Model MTT1DSUUser Guide

10Front PanelThe front panel contains three sets of LEDs that provide the status ofthe MultiDSU and its data and T1 connections. The Data LEDs display

11Back PanelAll the cable connections for the MultiDSU are made at the back panel.The Line connector enables the MultiDSU to be connected to a T1 line

12FCC Regulations for Telephone Line Interconnection 1.This equipment complies with Part 68 of the FederalCommunications Commission (FCC) rules. On th

13necessary modifications in order to maintain uninterruptedservice.6. If trouble is experienced with this equipment (the model of whichis indicated b

14SpecificationsT1 Line• Single T1 Line port with synchronous data format• AMI or B8ZS line coding• D4 Superframe or Extended Superframe framing suppo

Chapter 2 - Installation

16IntroductionThis chapter provides the safety warnings applicable to the MultiDSUand describes the unpacking of the MultiDSU, cable connections, andh

17MultiDSU ConfigurationConfiguring the MultiDSU involves completing all the necessaryconnections, including connecting a cable between the MultiDSU a

18LAN 2ServerServerPCPCWorkstationTechSystems®LAN 1PCWorkstationPCRouterMultiDSUData PortData PortTechSystems®RouterMultiDSU(Slave)(Master)RJ48back-to

19Cabling Your MultiDSUCabling your MultiDSU involves making the proper Power, Commandport, Line, and Data port connections. Figure 2-2 shows a typica

Class AManual DeclarationNOTE: This equipment has been tested and found to comply with thelimits for a Class A digital , pursuant to Part 15 of the FC

204. Connect the external wall transformer power supply to theMultiDSU and plug it into a live AC outlet. When power is appliedto the unit and the on

21ConfigurationIf you are connecting to a Telco, get the following T1 information fromyour Telco :Line Code: AMI/B8ZS_________________________________

223. Enter option 1 and press the ENTER key to display the T1 LineConfiguration menu with options for Framing Format, Line Coding,and Line Type and Le

23Line Coding 1. Alternate Mark Inversion (AMI) 2. Binary 8 Zero Substitution (B8ZS)Enter Selection (-(previous), q(uit), <1>): _Enter op

24Configurations 1. T1 Line Configuration 2. DS0 Speed/DS0 Allocation 3. Clocking 4. V.35 Port 5. Set configurations 6. Set and Save confi

25Configurations 1. T1 Line Configuration 2. DS0 Speed/DS0 Allocation 3. Clocking 4. V.35 Port 5. Set configurations 6. Set and Save confi

2610. At the configurations menu, enter option 4 and press the ENTERkey to display the RTS/DTR menu associated with the V.35 DataPort.V.35 Port 1. F

27T1 DSU Main Menu 1. Configurations 2. Current Status 3. Statistics 4. Diagnostics 5. System InformationEnter Selection (-(previous), q(uit), <1&g

28

Chapter 3 - Menu System

MultiDSU User Guide82083200 Revision AModel MTT1DSUThis publication may not be reproduced, in whole or in part, without priorexpressed written permiss

30IntroductionThe menu system for the MultiDSU provides a set of user-friendlyconfiguration menus that are accessible from a main menu. The MainMenu c

31T1 Line Configuration 1. Framing Format : D4 Superframe 2. Line Coding : Alternate Mark Inversion (AMI) 3. Line Type an

32Line Type and LengthThe line type and line length options enable the user to configure theMultiDSU to match the characteristics of the T1 line.The d

33Clocking MenuThis menu enables you to select the clock timing (Internal, Line, orExternal) for the MultiDSU. If you are connecting to a Telco, choos

34menu. Once they are saved, these settings will be retained if theMultiDSU happens to lose power or is turned Off.Reset to Factory DefaultsThe Config

35StatisticsSelecting option 3 on the Main Menu displays the Statistics. This screenenables you to view any of eight different types of hourly or dail

36Bursty Errored SecsBursty Errored Seconds (BES) are seconds containing 2 to 319 CRC6errors.Severely Errored SecsSeverely Errored Seconds (SES) are s

37DiagnosticsSelecting option 4 on the Main Menu opens the Diagnostics screen,with options for the various types of loopback tests that can be per-for

38System InformationSelecting option 5 on the Main Menu opens the System Informationscreen, which displays the firmware version number.System Informat

Chapter 4 - RemoteConfiguration

ivContents Chapter 1 - Introduction and DescriptionIntroduction ... 8Abo

40IntroductionRemote configuration of the MultiDSU involves using modems tocommunicate from the local PC or terminal to the remote MultiDSU,where a sp

Chapter 5 - Diagnostics

42IntroductionMultiDSU diagnostics involve using the Diagnostics menus that areaccessible through option 4 on the Main Menu. Option 4 opens theDiagnos

43Diagnostics MenuThe Diagnostics menu enables you to run (and end) any of four differentloopback tests, return to the previous menu, or exit (quit) t

44MultiDSURemoteMultiDSUT1 LineMuxMux Remote LoopbackFigure 5-2. Remote Loopback TestProcessor LoopbackThis test (option 3 on the Diagnostics menu) l

Chapter 6 - Warranty, Serviceand Technical Support

46IntroductionThis chapter starts out with statements about your MultiDSU 2-yearwarranty. The next section, Tech Support, should be read carefully if

47On-line Warranty RegistrationIf you would like to register your MultiDSU electronically, you can do soat the following address:http://www.multitech.

48About the InternetMulti-Tech is a commercial provider on the Internet. If you prefer toreceive service via the internet, you can contact Tech Suppo

Appendixes

vSet and Save Configurations ... 33Reset to Factory Defaults ...

50Appendix A - Cabling DiagramsCommand Port Cable1 2 3 4 5 6 7 8COMMANDPIN NO.202345678112345678To DTE Device(Terminal Device; e.g.,ASCII Terminal or

51Data CableAs viewed from the connector side(rotated clockwise 90 degrees).V.35 34-PIN CONNECTORCHMSWEEKKDJNTXBBFFLLAEKPUYCCHHMMBFLRVZDDJJNNChassis G

82083200

Chapter 1 - Introduction and Description

8IntroductionThe Multi-Tech Systems MultiDSU (Model number MTT1DSU) is a lowcost, full-featured T1-FT1 Data Service Unit (DSU). The MultiDSUprovides

9About This User GuideThis user guide describes the MultiDSU and explains how to install andconfigure the unit. The information contained in each cha