Verilink DIU 2130 (880-503297-001) Product Manual Uživatelský manuál Strana 1

Verilink DIU 2130User ManualOctober 1999P/N 880-503297-001-BDIU2130LOOPSTATSTATLOOPLOOPDATAPORT 1LOOPDATAPORT 2

x Verilink DIU 2130

Index-2 Verilink

VERILINK CORPORATION127 JETPLEX CIRCLE, MADISON, ALABAMA 35758TEL: (800) 837-4546October 1999P/N 880-503297-001-B

Verilink1-1Chapter1DIU 2130 OverviewThis manual describes the operations and functions of the DIU 2130 Data Service Unit and its associated rear conne

DIU 2130 Overview1-2 VerilinkDIU 2130 Front ModuleThe DIU 2130 front panel (Figure 1-2) has three LEDs for each customer data port.Figure 1-2 DIU 2130

DIU 2130 OverviewVerilink 1-3DIM 2435The Data Interface Module (DIM) 2435 provides:•One (1) V.35 connector (34-pin Winchester type) for connecting eit

DIU 2130 Overview1-4 VerilinkFigure 1-7 Typical DIU 2130 ConfigurationsFor a typical CSU/DSU configuration with multiple DIUs, up to 12 DIU 2130s can

DIU 2130 OverviewVerilink 1-5Figure 1-7 shows the signals conveyed between the DIUs and associated CSU on the assigned data bus. In the transmit direc

DIU 2130 Overview1-6 VerilinkInterface Logic andLoopbackMultiplexerWhen handshaking is enabled on the DIU, the interface logic processes the handshaki

DIU 2130 OverviewVerilink 1-7DescramblerThe DIU’s receive-side logic multiplexer contains a descrambler. If the DS0 customer data is scrambled at the

DIU 2130 Overview1-8 VerilinkSpecificationsElectrical, environmental, and mechanical specifications of the DIU 2130 and associated DIMs are given belo

Verilink2-1Chapter2DIU 2130 Quick Set-upBefore installing each DIU 2130 and associated DIM, the shelves, power, controller cards (NCC, SCC, or NCM), a

iiVerilink DIU 2130 User ManualCopyright NoticeCopyright  1999 Verilink Corporation. All rights reserved.This document does not create any express or

DIU 2130 Quick Set-up2-2 VerilinkBefore any module may be configured, it must first be selected. When you first logged in, the default was that the co

DIU 2130 Quick Set-upVerilink 2-3ConfigurationMenuThere is a brief delay as the SCC module tries to communicate with a CSU module in Shelf 0, Slot 0 s

DIU 2130 Quick Set-up2-4 VerilinkThe Timing Source defaults to CSU, meaning that the DIU 2130 will derive its transmit clock from the source selected

DIU 2130 Quick Set-upVerilink 2-5be forced on by typing the three letter abbreviation of the control lead. For this example, the DTE supports normal c

DIU 2130 Quick Set-up2-6 Verilink

Verilink3-1Chapter3DIU 2130 ConfigurationBefore configuring a DIU 2130, verify that:•A data bus has been assigned to the CSU of the associated NCC, SC

DIU 2130 Configuration3-2 VerilinkHandshake Control LeadsEach DIU 2130 data port also supports handshaking operation. Table 3-2 lists the handshaking

DIU 2130 ConfigurationVerilink 3-3Verilink DIU 2130 Configuration/DiagnosticsThe letter D is used on the Shelf/Slot map of the Top or Main Menu of the

DIU 2130 Configuration3-4 VerilinkThe S) shelf/slotS) shelf/slotS) shelf/slotS) shelf/slot command is used to navigate from one module to another.

