Kentrox DataSMART 681 56/64k
Frame Monitoring DSU/CSU

Kentrox DataSMART 681 56/64k Frame Monitoring DSU/CSU

Please contact us  301-924-7400

Kentrox DataSMART 681 56/64k Frame Monitoring DSU/CSU


 With Frame Monitoring DSU/CSUs from Kentrox, service providers and enterprise customers can monitor the end-to-end performance of their Frame Relay network. The DataSMART® 681 Frame Monitoring DSU/CSU supports 56/64k Frame Relay services. When teamed with ServicePoint Manager software, network managers can verify Service Level Agreements (SLAs); isolate performance problems to the LAN, local loop, or Frame Relay network; determine appropriate bandwidth needs; and monitor network trends to aid in future capacity planning. DataSMART Frame Monitoring DSU/CSUs maximize your network uptime with convenient management features, such as in-band access for simplified remote management. Embedded, standards-based SNMP ensures easy central management.


• Validate Frame Relay Service Level Agreements
• Match bandwidth to application requirements
• Isolate poor performance to the LAN or WAN
• Reports available from ServicePoint Manager and enterprise network reporting packages
• Standards-based, in-band management with SNMP
• DataSMART Installer included at no charge
• Alarms Utility available as a free download from the Kentrox web site
• 5-year manufacturer's warranty

Complete frame monitoring solutions

The DataSMART 681 Frame Monitoring DSU/CSU supports 56/64k Frame Relay services and includes a variety of helpful confi guration and diagnostic tools to simplify installation, troubleshooting, and circuit performance monitoring. ServicePoint Manager software graphically displays key statistics on the Frame Relay network. The management data provided by DataSMART Frame Monitoring DSU/CSUs is also compatible with popular enterprise reporting systems, including Concord Communications' Network Health®.

Frame Relay monitoring

DataSMART Frame Monitoring DSU/CSUs provide unique and powerful tools for analyzing Frame Relay performance end-to-end and separately in the enterprise and local loop. By providing a complete picture across the Frame Relay network, carriers and enterprise network managers have the information necessary to determine network availability, performance, problem sources, and bandwidth requirements. By operating at the network access point, DataSMART Frame Monitoring DSU/CSUs offer independent and objective visibility of the network to help identify the true source of performance problems and the best resolution.

Comprehensive local-loop monitoring

Poor line signal quality, framing violations, dropped packets, slow throughput, and other network errors can all be caused by problems in the local loop. DataSMART DSU/CSUs provide a variety of circuit performance monitoring tools to help determine the health of your wide area network.

LMI spoofing
To help network managers troubleshoot problems quickly and minimize downtime, the DataSMART 681 Frame Monitoring DSU/CSU supports LMI spoofi ng. The LMI spoofi ng feature auto-detects router or switch failure and maintains communication with your remote units.

LMI spoofing

To help network managers troubleshoot problems quickly and minimize downtime, the DataSMART 681 Frame Monitoring DSU/CSU supports LMI spoofi ng. The LMI spoofi ng feature auto-detects router or switch failure and maintains communication with your remote units.

Standards-based management

The DataSMART embedded SNMP agent supports SETs, GETs and Traps, as well as standard MIBs, such as MIB II and Frame Relay MIB (RFC 2115). And for comprehensive control, an enterprise MIB supports all available functions.

Advanced management and diagnostics

DataSMART DSU/CSUs have advanced features that enable you to take active control of your network, such as in-band SNMP and an integrated DCE control port for connecting a laptop computer. Comprehensive loopback options help you identify and resolve performance issues in the Frame Relay local loop before they affect service. With the DataSMART, you can remotely confi gure your units and receive SNMP traps for important network events.

Flexible reporting options

DataSMART Frame Monitoring DSU/CSUs support an open architecture for reporting information. Network managers can easily integrate the circuit management data into their existing reports, procedures, and activities for Frame Relay service management.
DataSMART 681 is compatible with ServicePoint Manager, an easy-to-use application that reports valuable information about the performance of your Frame Relay network.

DataSMART Installer

DataSMART Installer is an intuitive, point-and click confi guration and diagnostic utility that dramatically reduces the time to set up access to a Frame Relay circuit. Free with each DataSMART DSU/CSU, this Windowsbased application communicates with Kentrox DSU/CSUs over direct serial, in-band and modem dial-up connections. When installing multiple DataSMART DSU/CSUs, users can confi gure the fi rst unit, and then download, store, and export the confi guration to other DataSMART units for rapid deployment. When the circuit is up, DataSMART Installer provides valuable performance data and diagnostics with a simple point-and-click.

Alarms Utility

The Alarms Utility monitors the entire network for interface and device errors, posting them to the event log in the HP OpenView® management system. Custom icons uniquely identify all DataSMART DSU/CSUs for easy recognition in the Network Node Manager topology map. This software is available free from the Kentrox web site.


Ordering Information



Line: DDS or 64k clear channel

Receiver Sensitivity: -34dBm

Mechanical: RJ48S socket


Line Rate: 56 kbps or 64 kbps

Electrical: V.35 compatible

Mechanical: MRAC34 socket


Control Ports: DCE, EIA-561, 9600 bps; English

menus, Async ASCII or SLIP

SNMP Agent: MIB II (RFC 1213), Frame Relay

MIB (RFC 2115), Enterprise MIB, TELNET server,

Responds to PING, Security fi lters for IP source

addresses, Up to 10 SNMP trap hosts,

In-band: From network or router, Shared or

dedicated VC, Frame Relay


Traps: SNMP traps via SLIP or in-band


Methodology: Non-intrusive, in-band

Virtual Circuit (VC) Statistics: Frame count per

VC, dropped Frame count, octet count per VC,

DE/FECN/BECN bit count per VC

VC Utilization: CIR/EIR exceeded count per VC,

octet count during CIR/EIR

VC Delay Measurements: Maximum observed

delay, average delay, attempts made,

measurement packets lost, automatic delay

VC Delay Diagnostics: Round-trip VC delay via

in-band, Frame Relay

Performance Thresholds: User confi gurable,

access bandwidth utilization, round-trip delay

Reports: Frame VC statistics, port statistics, Frame

VC delay, Frame VC utilization, burst: data sent

above CIR and above, excess burst rates


LEDs: Power, Status, Test, Network, Data port

Loop Tests: CSU loopback, DSU loopback, Data

terminal loopback


ANSI: T1.410-1992


FCC Compliance: Part 68; Part 15, Class A

NRTL Listed: UL 1950, 3rd Edition

CSA: 22.2; No. 950

IC: CS-03


Operating: 0° to 50° C, 5% to 90% RH,


Storage: -20° to 66° C, 5% to 95% RH


AC: 115 VAC, 60 Hz, 15W maximum


Usage: Desktop or tray mount

Dimensions: 7.75" W x 1.65" H x 11.5" D

Weight: 2.5 lbs (approx.)



kentrox products