2854S/2855S Digital Analyzers Data Sheet
Contents
1. without notice All trademarks are acknowledged attributes represented by these three icons Parent company Aeroflex Inc Aeroflex 2006 InN f Oo t es t aero f l ex com solution minded performance driven and customer focused Part No 46891 050 Issue 11 10 062. 0 5 0 05 V Space Voltage O V 10 peak NRZ DIGITAL OUTPUT 34 and 140 Mbit s Unframed only with external clock Frequency Range 6 to 160 Mbit s Level TTL or ECL to 50 Mbit s ECL above 50 Mbit s Connector Data main digital output BNC Clock BNC on rear panel TEST PATTERNS Insertion Single Channel Selected 64 kbit s channel of framed signal at 2048 kbit s or 8448 kbit s G 744 Selected 64 kbit s channel of 2048 kbit s tributary 8 34 and 140 Mbit s output or 8448 kbit s G 744 tributary 34 and 140 Mbit s output n x 64 kbit s Channel Selected n x 64 kbit s channel of framed signal at 2048 kbit s or 8448 kbit s G 744 Selected n x 64 kbit s channel of 2048 kbit s tributary 8 34 and 140 Mbit s output Channel distribution can be contiguous or non contiguous 2048 kbit s Tributary Selected 2048 kbit s tributary 8 34 and 140 Mbit s output 8448 kbit s Tributary Selected 8448 kbit s tributary 34 and 140 Mbit s output 34368 kbit s Tributary Selected 34368 kbit s tributary 140 Mbit s output Unframed Unframed signal PRBS 34 and 140 Mbit s 215 1 218 1 2 1 2 1 2 1 2 1 2 1 All zeros Continuous sequence of 0000 All ones Continuous sequence of 1111 Alternating Alternating sequence of 1010 Word User programmable sequence of 24 34 and 140 Mbit s only 16 or 8 bits 8 8 word Two user programmable 8 bit sequences are alternated by an external TTL input The changeov
3. IEEE 488 DC Input 36 to 60 V includes cable EUROCOM D 1 IB6 EUROCOM D 1 IB5 amp IB6 V 11 data rate to 9 Mbits s h e e e e e M Basic options f Additional options CHINA Beijing GERMANY SCANDINAVIA UK Stevenage Tel 86 10 6539 1166 Tel 49 8131 2926 0 Tel 45 9614 0045 Tel 44 0 1438 742200 Fax 86 10 6539 1778 Fax 49 8131 2926 130 Fax 45 9614 0047 Fax 44 0 1438 727601 CHINA Shanghai HONG KONG SPAIN Freephone 0800 282388 Tel 86 21 5109 5128 Tel 852 2832 7988 Tel 34 91 640 11 34 USA y EROFLEX Fax 86 21 5150 6112 Fax 852 2834 5364 Fax 34 91 640 06 40 Tel 1 316 522 4981 FINLAND INDIA UK Burnham Fax 1 816 522 1360 Tel 358 9 2709 5541 Tel 91 80 5115 4501 Tel 44 0 1628 604455 Toll Free 800 835 2352 Fax 358 9 804 2441 Fax 91 80 5115 4502 Fax 44 0 1628 662017 FRANCE KOREA UK Cambridge Tel 33 1 60 79 96 00 Tel 82 2 3424 2719 Tel 441 0 1763 262277 Fax 33 160 77 69 22 Fax 82 2 3424 8620 Fax 44 0 1763 285353 As we are always seeking to improve our products the information in this document gives only a general indication of the product capacity performance and suitability none of which shall form part of any con Ww Ww w a a e r o f I e X s c o m Our passion for performance is defined by three tract We reserve the right to make design changes A passion for performance
4. Range 0 3 to 3 4 kHz Encoding A law for 2048 kbit s u Law for 1544 kbit s Impedance 600 Q balanced Max Input Level 3 dBm0 ERROR INJECTION 34 and 140 Mbit s Target Test Pattern Framing Error Type Binary Bits are inverted before coding Code Code errors are injected by changing 1 to O and O to 1 where the polarity of the inserted mark is the same as the polarity of the last mark transmitted There is no injection into CMI line code at 140 Mbit s Injection Mode Singly By keypress Fixed rate 34 Mbit s 3x10 to 1x10 pattern and code 3x10 to 1x10 frame 140 Mbit s 3x10 to 1x10 pattern 3x10 to 1x107 frame ACCESS TO STRUCTURE BITS 34 and 140 Mbit s Frame alignment strategy Change unassigned distant and alarm bits PCM RECEIVER INTERFACE FRAMING AND BIT RATES As Transmitter Permitted combinations of bit rates As Transmitter Frequency Tolerance As 2850B 2851 PLUS 34368 kbit s 60 ppm 139264 kbit s 60 ppm LINE CODES As Transmitter DIGITAL INPUT Connector BNC Impedance 75 Q unbalanced NRZ DIGITAL INPUT 34 and 140 Mbit s Unframed only Frequency Range 6 to 160 Mbit s Level TTL or ECL to 50 Mbit s ECL above 50 Mbit s Connector Data main digital output BNC Clock BNC on rear panel INPUT MODES AND SENSITIVITY 34 and 140 Mbit s Terminated Terminates the line Sensitivity 1 V 34 Mbit s 0 5V 140 Mbit s nominal 3 dB 12 dB cable attenuation 3 dB 1
