TIMING, TEST & MEASUREMENT 5087B Wideband Distribution Amplifier High output-to-output isolation and output- KEY FEATURES INTRODUCTION • The 5087B Wideband Distribution amplifier to-input isolation keeps the effects of “acci- 12 Channel Wideband Sine Wave dents” from propagating to other channels Distribution is an economical solution for distributing signals from various frequency standards or upstream to the frequency standard. For • +13 dBm to +22.5 dBm Adjustable example, if an output is accidentally shorted such as Caesium, Rubidium, Quartz or GPS Output Power receivers. or someone connects an active signal to the • Accepts +3 to +22.5 dBm Inputs output of the distribution amplifier, the effect APPLICATIONS is minimized on any other output. • Input AGC Maintains Output Level with Frequency standards typically have few Varying Input Level outputs, each of which drives one load over FAULT MONITORING • High Isolation/Low Cross-talk Front panel lights allow you to check status short distances. When you have many devices Between Outputs requiring frequency reference inputs, or you of the amplifier at a glance. Indicators are • provided for power, alarm, input, and all 12 Low Additive Phase Noise need to deliver the frequency standard output from one building to another, the 5087B is outputs. • Front Panel Status Indicators for the right choice. Health Monitoring at a Glance An alarm occurs whenever there is loss of • Ethernet Port for Remote Control and input signal, or loss of any of the 12 outputs. • Standards lab – simultaneous calibration Monitoring of multiple test equipment. The alarm signal can be connected to audible or visible alarms, or logically “Ored” to • Fault Alarm Output • Manufacturing and R&D – connecting all other alarms. test equipment in a rack to the same frequency source. Full remote control and monitoring of the amplifier can be done through the Ethernet • Intra-building distribution – distributing port, including checking status and alarm conditions. frequency standards from the cal lab to manufacturing and R&D. 5087B Wideband Distribution Amplifier 5087B Specifications ENVIRONMENTAL SPECIFICATIONS • Temperature ELECTRICAL SPECIFICATIONS Operating: 0°C to +50°C • Inputs Non-operating: -62°C to + 75°C Number of inputs: 1 • Humidity Frequency range: 1 to 10 MHz Operating: 95% non-condensing, 40°C Signal type: Sine wave • Altitude Connector: Rear panel BNC (female) Operating: 15,000 ft Shield is chassis (earth) ground • Amplitude: 0.3 Vrms to 3 Vrms Automatic Level Control Shock: Meets IEC 60068-2-27 requirements Impedance: 50Ωnominal • Vibration: Meets IEC 60068-2-6 for sinusoidal vibration 1 Input status : Front panel indicator and IEC 60068-2-64 for random vibration Damage level: +24 dBm requirements. VSWR: <1.5:1 • EMC: Meets EN61326-1:2001 2 • Frequency outputs (into 50Ω) Electrical Requirements for Electrical Number of outputs: 12 Equipment for Measurement, Control and Frequency range: 1 to 10 MHz Laboratory use- Part 1: General Requirements Signal type: Sine wave EN 55011 Class A, Radiated Emissions. Connector type: Rear panel BNC (female) • Safety: Meets EN61010-1:2001 Shield is chassis (earth) ground Safety Requirements for Electrical Equipment 3 Amplitude : 1 Vrms to 3 Vrms adjustable for Measurement, Control and Laboratory use- Impedance: 50Ωnominal Part 1: General Requirements. 4 Harmonics : <-40 dBc UL/CSA Certified product Spurious 10 Hz - 50 kHz: <-80 dBc 5 Channel status : Front panel indicator SUPPLEMENTAL CHARACTERISTICS Single sideband additive phase noise (1 Hz bandwidth) 10MHz carrier • Mechanical characteristics Offset frequency Phase Noise (dBc/Hz) Net weight: 6.2 kg 1 Hz -110 Shipping weight: 10 kg 10 Hz -123 Dimensions 100 Hz -128 Height: 90 mm (2U rack) 1 kHz -144 Width: 450 mm (standard 19-inch rack) 10 kHz -150 6 Depth: 364 mm (excluding connectors) Isolation • Power requirements Output to output: <-104 dBc (typical) 7 Output to input: <-100 dBc AC input : 100-240 VAC; 50 to 60 Hz VSWR: < 1.5:1 • Warranty: 1 year, return to Symmetricom • Alarm port Connector type: BNC NOTES Normal state: TTL high 1. Input status indicates if input amplitude drops below 0.3 Vrms. It does not Alarm state: TTL low indicate signal quality (frequency accuracy or stability) nor wave shape. Output configuration: Open-collector, 10k Ohm pull-up to 5 Vdc 2. All outputs are always active. To reduce noise, connect a 50Ω terminator Alarm conditions: Loss of input signal, activation of input (not supplied with unit) on unused outputs. alarm, loss of any of 12 frequency outputs. 3. An ALC circuit on the input amplifier assures output amplitude consistent with Status: Front panel LED desired setting in the range 1 to 3 Vrms, into 50Ω. • Remote interface 4. Assumes harmonic distortion of <-50dBc of input signal. Data communications: Ethernet (10 Base T) 5. Output channel status indicates if output drops below 0.3 Vrms (+2.6 dBm) at Connector type: RJ-45 the output BNC connector, not at the end of the attached cable. 6. Output isolation is measured by injecting 900 Hz signal (0.5Vpp about 20us wide) into an output port and measuring the associated phase noise spur at 900 Hz offset on adjacent output ports and input port. 7. Auto sensing AC mains supply. A “power on” LED is located on the front panel. Rear view SYMMETRICOM, INC. 2300 Orchard Parkway San Jose, California 95131-1017 tel: 408.433.0910 fax: 408.428.7896 info@symmetricom.com ©2007 Symmetricom. Symmetricom and the Symmetricom logo are registered trademarks of Symmetricom, Inc. All specifications subject to www.symmetricom.com change without notice. DS/8057B/D/0907/PDF