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CHAPTER 4

Troubleshooting & Diagnostics

4.1 General

This chapter presents information related to the Wirespan 600 / 610

diagnostics functions. The information presented in this chapter include:

z

User-controlled test functions

z

Troubleshooting

4.2 User-Controlled Test Functions

Loopback Function

The user-controlled test functions are activated by means of the

buttons and LCD screen.

Digital Loopback

Pressing Loopback button on top panel of WireSpan 610 or find the

function in Menu-tree of WireSpan 600. The digital loopback returns the
data sent by the remote E1 equipment towards the remote E1 equipment.
In case, clock reference source will change to E1 automatically. Signal
path shown in

Figure 4-1

.On Main menu screen you can find “DL” to

confirm setting surely.

This test checks the connections between two E1 equipments, and the

local E1 link port interface.

4-1

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Summary of Contents for WireSpan 600

Page 1: ...Atrie WireSpan 600 610 MODEM User s Manual ...

Page 2: ...WireSpan 600 610 Fractional E1 Access Unit Installation and Operation manual ...

Page 3: ...CONTENTS CHAPTER 1 Interduction 1 1 CHAPTER 2 Installation and Setup 2 1 CHAPTER 3 Operation 3 1 CHAPTER 4 Troubleshooting Diagnostics 4 1 APPENDIX A Interface Specification A 1 MENU TREE B 1 ...

Page 4: ...range is 1 through 32 corresponding to a maximum of 2048 kbps The user s payload data is packed in the corresponding number of time slot of an E1 CEPT 2 048 Mbps data stream for transmission over public or private E1 networks Versions WireSpan 600 is available on two models z WireSpan 600 fractional E1 access unit for applications that integer multiples of 64kbps range from 1 through 32 correspond...

Page 5: ... E1 or fractional E1 access unit z Support one digital data port z Selectable sync data rates of n x 64 kbps up to 2048 kbps z V 35 RS 530 RS 449 or X 21 data interfaces z Framing format PCM31 PCM30 with or without CRC 4 z Zero suppression AMI HDB3 z E1 interface complies with ITU G 703 G 704 G 732 G 823 G 706 z Unframed over E1 Options WireSpan 600 is available with the following option z 90 120 ...

Page 6: ...ace connectors are located on the lateral panel of WireSpan 600 610 A description of the lateral panel can be found in interfaces and connectors 1 3 Functional Description WireSpan 600 610 has a synchronous user s data port interface The electrical interface is user selectable The user s data port is terminated in a 50 pin SCSI type female connector ITU T Rec V 35 EIA RS 530 RS 449 and X 21 interf...

Page 7: ... to the equipment transmit clock Figure 1 4 shows the flow of timing signals through the user s data port in the DTE mode TXC RXC XTC WireSpan 600 610 DCE Figure 1 4 DTE Description E1 Interface Characteristics The WireSpan 600 E1 link interface meets the requirements of ITU T Rec G 703 G 704 G 706 G 823 The E1 link has two line interfaces a 120 ohm balanced line interface terminated in a RJ 48 ei...

Page 8: ...ink time slots used to carry the payload data The timing of the receive path of the Wirespan 600 610 E1 link interface is always locked to the clock signal recovered from the received line signal The timing of transmit path can be locked to one of the following three sources z Internal clock oscillator having an accuracy of 30 ppm z The recovered receive clock signal The maximum track range is 130...

Page 9: ...n the recovered clock signal Note that when the internal oscillator is used the DCE or DTE timing mode should be selected to synchronize the user data rate to the E1 link timing Figure 1 5 shows a typical system application using the internal timing mode on conjunction with DCE timing DTE DCE N x 64K Converter WireSpan 600 WireSpan 600 DTE DCE Internal Timing E1 Timing E1 RS 449 X 21 Figure 1 5 In...

Page 10: ...for E1 Mux application Converte r Converte r DTE DCEWireSpan 600 WireSpan 600 E1 MUX DTE DCE Timing E1 Timing V 35 E1 EIA 530 Figure 1 7 DTE DCE timing mode 1 4 Technical Specifications E1 Link Interface Framing Unframed mode PCM31 without CRC 4 PCM31 with CRC 4 PCM30 without CRC 4 PCM30 with CRC 4 Bit rate 2 048 Mbps Line code HDB3 AMI Line impedance Balanced interface 120 ohms Unbalanced interfa...

Page 11: ... X 64 kbps where n equals 1 2 3 31 Unframed mode 2048 kbps Control signals CTS follows E1 sync or constantly ON user selectable DSR follows E1 sync or constantly ON user selectable DCD follows E1 sync or constantly ON user selectable Signals polarity Transmit data and receive clock operates normal or invert TimeSlot allocation Framed modes User data inserted in user assert time slots Others can be...

Page 12: ...or AIS alarm indicator Mechanical Characteristics Power Requirements Use external power adapter Support voltage 90 120 VAC 10 47 to 63 Hz 230 VAC 10 47 to 63 Hz Power consumption 5Watt Environmental Temperature 0 to 50 C Characteristics Humidity Up to 90 non condensing 1 8 ...