5. most of this function ality but limits the data test capability to Codirectional and Contra directional interfaces This Data Sheet therefore contains only those capabilities and specifications which are incremental to 2850B and 2851 PCM Framing Systems 28545 and 28555 are able to generate and receive all commonly used framing systems up to 140 Mbit s for the European digital hierarchy North American rates are also available to 6 Mbit s The instrument can be optioned as European or hybrid versions and this includes a mixed rate version European plus North American Thus 2854S and 2855S have the flexibility to address global applica tions including operation in International Gateways where there is a requirement to test mixtures of European and North American traf fic carried on satellite systems 56 kbit s and 64 kbit s Channel Testing Individual channels within T1 704 2048 8448 G 704 G 744 and G 742 34368 and 139264 kbit s can be tested at 64 or 56 kbit s assisting in testing and fault location within digital data networks and cross connect switches n x 64 kbit s Channel Testing The expanding services at n x 64 kbit s can be tested where they are carried within T1 704 2048 8448 34368 and 139264 kbit s digital signals All systems and n x 64 kbit s cross connect switches are catered for with the flexibility of contiguous and non contiguous channel selection For the very latest specifications visit W WW
6. 8 dB linear attenuation Monitor Connects to a protected monitor point Sensitivity Nominal attenuation of 15 20 26 and 30 dB 3 dB 6 dB cable attenuation 3 dB 12 dB linear attenuation Maximum total attenuation 38 dB TEST PATTERNS Source Single Channel Selected 64 kbit s channel of framed signal at 2048 kbit s or 8448 kbit s G 744 Selected 64 kbit s channel of 2048 kbit s tributary 8 34 and 140 Mbit s input or 8448 kbit s G 744 tributary 34 and 140 Mbit s input n x 64 kbit s Channel Selected n x 64 kbit s channel of framed signal at 2048 kbit s or 8448 kbit s G 744 Selected n x 64 kbit s channel of 2048 kbit s tributary 8 34 and 140 Mbit s input Channel distribution can be contiguous or non contiguous 2048 kbit s Tributary 8448 kbit s Tributary Selected 2048 kbit s tributary 8 34 and 140 Mbit s input Selected 8448 kbit s tributary 34 and 140 Mbit s input 34368 kbit s Tributary Selected 34368 kbit s tributary 140 Mbit s input Unframed Unframed signal PRBS 34 and 140 Mbit s 215 1 21 1 2 1 23 1 2 1 2 1 2 1 Repetitive Word Any word which repeats over a 24 bit 34 and 140 Mbit s only 16 bit or 8 bit sequence CHANNEL EXTRACT For framed single channel and demultiplex operation a selected 64 kbit s channel is extracted from the received signal and output as a data signal or voice frequency signal The audio output is also avail able on the internal loudspea