DIU 2130 ConfigurationVerilink 3-5Figure 3-2 DIU 2130 Configuration Menu The CSU command assigns the DIU 2130 module to the CSU it will use. Since

Verilink DIU 2130 User Manualiii • If the telephone company alters its equipment in a manner that can affect the use of this device, it must give you

DIU 2130 Configuration3-6 VerilinkAt the prompt enter port 2 channels >enter port 2 channels >enter port 2 channels >enter port 2 channels &g

DIU 2130 ConfigurationVerilink 3-7Within 15 seconds of connecting the T1 circuit, the NET LED on the front of the controller module should change from

DIU 2130 Configuration3-8 VerilinkTimeslotsAll timeslots from 1 to 24 are listed across the screen on the eighth line of the display. Below this line,

DIU 2130 ConfigurationVerilink 3-9RTSRequest To Send—a control lead presented by the DTE (Data Terminal Equipment) to indicate that it has data that i

DIU 2130 Configuration3-10 VerilinkScramble/HDLCThe Sp command is used to enable or disable two options, Scramble and HDLC Invert, which are related t

DIU 2130 ConfigurationVerilink 3-11ClockingEnter K1 to select the clocking option for port 1.Enter K2 to select the clocking option for port 2.There a

DIU 2130 Configuration3-12 VerilinkIf the value selected is other than ideal, the DIU 2130 may be sampling the transmit data lead at or near the trans

DIU 2130 ConfigurationVerilink 3-13Use G1 to select the LOS lead for port 1.Use G2 to select for port 2. StatisticsOn the right side of the screen som

DIU 2130 Configuration3-14 VerilinkPort 1, Block Error Count 0, (STOP) >If the data pattern being sent is received with no errors, the Block Error

DIU 2130 ConfigurationVerilink 3-15Use F2 to turn Far End loopback on or off for port 2.The Far End loop is also called a remote DTE loop, it is a loo

ivVerilink DIU 2130 User ManualDeutschVORSICHT!Explosionsgefahr bei unsachgemäßem Ersetzen der Batterie! Batterie gleichen Typs und gleicher Qualität

DIU 2130 Configuration3-16 Verilink6. A,D&I NET—The CSU is in drop and insert mode and both the T1 equipment port and a DIU are in use. DIU ClockT

DIU 2130 ConfigurationVerilink 3-177. TIU—Used only if the shelf has a TIU 2850 timing circuit module installed. This is a special circuit card which

DIU 2130 Configuration3-18 Verilink

Verilink4-1Chapter4TroubleshootingController card(s) poll the various modules for alarms. If alarm reporting is enabled for the node and for the modul

Troubleshooting4-2 Verilink• Amber—Associated data channel is under test by an operator (a test signal is being applied by the DIU).• Flashing Red—Pow

TroubleshootingVerilink 4-3When a data channel loopback is activated, the incoming channel data from the network is looped back toward the far-end. Th

Troubleshooting4-4 Verilink•A Yellow Alarm is received from the network (DS1)•An unframed all-ones or alarm indication signal (AIS) is reveived from t

TroubleshootingVerilink 4-5•Error•Call SetupWhat To Do About AlarmsSome alarms clear after the user-configured timeout has expired. Other alarms requi

Troubleshooting4-6 Verilink

Verilink5-1Chapter5T1 Dial Backup Option OverviewThe T1 Dial Backup Option automatically switches a failed T1 or fractional T1 (FT1) to a usage-measur

Verilink DIU 2130 User Manualv • This product should be operated only from the type of power source indicated on the marking label and manual. If you

T1 Dial Backup Option Overview5-2 VerilinkFeaturesThe T1 Dial Backup Option offers the following features:• Backs up n × 56 or n × 64 kbit/s T1 circui

T1 Dial Backup Option OverviewVerilink 5-3How dial backup worksThe T1 Dial Backup Option allows a Verilink DIU 2130/DBU to automatically connect both

T1 Dial Backup Option Overview5-4 VerilinkOR:2. ASC is received continuously for 5 seconds by the DIU 2130/DBU from the far-end Office Channel Unit-Da

T1 Dial Backup Option OverviewVerilink 5-5Installation and ManagementNOTE:Before installing or using the T1 Dial Backup Option, read the Verilink End-

T1 Dial Backup Option Overview5-6 VerilinkConnecting Cables for Dial BackupFigure 3 shows the cable connections from the DTE to Port 1 of the DIU 2130