Page 13: ... the hazards involved Always observe standard safety precautions during installation operation and maintenance of this product 2 2 Site Requirements Prerequisites AC powered WireSpan 600 610 units should be installed within an easily accessible grounded AC outlet capable of furnishing the nominal supply voltage 100 115 or 230 VAC in accordance with your order The ambient operating temperature of W...

Page 14: ... The required cables are available from ATRIE or can be prepared in accordance with the port connector wiring information given in Appendix A Interface Specifications The available cable and their respective uses are listed in Table 2 1 Table 2 1 Data Port Interface Cables Purpose Cable Port Interface Cable Connector End Type User Equipment Length V35T V 35 DCE M34 Female V 35 DTE 1 meter V35C V 3...

Page 15: ...ernal components and before moving jumpers touch the WireSpan 600 610 frame E1 Link Connections WireSpan 600 610 E1 link has an RJ 48C eight pin connector for the balanced interface and two BNC connectors for the unbalanced interface Appendix A E1 Balanced Port Connector provides the pin allocation for the RJ 48C connector Connector the E1 link cables to the connector s corresponding to the interf...

Page 16: ... 240 VAC Before first time installation check that the power adapter nominal supply voltage marked on a label on its top panel matches the nominal voltage available at your mains outlet 2 6 Setup After Installation You must be to check below list z The Power LED indicator always lights when WireSpan 600 610 is powered z The LCD Display will warming up after 10 seconds To configure setting the Wire...

Page 17: ...View Table 2 2 Settings Identification of Setting Function Settings Factory Setting Main E1 SETUP Framing Select E1 Frame operating mode PCM31 CCS without CRC4 PCM31 CRC CCS with CRC4 PCM30 CAS without CRC4 PCM30 CRC CAS with CRC4 PCM31 2 5 ...

Page 18: ...follow internal oscillator E1 G703 locked to E1 recovered receive clock In case the E1 receive signal is lost switches to the internal oscillator automatically DTE DCE follow user data port receive clock E1 G703 Main TS Mapping Select use timeslot and operating data rate ALL Setting all timeslot to carry data or non used enable timeslot to carry data F inhabited by Framing Enable timeslot 1 for da...

Page 19: ...t data port timing mode NORM normal operate mode INV Invert data port receive clock or transmit data NORM After setting any configuration with WireSpan 600 610 the internal NVRAM will save setting immediately When occur power down to up process the Wirespan 600 610 will recover setting automatically 2 7 ...

Page 20: ...sions The information presented in this chapter includes z Description of indicators and LCD screens z Operating procedures Refer to Chapter 4 Troubleshooting Diagnostic and troubleshooting instructions 3 2 Indicators Figure 3 1 and Figure 3 2 illustrates the top panel of WireSpan 600 610 Figure 3 1 WireSpan 600 panel 3 1 ...

Page 21: ...n E1 link receiver 4 AIS indicator Lights when two consecutive double frames each contain two or fewer zeros out of 512 bits and when framing alignment is lost 5 Left Right Enter Exit buttons When depressed activates the LCD screen to move to next by your choose 6 BNC RJ48C indicator Lights to indicate E1 link port selected 7 INT E1 DTE DCE Lights to indicate clock sources selected 8 DL LL Lights ...

Page 22: ...d step all the indicators except PWR must blinks z Following the test all the indicators except PWR WireSpan 600 610 are now ready for operation Normal Indications During normal operation the PWR and SYN indicators must light All the other indicators must be off Fault Indications If a fault occurs the BPV and or AIS alarm indicators light and data transfer may be interrupted To obtain additional i...

Page 23: ...SI EIA 530 Female cable to connect EIS 530 DTE equipment z 530C SCSI EIA 530 Male cable to connect EIS 530 DCE equipment z 449T SCSI RS 449 Female cable to connect RS 449 DTE equipment z 449C SCSI RS 449 Male cable to connect RS 449 DCE equipment z X21T SCSI X21 Female cable to connect X 21 DTE equipment z X21C SCSI X21 Male cable to connect X 21 DCE equipment 1984K To indicate data port data rate...

Page 24: ...g Used user assign carry data timeslots 01 To indicate the cursor position timeslot number E1 Link port alarm status E1 STATUS LOF YEL CRC LOF Receive loss of frame alignment YEL Receive yellow alarm CRC When use frame mode with CRC Receive error CRC 4 code Error or loss occurs Data port control signals status Control Signals CTS RTS DCD Control Signals DSR DTR activates 3 5 ...

Page 25: ...e activated by means of the buttons and LCD screen Digital Loopback Pressing Loopback button on top panel of WireSpan 610 or find the function in Menu tree of WireSpan 600 The digital loopback returns the data sent by the remote E1 equipment towards the remote E1 equipment In case clock reference source will change to E1 automatically Signal path shown in Figure 4 1 On Main menu screen you can fin...

