single shelf configuration. Each LTU distributes bandwidth over the following interfaces: Network T1, drop and insert DSX-1, and the local backplane busses found in the SpectraComm shelf. The LTU divides the T1 payload for each logical interface and configures channels in single or bundled fashion.

SpectraComm 5553 (SC 5553) DSE

SC 5553 Key Features:

·  Support for fractional (N x 56/64 kbps) T1 channels from 56 kbps to 1.536 Mbps

·  Extends SNMP management for remote NMS 553s

The SpectraComm 5553 delivers N x 64/56 to full T1 service functions over a Fractional T1 line, providing channels to the SC 5001 LTU. The SC 5553 also extends SNMP management to legacy GDC products.

SpectraComm 5520 (SC 5520) DSE

SC 5520 Key Features:

·  Network Managed DDS/GDS DSU

NEBS Testing in progress

·  Supports all DDS data rates — 2.4-19.2 kbps, 56/64 kbps, 64 kbps clear channel

·  Compatible with full OCU-DP functions (located at CO)

·  Interoperates with standard DDS DSUs

·  SNMP management for remote SC 521A

·  Supports Data Rate Adaption

GDC's SpectraComm 5520 delivers 2.4 to 64 K data over standard DDS and clear channel services. The SC 5520 supplies independent channels to the SpectraComm integrated access system. The network-managed SC 5520 DSE serves as a master for both point-to-point and multipoint networks, enabling users to mix and match different circuit topologies in the same chassis. The SC 5520 is fully interoperable with legacy GDC managed data sets and extends its SNMP management to them.

SpectraComm 5034 (SC 5034) DSE

Key SC 5034 Features:

·  Two high performance V.34 modems per card

·  Supports both analog (up to 33.6 kbps) and Digital (64 kbps) calls

·  Effective throughput of 128 kbps

·  Enhanced Security Features:

  - Patented Steadfast Security^®

  - Password, dial back and roving dial back security

·  Auto-detection of analog and digital calls

·  Supports caller ID (with PRI)

The SpectraComm 5034 DSE communicates with remote V.34 analog modems up to 33.6 kbps over dial-up or 2-wire private lines. It incorporates the digital equivalent of two V.34 modems, which can function as one 128 kbps or two 64 kbps ISDN terminal adapters utilizing two separate DS0 time slots of a T1/PRI circuit. In addition, the SC 5034 supports advanced compression techniques for analog connections that achieve an effective throughput of 128 kbps asynchronous.

SpectraComm 5506 OCU-DP (SC 5506) & SpectraComm 5516 DSO-DP (SC 5516)

SC 5506 and SC 5516 Key Features:

·  High Density Intra-Office OCU-DP (SC 5506)

·  High Density Intra-Office DSO-DP with DS0A Signalling (SC 5516)

NEBS Testing in progress

·  Provides highly reliable SS7 Transport

·  Low Power

·  Highest Density --72 Data Ports in 4 Rack Units (4RU)

·  Centralized or Distributed Network Management via GDC TEAM^® and HP OpenView

Both the SC 5506 and the SC 5516 High Density cards answer the call for innovation. They were designed with today's scalability and density requirements in mind and with the flexibility required by Service Provider craft personnel.

Both cards support six data ports. Four of the cards accommodate 24 DS0s or a full T1 connection. Front panel LED status indicators allow confirmation of local configuration and status.

The SC 5506 and the SC 5516 support 56K rates for legacy D4 channel banks as well as 64K rates for clear channel T1 applications. The user can mix 56 and 64 K rates on the same card

SpectraComm PRI

The SpectraComm PRI (SC PRI) card performs the necessary signaling to support Primary Rate ISDN (PRI). When the PRI card is installed in conjunction with a SC 5001, it performs signaling on channel 24 of the T1/PRI line. Channels 1 through 23 are available for user traffic and can be distributed to SC 5034 DSE cards.