T1 Dial Backup Option OverviewVerilink 5-7Figure 4 Cable Interconnect Schematic when the Backup Circuit is Activated Detecting a DIU 2130/DBUUsing the

T1 Dial Backup Option Overview5-8 VerilinkConfiguring Modes for Dial BackupThe AM2000 display for configuring the T1 Dial Backup Option operation is s

T1 Dial Backup Option OverviewVerilink 5-9MANUAL/MANUALThe port does not switch when any of the above conditions occur.Table 1 provides the default se

T1 Dial Backup Option Overview5-10 VerilinkFigure 7 Status Display Screen for DIU213 0/DBU Under Port 1, one of the following codes can result:ACTIVEN

T1 Dial Backup Option OverviewVerilink 5-11 Manually Controlling Dial Backup If you do not want the automatic backup feature to take effect, you can m

viVerilink DIU 2130 User Manual

T1 Dial Backup Option Overview5-12 VerilinkCAUTIONIf you are testing a failed T1 circuit after the T1 Dial Backup Option has switched the data to the

Verilink6-1Chapter656K NMS Option OverviewUsed with the Verilink ConnecT 56K Data Service Unit (DSU), the 56K NMS Option allows Access Manager 2000 (A

56K NMS Option Overview6-2 VerilinkFigure 1 Example Configuration of the 56K NMS Option managing four remote DDS circuits The routers are each connect

56K NMS Option OverviewVerilink 6-3• OCU loopback (OCU)• Transition in Progress (TIP)• Block Code (BLK)• Release Code (RLS)If no control code is being

56K NMS Option Overview6-4 VerilinkCompatibility and RequirementsThe following revision and release levels are required to run the 56K NMS Option:• NC

56K NMS Option OverviewVerilink 6-5EPROM UpgradeIf you purchased the EPROM upgrade, you need to replace the existing EPROM in the appropriate DIU 2130

56K NMS Option Overview6-6 VerilinkThe following sections describe the AM2000 screens and procedures for installing and managing the 56K NMS Option.Co

56K NMS Option OverviewVerilink 6-764KThis allows fullest use of the channelized data path, however, to ensure ones-density throughout the network, th

56K NMS Option Overview6-8 VerilinkStatus MonitoringMonitor the 56K DDS circuit by either of the following alternatives:• Await the autonomously gener

56K NMS Option OverviewVerilink 6-9Figure 3AM2000 Display of DIU 2 130/DDS Status The fields displayed in Figure 3 are described as follows:Near End L

Table of ContentsDIU 2130Verilink DIU 2130 viiDIU 2130 Overview ...

56K NMS Option Overview6-10 Verilinkis present. The DIU must be configured properly in order to detect these signals. (See Upgrading to the 56K NMS Op

56K NMS Option OverviewVerilink 6-11Managing AlarmsThe 56K NMS Option generates the following alarms:ASCAbnormal Station CodeCMIControl Mode IdleLBLoc

56K NMS Option Overview6-12 VerilinkGroup 1 DDS CodesThis threshold setting affects the following DDS codes: •Block Code (BLK)•MJU Alert (MA)• Test Al

56K NMS Option OverviewVerilink 6-13Table 3, DIU 2130/DDS Alarm Codes, lists the alarm codes that can be sent by the DIU 2130 when configured for 56K

56K NMS Option Overview6-14 VerilinkManaging LoopbacksLoopbacks are used for sending and receiving test patterns on a circuit. The 56K NMS Option prov

56K NMS Option OverviewVerilink 6-15V.54 LoopbackThis loopback meets the T1.403 standard which is similar to the CCITT V.54 standard. It uses the same

56K NMS Option Overview6-16 VerilinkThis field selects which loop code to send in the channelized data to the remote end when the RL lead on the DTE c

56K NMS Option OverviewVerilink 6-17Figure 6 Choices for Latching loop backs ChannelThe DDS code S 0 1 0 1 0 0 0 is placed in the channelized data.DSU

56K NMS Option Overview6-18 VerilinkYou can send and monitor diagnostic test patterns from the AM2000 Online Access/Loopbacks and Online Access/Select

56K NMS Option OverviewVerilink 6-19Figure 9ASCII Interface Configuration Screen for the 56K NMS Option NOTE:Any options on the Configuration Menu fol

viii Verilink DIU 2130 Near Loop ...3-14Monitor Leads ...

