Kentrox CSU/DSU, Managed CSU DSU, Channel Service Units, Data Service Units, CSUs, DSUs, Kentrox Switches

Kentrox CSU-DSU's-Kentrox Routers- Managed CSU DSU

Kentrox CSU/DSU-Kentrox CSU DSU-Channel Service Unit- Data Service Units-CSUs-DSUs

Kentrox Data Service Unit/Channel Service Units (DSU/CSUs) are renowned for their performance, reliability, and broad range of features. DSUs are WAN access devices that combine the data formatting of a DSU with the FCC-mandated line protection and diagnostic capabilities of a CSU. Basic DSU/CSUs are ideal for networks where there are no requirements for remote diagnostics or any form of centralized management. Managed DSU/CSUs provide a way for an IT manager to view many remote devices from a centralized monitoring console. Managed DSU/CSUs can also generate alarms when certain network events occur, and forward those alarms to the management console to assist in network troubleshooting. A managed DSU/CSU typically includes an SNMP-compatible agent and supports standard interface MIBs.Although slightly more expensive to purchase than a basic DSU/CSU, a managed DSU/CSU can significantly reduce service outage time because of its diagnostic capabilities.

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DSUs

CSUs

Wireless Access

ISDN

Frame Monitoring

Q-Series Access Routers

Kentrox CSU-DSU's- Channel Channel Serivce Units- Data Service Units

Frame Monitoring DSU/CSUs include the management features of a managed DSU/CSU, and can also monitor the performance of the public Frame Relay network. In addition to monitoring Frame Relay SLA (Service Level Agreement) performance parameters, this class of DSU/CSU can also determine bandwidth usage peaks and can be used to correctly size the WAN service (FR port and PVC). The Frame Monitoring DSU/CSU provides the means for the IT manager to determine the optimal balance between performance and cost. Many businesses transmit data, voice and video over a WAN and use DSU/CSUs to connect multiple types of communications equipment. For integrating voice and data, you need the carrier to provide an integrated voice/data service. You also need an add/drop port on the DSU/CSU, which allows you to combine a data interface (V.35) and a fractional T1 or E1 onto a single WAN connection.

Kentrox Channel Service Units- CSUs

Kentrox Data Service Units- DSUs

Although slightly more expensive to purchase than a basic DSU/CSU, a managed DSU/CSU can significantly reduce service outage time because of its diagnostic capabilities.Frame Monitoring DSU/CSUs include the management features of a managed DSU/CSU, and can also monitor the performance of the public Frame Relay network. In addition to monitoring Frame Relay SLA (Service Level Agreement) performance parameters, this class of DSU/CSU can also determine bandwidth usage peaks and can be used to correctly size the WAN service (FR port and PVC). The Frame Monitoring DSU/CSU provides the means for the IT manager to determine the optimal balance between performance and cost. Many businesses transmit data, voice and video over a WAN and use DSU/CSUs to connect multiple types of communications equipment. For integrating voice and data, you need the carrier to provide an integrated voice/data service. You also need an add/drop port on the DSU/CSU, which allows you to combine a data interface (V.35) and a fractional T1 or E1 onto a single WAN connection.

If business traffic levels from a PBX are relatively low, significant cost savings can be achieved by integrating these data traffic sources onto a single T1 connection.D-SERV II 56/64kbps DSU/CSU from Kentrox supports high-speed LAN-to-LAN internetworking, video conferencing services, Frame Relay, and Internet access. The D-SERV II provides a high quality, economical solution for the network termination of 56/64 kbps clear channel digital services. Easy to use and configure, the D-SERV II installs in minutes, providing plug-and-play operation for most common services. It features a built-in test pattern generator and error indicator along with a full complement of front-panel LED indicators affording "at-a-glance" system monitoring. On multi-point networks, the D-SERV II's anti-streaming feature prevents a streaming DTE from affecting communications to operating network sites. The D-SERV II 56/64 DSU/CSU's low power requirements (8 watts from standard 115 VAC outlet) and exceptional price provide for economical and cost effective deployment and operation.

What is a CSU/DSU?

A CSU/DSU (Channel Service Unit/Data Service Unit) is a hardware device about the size of an external modem that converts digital data frames from the communications technology used on a local area network (LAN) into frames appropriate to a wide-area network (WAN) and vice versa. For example, if you have a Web business from your own home and have leased a digital line (perhaps a T-1 or fractional T-1 line) to a phone company or a gateway at an Internet service provider, you have a CSU/DSU at your end and the phone company or gateway host has a CSU/DSU at its end.

The Channel Service Unit (CSU) receives and transmits signals from and to the WAN line and provides a barrier for electrical interference from either side of the unit. The CSU can also echo loopback signals from the phone company for testing purposes. The Data Service Unit (DSU) manages line control, and converts input and output between RS-232C, RS-449, or V.35 frames from the LAN and the time-division multiplexed (TDM) DSX frames on the T-1 line. The DSU manages timing errors and signal regeneration. The DSU provides a modem-like interface between the computer as Data Terminal Equipment (DTE) and the CSU.