Multiple ISDN PRI lines can be provisioned, by arrangement with the service provider. The PRI card supports D channel signaling for two PRI lines connected to individual SC 5001 LTUs. All 24 channels of the second PRI line are available to carry user traffic for a total of 47 channels.

SpectraComm Alarm Card

The SpectraComm Alarm Card allows the user to extend alarm monitoring capabilities. The Alarm Card provides contacts to activate local and remote customer alarm systems, local and remote indication of alarms in a system, and separate cutoff controls for local and remote systems.

Introduction | Shelves and Enclosures | Integrated Access Solutions | Line-by-Line Solutions | Management and Security | SpectraComm Modems and CSU/DSUs At A Glance | General Specifications | Integrated Access Specifications | Line-by-Line Specifications | Modem Specifications | Product Literature

Shelves and Enclosures

SpectraComm High Density Shelf

GDC's SpectraComm MS-2 high density shelves offer universal rackmounting for up to 16 network access support products. SpectraComm provides a new dimension of flexibility and control, made possible by its modular, bus-oriented backplane that transforms the basic rackmount shelf into an intelligent platform with integral network management capabilities. You gain a springboard to dial modem management, as well as application-independent packaging for any mixture of narrowband, wideband or broadband services.

High Density

SpectraComm MS-2 Shelves offer cost-effective solutions for both service provider and enterprise environments. Per NEBS specifications, the high density model occupies only 7 inches (178 mm) of rack height and a shallow 12 inches (305 mm) of depth. Shelves can be flush or center-of-gravity mounted in either standard 19 or 23-inch cabinets. AC and DC powered versions, Telcordia NEBS compliance, and worldwide safety and EMI compliance add to SpectraComm's versatility.

Flexible Interfaces

With SpectraComm MS-2 Shelves, you can tailor network interfaces, transmission product types and speeds, and business equipment connections to fit your networking needs. The secret to this flexibility is an innovative, modular backplane design that divides functionality into three horizontal zones: a network interface zone, a management bus zone, and DTE zone. This architecture, along with front panel connectors, supports DSX-1, V.35, EIA-530, V.24, EIA/TIA-232, BNC and HSSI interfaces. This interface flexibility allows a mix of applications across a single shelf system.

Multiple Power Supplies Provide Redundancy

Each shelf can accept either one or two plug-in power supplies. One supply is sufficient to support a fully populated shelf. However, a second supply can be added for load sharing and to provide redundancy, especially for critical on-line applications.

SpectraComm 2000

The SpectraComm 2000 (SC 2000) offers a low-density, flexible foundation for integrating local and wide area data networks. Equipped with dual power supplies and a variety of plug-in cards, the SC 2000 serves as a versatile shelf system that supports many network services.

The SpectraComm 2000 Shelf houses two SpectraComm cards in a compact, modular enclosure. The shelf enables cost-effective connectivity, providing the same interfaces found on the SpectraComm High Density Shelf.

Packaging

The SC 2000 is designed for the space limitations of Central Offices or remote/cell sites that require a one rack unit (1 RU) NEBS-compliant enclosure. A wide range of SpectraComm plug-in cards are available for the SC 2000 Shelf.

The SC 2000 measures 19 inches (482.6 mm) wide X 1.75 inches (44.45 mm) high X 10.6 inches (269.2 mm) deep per NEBS specifications. Modules are hot-swappable, allowing service or hardware upgrades without interrupting system operation.

The SpectraComm 2000 meets TIA/EIA-310E specifications for rackmount installation and is designed to accommodate wallmounting installation as well. The shelf can be mounted in 19, 23 or 26 inch cabinets using front mount installation, as well as in 19 or 23 inch cabinets using center-of-gravity mounting. The same hardware brackets allow for front, center and wall mount installations. An optional kit is available for 26 inch cabinets.

Redundant Power Supplies

The SC 2000 may be equipped with a single power supply or with two independent supplies. It supports both 24 VDC and -48 VDC input options that take advantage of the power sources available at cellular Base Station Controllers and cellular Base Station Transmission Systems, as well as at the central office. An external AC "all range" power supply is also available.