7. LVDS converter accessory enables BER testing on LVDS interfaces at rates from 6 to 50 Mbit s IN SERVICE AND OUT OF SERVICE MEASUREMENTS 2854S and 2855S are equally suited to both installation and in service maintenance measurements at rates up to 140 Mbit s Interfaces are provided to enable the receiver to be connected to a number of net work points at varying impedances and signal sensitivities including the provision of automatic equalisation automatic line build out ALBO at 2048 kbit s DEMULTIPLEX MONITORING Comprehensive and flexible in service monitoring is provided to enable simultaneous measurement of framing and CRC errors for a complete demultiplex path for 8448 34368 and 139264 kbit s signals At the same time selected 64 kbit s or n x 64 kbit s channels or 2048 8448 or 34368 kbit s tributaries can be monitored for pattern errors whilst analog channels can be monitored using the loudspeaker Both Channel Associated and DTMF Signaling can be monitored within selected 2048 kbit s tributaries and alarms are monitored for the full demultiplex path CHANNEL ACCESS Digital access is provided to transmit and receive timeslots in 704 2048 1544 and 8448 kbit s G 744 digital signals or to 2048 kbit s tributaries within 8448 34368 and 139264 kbit s digital signals Analog access is possible only at 1544 and 2048 kbit s or within 2048 tributaries of 8448 34368 and 139264 kbit s signals Drop and Insert In addition
8. Telecommunications 2854S 2855S vistai snaiyze Digital testers for PCM and data applications up to 140 Mbit s including mux demux PCM and data pattern generator and error detector from 50 bit s to 140 Mbit s Demultiplex and hierarchical errors and alarms monitoring Generate and monitor test patterns framed or unframed at all hierarchical levels within 8 34 and 140 Mbit s signals All data test interfaces as standard RS 232 X 21 X 24 V 35 RS 449 V 36 2855S codirectional contradirectional with EUROCOM optional 2854S and 2855S DS3 and LVDS test interface accessories Data interface and analog channel access G 821 G 921 G 826 M 2100 and G 962 analysis Measurements include propagation delay frequency deviation frequency and level measurement DTMF and CAS DC power and internal battery options Remote control via RS 232 or IEEE 488 with optional PC applications software 2850B and 2851 full functionality The 2855S Digital Communications Analyzer extends the capabilities of the 285X series of analyzers to include support of the latest service offerings from PTTs world wide Testability from data communications interfaces to high speed digi tal links and multiplexes at 2 8 34 and 140 Mbit s in a single portable and battery operated unit provides unrivalled flexibility for support of modern digital and data networks and equipment The 28545 Digital Transmission Analyzer provides
9. a e rofl ex e C O m EROFLEX A passion for performance Tributary Testing 2048 kbit s tributaries within 8448 kbit s digital signals 2048 and 8448 kbit s tributaries within 34368 kbit s digital signals and 2048 8448 and 34368 kbit s tributaries within 139264 kbit s digital signals can be tested to ensure correct functioning of multiplexes Unstructured Where the structures on digital links do not conform to the usual CCITT Recommendations for example inter computer links tests can be performed using an unframed format DATA INTERFACE TESTING All commonly used data interfaces are provided as standard to give a comprehensive data test capability together with primary second third and fourth order PCM rate testing Thus PCM and data cir cuits and equipment can be tested with one compact fully integrated test instrument from 50 bit s to 140 Mbit s Data test interfaces pro vided are RS 232 X 21 RS 449 V 36 V 35 2855S codirectional and contradirectional 28545 and 28555 DTE is standard DCE option al Modes Both synchronous and asynchronous modes are possible with a wide range of standard and user programmable data rates so that tradi tional data interface testing can be addressed together with modern digital data services at 64 kbit s n x 64 kbit s and other rates DS3 INTERFACE TESTING The DS3 POD enables unframed BER testing on DS3 interfaces at 44 736 Mbit s LVDS INTERFACE TESTING The TTL to