Product ------------------------Models --------------------------------------Functionality

Satellite 931 T1 CSU ----------77931 ------------------------------Basic CSU --DSX1
T-SERV II T1 CSU ------------77115, 77965, 77966-------------- Basic CSU DSX1
T-SMART T1 Intelligent CSU-- 77120, 77961, 77962 --------------CSU with local management access DSX1
M-PATH T1 Intelligent CSU CSU with inband and local management access DSX1 and V.35
CrossPATH IIAC Triple T1 Intelligent CSU 77731 CSU with inband, local management access, AC power T1, DSX1 and V.35
CrossPATH IIe Triple T1 Intelligent CSU 77732 CSU with inband and local management access T1, DSX1, V.35 and Ethernet

DSUs

CSUs

Wireless Access

ISDN

Frame Monitoring

Q-Series Access Routers

To Switches-Routers

The CrossPATH II AC Triple T1 ICSU helps you consolidate multiple voice, video and data traffic onto a single T1 circuit. By merging diverse traffic onto a single T1, CrossPATH II AC reduces the number of T1/FT1 lines needed for WAN access, and saves on access charges month after month.

CrossPATH II AC allows you to proactively manage your network, spot and solve problems before they degrade service, paralyze users, and bring the system down. With CrossPATH II AC you can determine port status, set loopbacks, view performance reports and change configuration through an easy-to-use menu structure. Since service-affecting problems can be predicted before they cause outages, CrossPATH II AC improves network reliability and helps you save valuable time and money.

Product------------------ Model WAN Speed------------------ Form Add/Drop Port Data Ports

D-SERV II ----------------4020CE 56/64k -------------------------Standalone - 1 V.35
Satellite 651------------- 72651 T1* ---------------------------------Standalone - 1 V.35
D-SERV T1-------------- AC 78222 T1* ----------------------------Standalone - 1 V.35
D-SERV T1--------------- DC 78210 T1* ---------------------------Plug-in - 1 V.35

Product------------------- Model WAN Speed -----------------Form Add/Drop Port Data Ports

DataSMART----------------- 552 72552 56/64k ---------------------Plug-in - 1 V.35
DataSMART----------------- 456 72456 E1*-------------------------- Standalone - 1 V.35 / X.21
DataSMART----------------- 458 72458 E1* --------------------------Standalone Yes 1 V.35 / X.21
DataSMART -----------------E1 MAX Dual-port, AC 72521 E1* Standalone - 2 V.35 / X.21
DataSMART ------------------554 72554 T1* Plug-in --------------- 1 V.35 / EIA-530 / RS-449
DataSMART------------------ 558 72558 T1* --------------------------Plug-in Yes 1 V.35 / EIA-530 / RS-449
DataSMART-------------------656 72656 T1* -------------------------Standalone - 1 V.35
DataSMART------------------ 658 72658 T1* -------------------------Standalone Yes 1 V.35
DataSMART MAX Dual-port---- AC 72561 T1*--------------------- Standalone - 2 V.35 / EIZ-530 / RS449
DataSMART MAX Dual-port--- Add/Drop, AC 72761 T1* ---------Standalone Yes 2 V.35 / EIZ-530 / RS449
DataSMART MAX Dual-port--- Add/Drop, DC 72765 T1*---------- Standalone Yes 2 V.35 / EIZ-530 / RS449
DataSMART MAX Quad-port-, AC 72771 T1* ---------------------Standalone Yes 4 V.35 / EIZ-530 / RS449
DataSMART MAX Quad-port-- DC 72775 T1*--------------------- Standalone Yes 4 V.35 / EIZ-530 / RS449
DataSMART T3/E3 Intelligent DSU, AC 15951 T3/E3------------- Standalone - 1 V.35 / EIA-530 / HSSI
DataSMART T3/E3 Intelligent DSU, DC 15952 T3/E3--------------Standalone - 1 V.35 / EIA-530 / HSSI

Frame Monitoring

Product ---------------Model ----------------WAN Speed Form Add/Drop Port Data Ports
DataSMART--------- 681 72681--------- 56/64k Standalone - 1 V.35
DataSMART--------- 584 72584--------- T1* Plug-in - 1 V.35 / EIA-530 / RS-449
DataSMART ---------588 72588--------- T1* Plug-in Yes 1 V.35 / EIA-530 / RS-449
DataSMART--------- 696 72696--------- T1* Standalone - 1 V.35
DataSMART--------- 698 72698 ---------T1* Standalone Yes 1 V.35

Kentrox Data Service Units- DSUs

DSUs

* Family Overview

Basic

* D-SERV II, 56/64k
* D-SERV T1, T1
* Satellite 651, T1

Managed

* DataSMART 552, 56/64k Plug-in
* DataSMART 456, E1 Standalone
* DataSMART 458, E1 Standalone
* DataSMART E1 MAX Dual-port, E1 Standalone
* DataSMART 554, T1 Plug-in
* DataSMART 558, T1 Plug-in
* DataSMART 656, T1 Standalone
* DataSMART 658, T1 Standalone
* DataSMART MAX T1 Dual-port
* DataSMART MAX T1 Dual-port Add/Drop
* DataSMART MAX T1 Quad-port Add/Drop
* DataSMART T3/E3 IDSU

