Channel service unit See CSU Clocking, Cpe, Csu | ADTRAN T3SU 300

Appendix D. Glossary

channel service unit See CSU.

clocking

An oscillator-generated signal that provides a timing reference for a transmis- sion link. A clock provides signals used in a transmission system to control the timing of certain functions. The clock has two functions: (1) to generate periodic signals for synchronization, and (2) to provide a time base.

control port

The electrical interface between the T3SU 300 and the control terminal. The con- trol terminal is used to communicate commands to the unit.

CPE

customer premise equipment. All telecommunications terminal equipment located on the customer premises, including telephone sets, private branch exchanges (PBXs), data terminals, and customer-owned coin-operated tele- phones.

CSU

channel service unit. A device used to connect a digital phone line coming in from the phone company to either a multiplexer, channel bank, or directly to another device producing a digital signal; for example, a digital PBX, a PC, or data communications device. A CSU performs certain line-conditioning and equalization functions, and responds to loopback commands sent from the cen- tral office. A CSU regenerates digital signals. It monitors them for problems and provides a way of testing the digital circuit.

CTS

clear to send. A signal on the DTE interface indicating that the DCE is clear to send data.

data communications equipment See DCE.

data service unit See DSU.

dB

decibel. A unit of measure of signal strength; usually the relation between a transmitted signal and a standard signal source.

D-4

T3SU 300 User Manual

61200217L1-1

Image 106

ADTRAN T3SU 300 user manual Channel service unit See CSU Clocking, Control port, Cpe, Csu, Cts

Contents

T3SU Trademark Information About this Manual Important Safety Instructions REN FIC Usoc Year 2000 Compliance Canadian Emissions Requirements Canadian Equipment Limitations Table of Contents Status Appendix C. Acronyms/Abbreviations Appendix D. Glossary Table of Contents Xii 61200217L1-1 List of Figures Line Loopback Test List of Tables List of Tables Xvi 61200217L1-1 Introduction Product Overview T3 Overview Snmp Agent TelnetNetwork Manager MIB Hssi Card Interface Option CardsCard Warranty and Customer Service Introduction 61200217L1-1 Receiving Inspection UNPACK, INSPECT, Power UPAdtran Shipments Include Power Up Installing the UnitRackmount Installation Customer Provides Desktop Installation Rear Panel DTE Port Interface Card Slots Alarm ConnectorFunction DTE Port 1 Hssi Interface Auxiliary Port Front Panel LAN PortDS3 Interface Control Port Terminal Main Menu Navigating Within the Menus Remote Login ConfigurationDiagnostics If you want to Press LED Descriptions LOS LED Condition Configuration DTE Ports Configuration Main Menu DS3 Network Line Length DS3 FramingDS3 Timing Data Link Remote Auto-ConfigurationDS3 Scrambler DTE Ports Port Selections DTE Ports Menu Inactive Port StatusActive Apply Settings ErrorNot Installed Waiting Off When Test Idle When OffOff When OOS/OOF Forced On Transmit Clock Off When OOS/OOF or TestSelect Timed Profiles Timed Profiles Screen Profiles 1 Profile Time 1 System ManagementActive Profile Local IP Address Subnet Mask Remote IP Address Auxiliary Port ModeGateway IP Address IP Security Auxiliary Port Baud Rate Modem ModeRead Community Name Trap IP Addresses Write Community NameTrap Generation Far End Alarm Trap Descriptions Trap Type If ENABLED, this trap is sent MIB II Standard Trap Descriptions Network Test Trap Descriptions DTE Port Trap Description PasswordToggle All Traps Unit ID Terminal TimeoutAlarm Relay Date/Time Initializing String Dial String Maximum Redial Attempts Idle TimeoutConnection Timeout Pause Between Calls Hangup UtilitiesAnswer on Ring Last Modem Response If the self test results are Then 11. System Utilities Menu Save Configuration Status Network State Alarm StateNetwork Port Condition Description Data Link State Remote State Com Eqpt Fail Network has signaled a non-service affecting Interface Type Port Status DTE Leads BandwidthHssi Interface Condition Leads LA and LB Leads Condition Interface Leads Status 61200217L1-1 Viewing Statistical Information Alarm History Main Local Statistics Menu Screen Current Alarm Count Screen Performance Parameters Bit Coding Violations PCV Bit Severely Errored Seconds PsesBit Coding Violations CCV Bit Errors FBE Bit Severely Errored Seconds CsesBit Errors MBE All statistical information not just the displayed screen Statistics 61200217L1-1 Diagnostics Diagnostics Main Menu DS3 DS3 Diagnostics Menu Data Mode DS3 Payload Loopback DTE Remote DS3 Loopback DTE PortsBert Remote Loopback with Bert Payload Loopback Payload Bert MUX Bert OUT DTE LoopbackMUX Payload and DTE Loopback Remote Payload Loopback with Bert Bert Configuration Pattern Direction Bert Information FieldsPort State Clear Errors ErrorsInsert Error Reset All Tests Diagnostics 61200217L1-1 Applications Single Port Full T3 Bandwidth System DTEManagement POINT-TO-POINT Multiport Application Multiport Application DTE 3 DTE 1 HssiDTE 2 Hssi DTE 4 Fractional T3 Carrier Application Fractional Application Hssi Local Remote Remote Snmp Management Application Remote Management Application Datalink = Enabled Appendix a Pinouts Signal Ground SG Table A-3. V.35 Interface Card Pin Assignments Ccitt Table A-4. LAN Port Pin Assignments Name Description TD+ DTE Interfaces Integrated Hssi port Specifications and FeaturesNetwork Interface DTE Rates Supported Agency Approvals VT 100 Terminal InterfaceSNMP/Telnet Environment Appendix C Acronyms/Abbreviations DDS OOF Appendix C. Acronyms/Abbreviations 61200217L1-1 AMI AISAnsi Bert BPV Ccitt CPE Channel service unit See CSU ClockingControl port CSU Dlci DCEDDS DS1 FCC FDL LAN LOS MIB NRZ Pstn POPSES TDM SnmpTelnet Yellow alarm WAN Appendix D. Glossary 61200217L1-1 Index DS3 Index-3 Index-4 61200217L1-1 Index-5 Yellow alarm traps Post-Sale Support Pre-Sales Inquiries and Applications SupportRepair and Return