10. e 54311 143 RS 449 Adaptor Lead V 10 DCE female 54311 144 V 35 Adaptor Lead DCE female 54311 152 RS 232 Adaptor Lead DCE female 54311 121 RS 232 Lead male to male 25 way D Type 1 5 m 54311 122 X 21 Lead male to male 15 way D Type 1 5 m 54311 147 RS 449 Lead male to male 37 way D Type 1 5 m 82520 RS 449 to RS 530 adapter lead 1 5 m male to male 54311 148 V 35 Lead male to male 37 way D Type 1 5 m 54311 130 Co contradirectional Test Lead 15 way D Type 43129 189 IEEE 488 Lead 46662 387 RS 232 Null Modem female to male 54717 040 Kyosha printer including power supply and data lead 46662 620 Kyosha paper 10 pack 46883 805 Signal Lead balanced CF CF 54311 210 Signal Lead unbalanced BNC BNC For the very latest specifications visit WWW a e rofl ex CO m 46662 388 BNC to 1 6 5 6 adaptor 46884 402 D Type connector 25 way 46662 192 Transit Case 54112 157 Soft Carrying Case 49000 002 Remote Applications Software single user licence 49000 003 Remote Applications Software 20 user licence 46883 852 Null Modem female to female 46883 824 Gender changer female to female 54127 309 Rack Mount Kit 80016 TTL to LVDS Converter 80018 DS3 POD Note that 2854S does not provide RS 232 X 21 RS 449 and V 35 test inter faces 2 8 34 and 140 Mbit s Framed and Mux Demux Add 1544 kbit s T1 Add 704 kbit s Add 704 kbit s T1 T1C T2 No ALBO French key panel 1 6 5 6 Connectors 15 Battery
11. e Errors Bipolar Violations Pattern Errors Framing Errors CRC Errors Data Interfaces Pattern Errors Line Code Errors Measured on input signal For the very latest specifications visit WWW a e rofl ex CO m Framing Errors Measured at each hierarchical level for the demultiplex path selected Pattern Errors Measured for the selected test pattern which can be a tributary 64 kbit s n x 64 kbit s channel or unframed CRC Errors Measured as appropriate for selected input signal or 2048 kbit s tribu taries MAIN PARAMETERS As 2851 ADDITIONAL PARAMETERS As 2851 G 821 ERROR PERFORMANCE As 2851 STORED RESULTS As 2851 PROPAGATION DELAY 34 and 140 Mbit s Range Up to 8 seconds Resolution 1 bit 4 bits at 140 Mbit s Update rate Typically up to 8 seconds SIGNALING BIT RATE MEASUREMENT The bit rate is measured every other second and displayed to the near est 1 Hz or 4 Hz at 140 Mbit s Accuracy 2 ppm 1 count DIGITAL SIGNAL LEVEL MEASUREMENT The amplitude of the incoming digital signal is measured and displayed in Volts peak and dB relative to nominal 34 and 140 Mbit s Range 3 to 40 dB Accuracy 3 to 30 dB 2 dB 30 to 40 dB 3 dB 2 CHANNEL SYNCHRONIZATION MEASUREMENT As 2851 DS3 POD External Accessory Provides DS3 test interface by converting TTL data and clock signals to DS3 signals DS3 signals DS3 Out DS3 In Bit Rate 44 736 Mbit s Line Code B3ZS Transmit Clock Internal R
12. ecovered from the receiver Transmit Frequency Deviation Nominal 50 ppm 50 ppm Signal Format Unframed TTL Connections Transmit Data In Transmit Clock Out Receive Data Out Receive Clock Out Connectors DS3 BNC TTL BNC Power The pod is powered from a mains supply accessory TTL to LVDS CONVERTER External Accessory Provides LVDS test interface by converting TTL data and clock signals to LVDS signals Signals Transmit Data Out Transmit Clock In Receive Data In Receive Clock in Bit Rate 6 to 50 Mbit s Connectors TTL BNC LVDS 37 Way D type ISO 4902 LVDS Pinout Signal Pin Transmit Data Out 6 24 Transmit Clock In 8 26 Receive Data In 4 22 Receive Clock In 17 35 Power 5 V taken from 25 Way D Type Auxilliary connector GENERAL CHARACTERISTICS As 2851 except IEEE 488 Option Used for remote control or printer operations ELECTROMAGNETIC COMPATIBILITY Conforms with the protection requirements of the EEC Council Directive 89 336 EEC Conforms with the limits specified in the following stan dards IEC EN61326 1 1997 RF Emission Class B Immunity Table 1 Performance Criteria B Safety Conforms with the requirements of EEC Council Directive 73 23 EEC as amended and the product safety standard IEC EN 61010 1 2001 C1 2002 C2 2003 for Class 1 portable equipment for use in a Pollution Degree 2 environment The instrument is designed to be operated from an Installation Category 1
