ADTRAN 2 x E1 user manual Block diagram of the BBP is shown in Figure, VT100 RS-232 Interface

Page 14

61280004L2-1C

Section 1 TRACER Description

A block diagram of the BBP is shown in Figure 1-5.

RS-232	UART	µC	Baseband Processor Board	DSP
E1 A	E1	Data	Viterbi	Spread
				Spread
				Spectrum
		Multiplexer	Encoder/	Spectrum
		Multiplexer	Encoder/	Data
			Decoder	Data
E1 B	E1		Decoder	Pump
E1 B	E1			Pump
		Fc = 140 MHz
IF	Filter		Σ
			90
		Fc = 70 MHz
			90
		IF Interface Board
21-56
VDC

Figure 1-5. BBP Block Diagram

VT100 RS-232 Interface

An RS-232 interface is provided via a 25-pin D connector for attaching a VT100 compatible terminal. The active signals used on this interface are listed below

Signal Name Pin Number		Source
Transmit Data	2	Terminal/Modem
Receive Data	3	TRACER
Request to Send	4	Terminal/Modem
Clear to Send	5	TRACER
Data Set Ready	6	TRACER
Signal Ground	7

The management system allows the E1 interfaces to be provisioned. The line code can be selected as AMI or HDB3. The signaling can be selected as channel associated signaling (CAS) or common channel signaling (CCS). Alarm conditions can also be monitored. The management system will report the following alarms on the E1 interfaces:

4	TRACER 2 x E1 User’s Manual

Image 14

Contents Tracer 2 x E1 User’s Manual 61280004L2-1C Radio Frequency Interface Statement R N I N GRadio Frequency Interference Statement Table of Contents Operation Troubleshooting Glossary SpecificationsWarranty, Ordering and Return Information Appendix aIllustrations Viii Applications Tracer DescriptionIntroduction Spread SpectrumChannel Selection Forward Error CorrectionTracer Description Direct SequenceBaseband Processor or BBP Tracer System ConfigurationE1 Interfaces Block diagram of the BBP is shown in Figure VT100 RS-232 InterfacePower Alarm ContactsIf Signal Controls and IndicatorsFreq Name Function Non-volatile MemoryBuilt-In Tests Radio Frequency Converter or RFC10. Front and Rear of Rackmount RFC Housing Antenna Selection Antenna 100 mWInstallation UNPACK, InspectInstallation Grounding15 Pin RJ-48 E1 InterfacesLink Planning P O R T a N TAntenna Feedline Loss Antenna GainPath Loss Path AvailabilitySetting the Transmitter Power GHZ, 1 Watt Transmitter OptionSetting the RFC Frequency Plan on NON 1 Watt 2.4 GHZ Models 4 GHz DiplexerPlan a Plan B Setting the RFC Frequency Plan on 5.8 GHZ Models 8 GHz DiplexerAutomatic BBP Frequency Plan Connecting the BBP and the RFCApplying Power Spreading CodeRF LOW CO-LOCATING Multiple SystemsAntenna Alignment Alarm Contacts Remote BertInstallation VT100 User Interface PasswordOperation RS-232 InterfaceSystem Status Screen OperationMain Menu Selections Main Menu Screen Tracer Main MenuE1 Status / Configuration / Loopback E1A Status ScreenLink Performance History Link Performance History ScreenE1A Statistics E1B StatisticsTroubleshooting Using the Front Panel Indicators SectionTROUBLESHOOTING4 TroubleshootingProblem Descriptions and Recommended Actions GeneralRecommended Actions TroubleshootingCV/CRC Light on E1A or E1B is Lit when CRC is enabled LBK-A or LBK-B is Lit LOS/OOF Light on E1A or E1BNo Power Light ALM is LitTest Light is Lit or Blinking TST Light is Lit After Pressing Remote Test ButtonFail Light is Lit After Pressing Remote Test Button RF Low Light is OnCV Alarm Troubleshooting Using the VT100 User InterfaceLOS Alarm RMT Alarm OOF AlarmCRC Alarm UA1 Alarm Code Sync Status Carrier Sync Status or E1 Mux Sync Status ES Values in E1A or E1B Performance History Menu Possible CauseRFC Link Up Status SES Values in E1A or E1B Performance History Menu Troubleshooting Specifications VT100 Terminal Interface SpecificationsPower Mechanical & EnvironmentalSales WARRANTY, Ordering and ReturnWarranty Repairs and ReturnsWarranty, Ordering and Return Information Glossary Acronyms Used in this ManualGlossary Personal Computer Connection DB-9 Appendix a Cable ConnectionsTerminal Connection DB-25 Modem Connection DB-25Appendix a Cable Connections