During normal operation, twin power supplies perform load sharing. However, should one fail, the other supply will automatically power the entire shelf -- without loss of service — providing increased reliability. Similarly, replacement of the failed power supply can be performed without service interruption.

Remote Access 1000

The Remote Access 1000 (RA 1000) is a single card standalone enclosure for locations that require "Telco Tough" SpectraComm products in an industrial strength AC enclosure. The design of this enclosure is similar to the SpectraComm 2000 with the standard connectors and craft port on the rear panel. AC power is connected with an IEC 320 connector and power cord.

Network Management

The RA 1000 is designed for CPE locations that require the full range of management provided by TEAM and HPOV. In addition, the SpectraComm 800T3, 553 and 521A all use the craft port for local test and configuration. These SpectraComm products also provide in-band SNMP management through HP OpenView using in-band management from the central site SCM.

SpectraComm Multipak Enclosure

The ten slot SpectraComm Multipak Enclosure is a high density package for CPE locations. This attractive enclosure accepts a wide range of SpectraComm low profile, seven-inch high cards for space-saving installations.

The SpectraComm Multipak is constructed of durable, lightweight materials. It features a hinged, semi-transparent smoked plexiglass front that allows the status LEDs on the cards to be monitored and easy access to the enclosed SpectraComm devices. Since products plug directly into connectors on the system backplane, they can be quickly added, removed, or exchanged under system power with no impact on the other cards in the shelf, ensuring continuous network operation.

The Multipak can be configured with a 100/120 VAC power supply module that plugs easily into any standard AC power outlet. The unit may also be ordered with a 220/240 VAC input. Both modules are removable for easy on-site replacement.

Common Cards

The SpectraComm family has been designed so that all of the cards fit into any of the enclosures. This allows users to maintain common spares for all of the standalone and rackmount units.

Introduction | Shelves and Enclosures | Integrated Access Solutions | Line-by-Line Solutions | Management and Security | SpectraComm Modems and CSU/DSUs At A Glance | General Specifications | Integrated Access Specifications | Line-by-Line Specifications | Modem Specifications | Product Literature

GDC is a leader in the design, development, and manufacture of high-speed network access and transport equipment for carriers and service providers, governments and commercial end-users worldwide.

We manufacture and market a broad range of products and solutions including:

• Multiservice Solutions
• NEBS Certified Routers
• NEBS Certified IP Transport and Switching
• Integrated Access Devices to Consolidate Bandwidth Requirements
• DSLware and Universal xDSL Access Systems to Extend the Copper Loop
• Modems/AES Encryption for Secure, High Speed Remote Access
• CSUs/DSUs for Narrowband and Broadband Access
• Certified for DOD Interoperability by JITC
• SNMP-based Network Management Systems

GDC's SpectraComm family of products are known in the industry as "Telco Tough" because they are manufactured to stringent standards for reliability, interoperability and serviceability. The NEBS-compliance of our central office products is a key advantage, not only for GDC's carrier and service provider customers, but also for operators of mission-critical government and enterprise networks.

GDC's Xedge MSPx family of products are deployed for use in converging and migrating legacy TDM, ATM, Frame Relay and other services to packet based architectures. Forward-looking network planners not only support new and legacy services, but are also migrating towards transport technologies such as MPLS that converge Layer 2 and Layer 3 switching of any-to-any services. GDCs MultiService Packet Exchange platform (MSPx) can interconnect remote enterprise sites with emerging Ethernet/IP and legacy services across an MPLS, MPLS, Ethernet, IP, VLAN, MLPS or ATM WAN.

At the heart of the MSPx platform is the Packet Cell Switch (PCx), Packet Circuit Emulation (PCE), and other modules facilitating multiservice convergence. PCx enables Metro Ethernet Forum compliant E-Line services over an MPLS, Ethernet, IP, VLAN, MLPS or ATM backbone. It also supports transport of legacy TDM, ATM,IP, VLAN and Ethernet service packets using pseudowires. A variety plug-in interfaces also support diverse services.