13. er occurs at the end of 8 bits not at 34 or 140 Mbit s 1 kHz O dBm0O sine wave Digital representation of a sinusoidal signal of 1 kHz at a nominal level of O dBmO coded according to A Law inserted into single channel This facility is available for 704 and 2048 kbit s systems only FILL PATTERNS All other channels in single channel and n x 64 kbit s framed operation PRBS 2 1 User programmable 8 bit word 34 and or 8 and or 2 Mbit s tributaries All 1s All Os PRBS Alternating 10 Copy of 2 or 8 or 34 Mbit s test signal For the very latest specifications visit WWW a e rofl ex CO m EXTERNAL VOICE and DATA For framed and multiplex operation an externally input 64 kbit s data stream or a voice frequency signal can be inserted into one of the channels in the transmitted signal instead of a test pattern Data Input Applies to frame structures at 704 1544 2048 and 8448 kbit s G 704 G 744 Applies to 2048 kbit s tributaries within frame structures at 8448 kbit s G 742 34 and 140 Mbit s G 751 and 8448 kbit s G 744 tribu taries within 34 and 140 Mbit s Data Input Interface Codirectional to G 703 Contradirectional to G 703 AMI 100 or Bipolar NRZ X 21 RS 449 V 36 V 35 using DCE adaptor cable accessory NRZ TTL level VOICE FREQUENCY INPUT Applies to frame structures at 1544 and 2048 kbit s Applies to 2048 kbit s tributaries within frame structures at 8448 kbit s G 742 34 and 140 Mbit s G 751
14. ker Data Output Applies to frame structures at 704 1544 2048 and 8448 kbit s G 704 G 744 Applies to 2048 kbit s tributaries within frame structures at 8448 kbit s G 742 34 and 140 Mbit s G 751 and 8448 kbit s G 744 tribu taries within 34 and 140 Mbit s Data Output Interface Codirectional to G 703 Contradirectional to G 703 100 AMI or Bipolar NRZ X 21 RS 449 V 36 V 35 using DCE adaptor cable accessory NRZ TTL level Frame or AlS alarm detected All 1 s transmitted Signal loss detected Outputs are off Clock output 64 kHz TTL Voice Frequency Output Applies to frame structures at 1544 and 2048 kbit s Applies to 2048 kbit s tributaries within frame structures at 8448 kbit s G 742 34 and 140 Mbit s G 751 Range 0 3 to 3 4 kHz Decoding A Law for 2048 kbit s Law for 1544 kbit s Impedance 600 Q balanced STATUS INDICATORS A combination of LEDs and an alarm page indicate frame structure alarm conditions for the input signal and for demultiplex operation the tributaries selected For Demux mode hierarchical AIS FRAME and DISTANT alarms are ORed to the LED indicator UNASSIGNED FRAMING BITS The state of the unassigned bits is displayed DATA TEST INTERFACES X 21 X 24 RS 449 V 36 V 35 and RS 232 As 2851 2855S only TEST PATTERNS As 2851 ERROR INJECTION As 2851 ALARMS As 2851 SYNC OUTPUTS As 2851 ERRORS OUTPUT As 2851 MEASUREMENTS ERROR TYPES PCM Interfaces Line Cod