Page 26: ...signal to the input of the data port receive path within the data port interface of the local Wirespan 600 610 Signal paths are shown in Figure 4 2 This test checks the connections between the local WuireSpan 600 610 and the local user s equipment and the local data port interface Figure 4 2 Local Loopback 4 3 Troubleshooting Instructions Preliminary Checks In case a problem occurs perform the fol...

Page 27: ...listed under Corrective Measures in the order given until the problem is corrected If the problem cannot be corrected by carrying out the listed actions have the Wirespan 600 610 check by the technical support personnel Table 4 1 Troubleshooting Chart N Trouble Symptoms Probable Cause Corrective Measures 1 No power Check that both ends of the WireSpan 600 610 power cable are properly connected and...

Page 28: ...es are asserted Perform self test on the equipment 4 Data port control signals are off 2 Defective cable Activate the local loopback and check that the local user s equipment receives its own transmission If not replace the cable connecting it to the Wirespan 600 610 1 External problem Activate the digital loopback and check remote E1 equipment receives its own transmission If not troubleshoot the...

Page 29: ...eceive Data In ring 6 Not Connected 7 8 Not Connected A 2 Data Port Connector The data port interface is terminated in a 50 pin SCSI type female connector wired in accordance with Table A 2 Table A 2 Data Port connector Wiring Pin Designation Direction Function 1 FGND Frame ground 2 RxD B OUT RX data B wire 3 RxD A OUT RX data A wire 4 N A Not Connected 5 N A Not Connected 6 RxC B OUT RX CLK B wir...

Page 30: ...y B wire 27 DSR A OUT Data set ready A wire 28 CTS B OUT Clear to send B wire 29 CTS A OUT Clear to send A wire 30 DCD B OUT Carrier detect B wire 31 DCD A OUT Carrier detect A wire 32 ID 1 IN Cable ID code bit 1 33 ID 0 IN Cable ID code bit 0 34 SG Signal ground 35 N A Not Connected 36 N A Not Connected 37 N A Not Connected 38 DSR OUT Data set ready 39 CTS OUT Clear to send 40 DCD OUT Carrier det...

Page 31: ...l A 3 Wirespan 600 610 Channel Interface Adapter Cable DCE Clock Mode Pin Direction Designation V 35 EIA 530 RS 449 X 21 1 FGND A 1 1 1 2 OUT RxD B T 16 24 11 3 OUT RxD A R 3 6 4 4 N A 5 N A 6 OUT RxC B X 9 26 13 7 OUT RxC A V 17 8 6 8 N A 9 N A 10 OUT TxC B AA 12 23 11 OUT TxC A Y 15 5 12 N A 13 N A 14 N A 15 OUT TM K 25 18 16 N A 17 IN DTR H 18 IN RTS C 19 IN RLB BB 21 14 20 IN LLB J 18 10 21 N ...

Page 32: ... DTR B 23 30 42 IN DTR A 20 12 43 N A 44 N A 45 IN RTS B 19 25 10 46 IN RTS A 4 7 3 47 N A 48 IN TxD B S 14 23 9 49 IN TxD A P 2 5 2 50 SG B 7 19 9 Tabel A 4 Wirespan 600 610 Channel Interface Adapter Cable DTE Clock Mode Pin Direction Designation V 35 EIA 530 RS 449 X 21 1 FGND A 1 1 1 2 OUT TxD B S 14 23 9 3 OUT TxD A P 2 5 2 4 N A 5 N A 6 OUT ETC B W 11 35 7 OUT ETC A U 24 17 8 N A 9 N A 10 N A...

Page 33: ...B X 9 26 13 23 IN RxC A V 17 8 6 24 IN ID 3 25 IN ID 2 19 8 26 OUT DTR B 23 30 27 OUT DTR A 20 12 28 OUT RTS B 19 25 29 OUT RTS A 4 7 30 N A 31 N A 32 IN ID 1 7 8 33 IN ID 0 B 7 19 8 34 SG B 7 19 8 35 N A 36 N A 37 N A 38 OUT DTR H 39 OUT RTS C 40 OUT LLB J 41 IN DSR B 22 29 42 IN DSR A 6 11 43 N A 44 N A 45 IN CTS B 13 27 46 IN CTS A 5 9 47 N A A 5 ...

Page 34: ...48 IN RxD B T 16 24 11 49 IN RxD A R 3 6 4 50 SG B 7 19 8 A 6 ...

Page 35: ...TA POLARITY DTE DCE DSR DTR OPTION CLOCK INV NORM INV DATA INV NORM INV DCD FOLLOW SYNC DCD ALWAYS ON CTS RTS FOLLOW SYNC CTS RTS ALWAYS ON DSR DTR FOLLOW SYNC DSR DTR ALWAYS ON LOAD DEFAULT YES NO TS00 07 00 0K ALL F_______ TS20 31 00 0K ____________ 31 TS08 19 00 0K ____________ 19 E1 SETUP INTERFACE TYPE E1 SETUP IDLE CODE E1 SETUP LINE CODING E1 SETUP FRAMING E1 SETUP CLOCK SOURCE CLOCK SRC E1...

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