56K NMS Option Overview6-20 VerilinkNOTE:DDS alarm thresholds must be set using AM2000.DIU 2130 Configuration / Diagnostic Menu OptionsC - csuAssigns

Verilink7-1Appendix7DIU/DIM Details Verilink DSUs have two sides:•A Network (T1) Side•An Equipment SideThe equipment side of the DSU is a Data Communi

DIU/DIM Details7-2VerilinkFigure 7-2 DIU 2130 Data Signal ConnectionsDCE to DSU Data and Clock/Timing SignalsAt the DCE interface on the DIU, data fro

DIU/DIM DetailsVerilink7-3The SD and RD signals have associated clock signals called Terminal Timing (TT) and Receive Timing (RT). The DIU’s input buf

DIU/DIM Details7-4VerilinkFigure 7-6 Send Timing (ST)Since TT must be locked to ST, most DTE manufacturers turn ST around on TT, and TT is usually an

DIU/DIM DetailsVerilink7-5Figure 7-8 Source of Send Timing (ST)ST controls the exact bit rate at which data is transmitted toward the network on the D

DIU/DIM Details7-6VerilinkInternal TimingIn internal timing, the ST signal is generated from an internal oscillator, while the RT signal is generated

DIU/DIM DetailsVerilink7-7Figure 7-11 External TimingDIU 2130 Clear Channel Operation Requirements This section contains information on the Data Servi

DIU/DIM Details7-8VerilinkCarrierRequirementsContact the T1 line provider (telco) and verify that the network will support the B8ZS encoding scheme.Cl

DIU/DIM DetailsVerilink7-9appropriate DS0 channel time slots of the backplane DIU data bus assigned to the CSU. In the figure, four channels are assig

Verilink DIU 2130 ixDownload Upgrade ...6-4EPROM Upgrade ...

DIU/DIM Details7-10VerilinkFigure 7-12 T1 Multiplexer (CSU/DSU) OperationDrop-and-InsertModeThe CSU of an SCC, NCC ,or TAC can also operate with DIUs

DIU/DIM DetailsVerilink7-11Figure 7-13 Drop-and-Insert Toward NetworkIn the opposite direction of transmission, the CSU passes the incoming T1 signal

DIU/DIM Details7-12VerilinkFigure 7-14 Data Flow for Drop-and-Insert Toward NetworkChannels 19 to 24 are available for high-speed data transmission ov

DIU/DIM DetailsVerilink7-13CSU TimingWhen a CSU is used with DIUs, the associated DIUs must be timed from a reference clock source. The CSU synchroniz

DIU/DIM Details7-14VerilinkIn network timing, DS1 data is timed through the CSU by a reference clock derived from the incoming signal from the network

DIU/DIM DetailsVerilink7-15T1 MultiplexerModeFigure 7-17 shows an external timing application when the CSU is in the T1 multiplexer mode. The external

DIU/DIM Details7-16VerilinkFigure 7-18 Data Equipment Timing (T1 Multiplexer Mode)Figure 7-19 shows alarm processing when LOF is detected from the net

DIU/DIM DetailsVerilink7-17The associated DIUs also perform channel conditioning by sending all-ones idle bytes to the connecting customer data equipm

DIU/DIM Details7-18VerilinkFigure 7-20 Drop-and-Insert LOF/RAI Processing (Detection from Equipment)When the CSU detects an LOF from the equipment, th

IndexVerilink Index-1Aalarm buffersdisplaying 4-4Cclear-channel operation requirements 7-7clear-channel T1 line, DIU 2130 7-7clocking signals, DIU 21