15. or 2 supply POWER REQUIREMENTS AC Operation AC Voltage 230 V nominal 190 to 264 V 115 V nominal 90 to 120 V Frequency 45 to 66 Hz Consumption 80 VA maximum DC Operation Option 48 V Range 36 to 60 V Battery Operation Option Operating time 1 hours with backlight timeout of 5 minutes for temperature range of 17 to 27 C Charge time 15 hours Temperature range for full nominal charge 10 to 30 C Temperature range for full nominal discharge O to 50 C Limit range of operation Charge O to 35 C Discharge O to 50 C Weight of battery 2 7 kg INSTRUMENT DIMENSIONS AND WEIGHT Height Width Depth Weight 197 mm 345 mm 477 mm 8 kg VERSIONS AND ACCESSORIES When ordering please quote the full ordering number information Ordering Numbers Versions 28545 Digital Transmission Analyzer 28555 Digital Communications Analyzer Supplied Accessories 43129 003 Supply Lead 41690 485 Stowage Cover 46884 604 Audio Jack Plug Quantity 2 46884 403 15 way D Type Connector 54311 125 X21 Adaptor Lead V 11 DTE 54311 127 RS 449 Adaptor Lead V 11 DTE 54311 131 V 35 Adaptor Lead DTE 46882 128 Operating Manual 46882 127 Introductory Guide Optional Accessories 46880 004 Service Manual 54311 126 X21 Adaptor Lead V 10 DTE female 54311 140 X21 Adaptor Lead V 11 DCE female 54311 141 X21 Adaptor Lead V 10 DCE female 54311 128 RS 449 Adaptor Lead V 10 DTE female 54311 142 RS 449 Adaptor Lead V 11 DCE femal
16. or local printing Keyboard functions can be duplicated via RS 232 enabling complete remote reconfigura tion and reporting of results IEEE 488 GPIB TEEE 488 can be specified as an option in addition to the standard RS 232 for factory test and laboratory applications or where IEEE 488 is preferred POWER OPTIONS In addition to mains power options are provided for battery and DC power to cater for all operational requirements including factory exchange and field SPECIFICATION PCM TRANSMIT INTERFACE FRAMING AND BIT RATES As 2850B 2851 PLUS 34368 kbit s G 751 asynchronous 139264 kbit s G 751 asynchronous Permitted combinations of bit rates 2048 amp 8448 amp 34368 amp 139264 kbit s or 704 amp 2048 amp 8448 amp 34368 amp 139264 kbit s or 1544 amp 2048 amp 8448 amp 34368 amp 139264 kbit s or 704 amp 2048 amp 8448 amp 1544 amp 3152 amp 6312 amp 34368 amp 139264 kbit s AlS Unframed all ones signal CLOCK SOURCE Internal external or derived from the received signal Internal 34 and 140 Mbit s Accuracy 2 ppm from 0 C to 55 C Offset 100 ppm External Unframed and Multiplex Clock BNC connector Range 6 MHz to 160 MHz Interface Sine or square wave ECL TTL Impedance 50 Q CLOCK OUTPUT TTL or ECL into 75 Q LINE CODES CMI AMI 50 duty cycle HDB3 NRZ MAIN OUTPUTS 34 and 140 Mbit s Unbalanced Impedance 75 Q Peak Voltage 34 Mbit s 1 0 V 0 1 V 140 Mbit s
17. to checking error performance of selected 64 kbit s and n X 64 kbit s channels with transmitter and receiver operating inde pendently a Drop and Insert configuration can be adopted for 704 2048 and 1544 kbit s systems so that 64 kbit s and n x 64 kbit s chan nels can be tested with minimum disruption of service to other in traffic channels External Access Access is provided on front panel connectors to selected transmit and receive channels at both analog and digital levels for first second third and fourth order digital signals Thus if required external ana log or digital test equipment can be connected to make specific chan nel measurements beyond the capability of 2854S and 2855S TERMINAL EQUIPMENT TESTING 28545 and 28555 are able to simulate and detect alarm conditions associated with the various framing systems so that terminal equip ment can be tested for correct operation This includes the ability to generate programmable Frame or Code Errors to check equipment thresholds It is also possible to test across multiplexes by inserting and monitor ing test patterns within 2048 8448 and 34368 kbit s tributaries In addition there are automatic test sequences for checking Frame and Multiframe Alignment Strategy and access is allowed to control and display the condition of all unassigned frame bits RS 232 REMOTE OPERATION Remote unattended operation can be accomplished via an RS 232 port which can also be used f
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