Frame Monitoring

* DataSMART 681, 56/64k Standalone
* DataSMART 584, T1 Plug-in
* DataSMART 588, T1 Plug-in
* DataSMART 696, T1 Standalone
* DataSMART 698, T1 Standalone

Accessories

* Universal Mounting Tray

Q-Series QoS Access Routers

* Q-Series Family Overview
* Q2200 T1 QoS Access Router
* Q2300 Ethernet QoS Access Router

Access Concentrators (AAC)

* AAC Family Overview
* CellSMART Access Concentrators

Wireless Access

CrossPATH® IIe Triple T1 ICSU

* Wireless Family Overview
* CrossPATH II Triple T1 Intelligent CSU
* CrossPATH IIe Triple T1 Intelligent CSU

CSUs

* CSU Family Overview
* T-SMART T1 Intelligent CSU
* T-SERV II T1 CSU
* Satellite 931 T1 CSU
* M-PATH T1 Intelligent CSU
* CrossPATH II AC Triple T1 Intelligent CSU
* CrossPATH IIe Triple T1 Intelligent CSU

ServicePoint

* ServicePoint Family Overview

ISDN

* NT1 1010 Network Termination Unit

WHAT IS A CSU?- WHAT IS A DSU?

Short for Channel Service Unit/Data Service Unit. The CSU is a device that connects a terminal to a digital line. Typically, the two devices are packaged as a single unit. The dSU is a device that performs protective and diagnostic functions for a telecommunications line. You can think of it as a very high-powered and expensive modem. Such a device is required for both ends of a T-1 or T-3 connection, and the units at both ends must be set to the same communications standard.

A CSU/DSU (Channel Service Unit/Data Service Unit) is a hardware device about the size of an external modem that converts a digital data frame from the communications technology used on a local area network (LAN) into a frame appropriate to a wide-area network (WAN) and vice versa. For example, if you have a Web business from your own home and have leased a digital line (perhaps a T-1 or fractional T-1 line) to a phone company or a gateway at an Internet service provider, you have a CSU/DSU at your end and the phone company or gateway host has a CSU/DSU at its end.

The Channel Service Unit (CSU) receives and transmits signals from and to the WAN line and provides a barrier for electrical interference from either side of the unit. The CSU can also echo loopback signals from the phone company for testing purposes. The Data Service Unit (DSU) manages line control, and converts input and output between RS-232C, RS-449, or V.xx frames from the LAN and the time-division multiplexed (TDM) DSX frames on the T-1 line. The DSU manages timing errors and signal regeneration. The DSU provides a modem-like interface between the computer as Data Terminal Equipment (DTE) and the CSU.

CSU/DSUs are made as separate products or are sometimes part of a T-1 WAN card. A CSU/DSU's Data Terminal Equipment interface is usually compatible with the V.xx and RS-232C or similar serial interface. Manufacturers of separate unit or integrated CSU/DSUs include Adtran, Cisco, and Memotec.

The CSU originated at AT&T as an interface to their nonswitched digital data system. The DSU provides an interface to the data terminal equipment (DTE) using a standard (EIA/CCITT) interface. It also provides testing capabilities.

ATEK Communications Carries the CXR, AJ CSU/DSU products including all the CSU/DSU's that are located in central offices around the world. If you need an Anderson Jacobsen CSU/DSU quote- call us on our toll free number today at (866) 650-DATA.

The CV-2000 Series offers a functional range of T1/FT1 and E1/FE1 DSU/CSUs for a variety of networking applications. These units are available as desktop units or as rack-mountable cards to be inserted in one of our Universal chassis. For more information about our rack and our management system see Rack Systems and /or Management Systems.

The T1/E1 models share the following characteristics:

T1/FT1 or E1/FE1
Nx56/64K
Non-Contiguous DS0s
10Base-T Ethernet interface
V.35 interface
X.21 interface
VT 100, AT command or menu.
V.54 Diagnostics

High speed models are configurable through a Command Port interface via menu prompts or AT commands and/or through SNMP commands on rack mount models. Remote configuration is also available. For rack mount versions see section on Management System.

The AJ 6453 Variable Rate Digital Service Unit (DSU) provides an advanced, state of the art, digital solution for your network. The 6453 is designed to grow with any DDS network application, fixed rate or variable rate, operating in either synchronous or asynchronous mode, while providing point-to-point or multi-point environments. This is the ideal unit for telemetry monitoring equipment to be connected back to a central site.

Features include:

Synchronous or Asychronous Operation
Point-to-Point or Multi-Point Operation
Limited Distance Modem Support
Advanced Local & Remote Diagnostics
12 LED Indicators
Rackmount or Standalone
V.35 & RS-232 Support

The AJ 5653 addresses your needs for the most widely used Switched-56 dial services. It's simple, fast and reliable. Simple configuration settings via standard AT commands or hardware switches. Fast? - Twice the speed of other manufacturers. Data rates of up to 115.2K bps in asynchronous mode, saves you both time and money. Reliable? - Built to the same demanding standards that AJ established for over 30 years and that customers have grown to appreciate.

Features include: