Spectracom SPECT_8140T1051854 电路图.pdf

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1、 Eliminates Periodic Frequency Calibration of Test Equipment For Calibration Lab or Production Test 10-MHz or Custom Outputs Trunk-Line Frequency Distribution Lowers Wiring Costs Unlimited System Size When Daisy Chaining 5-Year Warranty Spectracoms Frequency Distribution System comprises the Model 8

2、140 Distribution Amplifier and combinations of Model 8140T LineTaps, Model 8140MT MultiTaps, and Model 8140VT VersaTaps. The Model 8140 Distribution Amplifier sends accurate frequencies to multiple locations over long distances. The amplifier derives 10 MHz from the input signal, and sends it on the

3、 truck line coaxial cables to up to 25 remote stations. Running a separate cable to each station is not necessary. Input and output signals are monitored. Faults light a visual indicator or activate an optional Audible Alarm. Unlimited numbers of remote stations may receive output from one frequency

4、 standard by adding distribution amplifiers. Remote station LineTaps receive both 10 MHz and DC power from the trunk line cable. The signal is buffered, then converted to the frequency needed at that station. MultiTaps are configurable dividers with three square wave outputs. VersaTaps are single-fr

5、equency synthesizers that provide custom frequency outputs. Frequency Distribution System Distribution Amplifier Model 8140 Spectracom Corporation 95 Methodist Hill Drive Suite 500 Rochester, NY 14623 USA Phone: +1.585.321.5800 Fax: +1.585.321.5218 RadioFans.CN 收音机爱 好者资料库 Frequency Distribution Syst

6、em Model 8140 Specifications FREQUENCY OUTPUT: Four connectors provide 10-MHz sine wave signals to terminated cable via separate buffer amplifiers. Level is 0.5 V rms, 50 ohms, superimposed on +12 VDC. One front panel TTL-compatible output is selectable between 0.1, 1, 5, and 10 MHz. Phase noise is

7、typically less than -130 dB/Hz 1 kHz from the carrier when the distribution amplifer is fed with noise-free 10 MHz. NUMBER OF REMOTE STATIONS: Each Distribution Amplifier will drive up to 25 standard Line Tap loads. If additional loads must be driven, another Model 8140 Distribution Amplifier may be

8、 daisy-chained onto the output of a Line Tap to drive 25 more loads. DISTANCE TO REMOTE STATIONS: Up to 25 LineTaps on RG-58 50-ohm cable at a maximum distance of 1500 feet from base station. Model 8140TA Distribution Line Extender extends this distance to up to 3000 feet with fewer Line Taps allowe

9、d. Using low-loss cable such as RG-8 extends distance to 3000 feet for all 25 Line Taps. AUDIBLE ALARM (Option 20): Activated by input or output loss. FREQUENCY INPUT: 10 MHz; Signal level 0.25 to 3.0 Vrms, 50-ohm impedance. Input options:Input options:Input options:Input options:Input options: 5 or

10、 1 MHz. POWER: 115/230 VAC 15%, 50/60 Hz; 40 W PHYSICAL 4 DC-isolated output terminators included AC power:AC power:AC power:AC power:AC power: 3-prong connector, 7 cord included CONTROLS: Power switch, frequency select INDICATORS: Power, output fault TEMPERATURE: 0 to +50C (32F to 122F) operating r

11、ange -40C to 85C (-40F to 185F) storage range HUMIDITY: 95% R.H.non-condensing SYSTEM ORDERING INFORMATION 1.1.1.1.1.Specify Spectracom Model 8140Model 8140Model 8140Model 8140Model 8140 plus Option 01Option 01Option 01Option 01Option 01 for 19 EIA rack mount Option 07Option 07Option 07Option 07Opti

12、on 07 for 5-MHz input Option 08Option 08Option 08Option 08Option 08 for 1-MHz input Option 20Option 20Option 20Option 20Option 20 for audible alarm 2.2.2.2.2.Specify output taps: Model 8140Txx8140Txx8140Txx8140Txx8140Txx provides fixed sine wave outputs 8140T10= 10 MHz 8140T5= 5 MHz 8140T1= 1 MHz 81

13、40TR1= 0.1 MHz Model 8140MT8140MT8140MT8140MT8140MT provides configurable TTL frequencies. Model 8140VT 8140VT 8140VT 8140VT 8140VT provides fixed custom frequencies. 3.3.3.3.3.Specify any required Line Extenders, 8140TA8140TA8140TA8140TA8140TA. 4.4.4.4.4.When exceeding 25 standard Line Tap loads, (

14、see table) order additional Model 8140 Amplifiers. WARRANTY: 5-Year Warranty Standard Frequency Source Model 8140 Frequency Distribution Amplifier 1.0 MHz All 25 loads may be driven by a single output or distributed among the four outputs. Last tap 1500 maximum from 8140. Any 10-MHz line tap may dri

15、ve another 8140 with 25 more loads. 8140TA Each line tap output may drive a counter or a synthesizer. 5.0 MHz 10.0 MHz 1.544 MHz 2.048 MHz 10 MHz 10 MHz 5 MHz Model 8140T Line Taps Model 8140MT MultiTap Model 8140VT VersaTaps Line Extender 50-ohm DC-isolated terminator (4 pcs. furnished with 8140) F

16、or more information, please contact Spectracom. TAP STANDARD LINE TAP LOAD 8140T1 8140MT3 8140MT-401 8140VT-10-003 8140VT-10-00-401 Specifications subject to change or improvement without notice. Spectracom is a registered trademark. All other products are identified by trademarks of their respectiv

17、e companies or organizations. Copyright 2004 Spectracom Corporation. Printed in USA 1/04 DS8140(C) Frequency Distribution System, Typical Interconnection Diagram Spectracom Corporation 95 Methodist Hill Drive Suite 500 Rochester, NY 14623 USA Phone: +1.585.321.5800 Fax: +1.585.321.5218 RadioFans.CN

18、收音机爱 好者资料库 SPECTRACOM 101 DESPATCH DRIVE EAST ROCHESTER NY 14445 USA +1.585.381.4827 FAX: +1.585.381.4998 Spectracom Corporation 95 Methodist Hill Drive Suite 500 Rochester, NY 14623 USA Phone: +1.585.321.5800 Fax: +1.585.321.5218 VersaTap Model 8140VT The standard VersaTap is a single-frequency syn

19、thesizer whose output is factory-set to any frequency between 1 kHz and 20 MHz. Special frequencies are available, such as the 3.5795454. MHz (TV color subcarrier), 1.544 MHz (T1 data rate), 64 kHz (DS0 data rate), etc. Specify exact frequency at time of order. There are many versions of the VersaTa

20、p not shown here. These include variations in signal frequency, format, voltage level and impedance. For features not listed in the table below, please consult the factory. Synthesizer and Telecom Clock Converter or Extractor Custom Phase-Locked Output Frequency Locks to Input Reference 5-Year Warra

21、nty OUTPUT SPECIFICATIONS OUTPUT FREQUENCY: Factory-set to any 1-kHz increment up to 18 MHz; 2-kHz increments up to 20 MHz. Accuracy equals input accuracy. Consult factory for other frequencies. OUTPUT A: 600 mV rms sinewave into 50 ohms. If unterminated, will drive TTL load. (TTL square wave below

22、56 kHz). Harmonic distortion -35 dBc. OUTPUT B: TTL square wave. RadioFans.CN 收音机爱 好者资料库 PERFORMANCE SPECIFICATIONS INPUT: 10 MHz, 0.1 to 5.5 V p-p; high impedance. For special input frequency or impedance, consult factory. PHASE LOCK INDICATIONS: Indicator lamp is on when output is phase-locked to

23、input signal. An internal jumper converts Output B to a TTL high when Output A is phase locked. POWER: DC power is supplied via the coaxial 10-MHz signal line from a Spectracom Model 8140, or Option 03 Distribution Amplifier. Other power options are: Option 40, external 115 VAC to DC converter Optio

24、n 52, 12 VDC Option 53, 24 VDC Option 54, 48 VDC WARRANTY: 5-Year Warranty PHYSICAL Same Frequency Sine (BNC) 1048DS1 Framed All 1s (310 jack); 1.544-MHz Sine (BNC) 1050Composite Clock (310 jack); 64-kHz Sine (BNC) 1058CEPT Framed All 1s (310 jack); 2.048-MHz Sine (BNC) 1062DS1 Framed All 1s (Termin

25、al Block); DS1 Framed All 1s (Terminal Block) 1066CEPT Framed All 1s (Terminal Block); CEPT Framed All 1s (Terminal Block) DS1 (310 jack)4600User-specified Sine (BNC); 1.544-MHz TTL (BNC) 4645User-specified RS-422 and TTL (9-pin D); Same Frequency Sine (BNC) 4650Composite Clock (310 jack); 64-kHz Si

26、ne (BNC) Dual DS1 (310 jacks)6060Frame Pulse (BNC); Frame Pulse (BNC) CEPT (310 jack)6500User-specified Sine (BNC); 2.048-MHz TTL (BNC) 6545User-specified RS-422 and TTL (9-pin D); Same Frequency Sine (BNC) STS-1 (WECO 560A jack)74004-kHz TTL (BNC);Retransmitted Output (WECO 560A) DS3 (WECO 560A jac

27、k)75004-kHz TTL (BNC);Retransmitted Output (WECO 560A) DS1 (Bantam jack)76004-kHz TTL (BNC);Retransmitted Output (Bantam) CEPT (Bantam jack)77004-kHz TTL (BNC);Retransmitted Output (Bantam) SPECTRACOM 101 DESPATCH DRIVE EAST ROCHESTER NY 14445 USA +1.585.381.4827 FAX: +1.585.381.4998 Spectracom Corp

28、oration 95 Methodist Hill Drive Suite 500 Rochester, NY 14623 USA Phone: +1.585.321.5800 Fax: +1.585.321.5218 PERFORMANCE SPECIFICATIONS OUTPUT FREQUENCY CHOICES: 10, 5, 1, or 0.1 MHz. Specify for each Line Tap. OUTPUT LEVEL: 600 mV rms sine wave into 50 ohms. TTL-compatible when used without termin

29、ation. INPUT SIGNAL: 10 MHz from Model 8140 HARMONIC DISTORTION: -40 dBc REVERSE ISOLATION: 80 dB typical POWER: DC power is supplied via the coaxial trunk line from a Spectracom Distribution Amplifier. PHYSICAL 121 x 44 mm WEIGHT: 1 lb CONNECTORS: BNC - Input tee included TEMPERATURE: 0C to +50C (3

30、2F to 122F) operating -40C to 85C (-40F to 185F) storage HUMIDITY: 95% R.H. non-condensing ORDERING INFORMATION For 10 MHz sine wave output tap, specify 8140T108140T108140T108140T108140T10 For 5 MHz sine wave output tap, specify 8140T58140T58140T58140T58140T5 For 1 MHz sine wave output tap, specify

31、8140T18140T18140T18140T18140T1 For 100 Khz sine wave output tap, specify 8140TR18140TR18140TR18140TR18140TR1 Line Tap Model 8140T MultiTap Model 8140MT PERFORMANCE SPECIFICATIONS FREQUENCY OUTPUTS: Three square wave outputs per MultiTap. 1.5 V p-p into 50 ohms. There are four groups of output freque

32、ncy choices. Once a group is chosen, each of the three outputs may be set to any frequency in the group. For a 10-MHz input, the outputs are: GROUPS 10 MHz10 MHz2 MHz2 MHz 5511 10.50.20.1 0.20.10.040.02 0.040.020.0080.004 FREQUENCY INPUT: Typically 10 MHz. TTL input range is 1 kHz to 20 MHz; sine in

33、put range is 100 kHz to 20 MHz. 300 mV p-p to 5V p-p sine; high impedance. Output frequencies are proportional to input frequency. Coaxial input line must be properly terminated. POWER: DC power is supplied through the coaxial trunk line from a Spectracom Distribution Amplifier. An optional AC/DC ad

34、apter allows the MultiTap to be driven from sources other than a Spectracom Distribution Amplifier. External power must always be used if any output frequencies desired are less than 100 kHz even if used with a distribution amplifier. PHYSICAL & ENVIRONMENTAL CONNECTORS:BNC - Input tee included Powe

35、r: 2.1 mm I.D. DC jack All other physical and environmental parameters are the same as 8140T. ORDERING INFORMATION Specify Model 8140MTModel 8140MTModel 8140MTModel 8140MTModel 8140MT plus Option 40Option 40Option 40Option 40Option 40 for 115 VAC adapter. For more information, please contact Spectra

36、com. Specifications subject to change or improvement without notice. Spectracom is a registered trademark. All other products are identified by trademarks of their respective companies or organizations. Copyright 2004 Spectracom Corporation. Printed in USA 1/04 DS8140TMT(C) 8140MT MultiTap Programmable Divider Selectable Frequency Outputs Stand-Alone Operation Input 115 VAC