Brandywine - FRU-SAASM Frequency Reference Unit - Combination M-Code & SAASM Version
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Ultra-stable GPS Disciplined Frequency Reference
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10 Independent 10MHz outputs
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1U chassis
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Meets MIL-STD-188-164A stability requirements
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Frequency accuracy to 1 x 10-12
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Dual Port NTP Server
The FRU is a state of the art, high-precision frequency standard capable of outputting ten isolated precision 10MHz frequency reference outputs. The FRU uses an internal GPS receiver to control a precision oscillator with accuracy up to 1 x 10-12 and excellent short term stability. The FRU meets the frequency stability requirements of MIL-STD-188-164A for SHF terminals.
A particular feature of the FRU is the ultra-high isolation (>100dB) between the 10MHz outputs, eliminating interaction between 10MHz outputs when they are loaded/unloaded. The FRU incorporates a high-sensitivity 12 channel GPS Receiver.
Dual Ethernet ports are used for both monitoring/control of the FRU using Simple Network Monitoring Protocol (SNMP) as well as providing Network Time Protocol (NTP) to clients.
A Brandywine supplied user application may also be used to provide a Graphical User Interface to the FRU. The FRU is available is a number of configurations to support specific applications.
A Mobile Application version features a special vibration isolated oscillator that provides isolation of the reference source from portable generator induced phase noise. The High Performance version uses a rubidium oscillator.
A Combination SAASM & M-Code GPS receiver is available for military applications.
Variations
| Model Number | Description | Oscillator Type | Power Supply | Form Factor | Power Type | Output Format | Input Format |
|---|---|---|---|---|---|---|---|
| TRU-SAASM | Time Reference Generator with SAASM GPS Input - 1U Rack Mount | OCXO | Single AC | 1U | AC | HQ, 10MHZ, IRIG, 1PPS, NTP | GPS, 1PPS, HQ |
| FRU-SAASM | Frequency Reference Generator with SAASM GPS Input - 1U Rack Mount | OCXO | Single AC | 1U | AC | HQ, 10MHZ, 1PPS, NTP | GPS, 1PPS, HQ |
GPS Antenna Input
| Connector Type | BNC |
1PPS Input
| Connector Type | DB-15 |
| Input Level | 0-10 Vpk |
| Input Impedance | 50 Ω |
Have Quick Input
| Input Level | 0-5 Vpk |
| Input Impedance | 2 kΩ |
10 MHz Output
| Number of Outputs | 10 |
| Output Frequency | 10 MHz |
| Accuracy | 1E-12 (24hr avg.) |
| Output Amplitude | +13 dBm |
| Harmonics | <40 dBc |
| Non-Harmonic | <90 dBc |
| Isolation | <-100dBc when adjacent channel is opened or shorted |
| Phase Noise | See datasheet for details. |
| Phase perturbation | <5mdeg. in 0.2sec |
1PPS Output
| Accuracy | ±50ns |
| Connector Type | DB-15 |
| Output Level | 0-10 Vpk |
| Output Impedance | 50 Ω |
Have Quick Output
| Connector Type | DB-15 |
| Output Level | 0-5 Vpk |
Power
| Power | 90-265 VAC |
| Power Consumption | <15 Watts |
Control and Status
| Connector Type | 10/100 Base T Ethernet |
| Number of Ethernet Ports | 2 |
| Network Protocols | IPV4, IPV6-ready, SNMP v1, NTP v3 |
| Graphical Interface | BWC Application |
GPS Receiver
| Receiver Type | GB-GRAM |
| Frequency | L1, L2 Dual Frequency |
| Satellite Code | C/A, P(Y) |
| Receiver Type | Parallel 12 Channel |
| Position Accuracy | 14m SEP |
| Warm Start | <120 seconds with Almanac, CV loaded |
Reliability
| Mean Time Between Failures | >70,000 hours |
Physical
| Dimensions | 1U Rack mount: 19 in. x 1.72 in. x 14 in. |
Environmental
| Humidity | 95% Non-condensing |
| Temperature | |
| Operating | 0 to +50ºC |
| Storage | -45 to +85ºC |
| Temperature Shock | -20 to +70 ºC 3 ºC/min |
| Vibration | 1.5g peak. 50-2000Hz |
| Shock | MIL-STD-188-164A para. 5.1.2.16.c |
Application
More Product Information
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Versatile GPS Master Clock with IRIG-B reference input
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Dual 10/100BaseT Network interface with Network Time Protocol (NTP)
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Time Code Outputs, IRIG B, IRIG E, Have Quick
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High Stability Ovenized oscillator is standard
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Single string or dual redundant configuration
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IRIG A & B, NASA 36 and 1 PPS inputs
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HaveQuick sync option
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Propagation delay compensation
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Zero latency time reads
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Match time output
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External event time tags
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Three user programmable rates
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Conduction cooled
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Single PC/104 module
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IRIG A, B, NASA 36, 1 PPS sync inputs
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GPS synchronization option
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Have Quick sync input option
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Propagation delay correction
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Zero latency time reads
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Match Time output
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IRIG-B DC time code output
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External Event time tag input
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Three user programmable pulse rates
Brandywine’s RFS-700D is a miniaturized Rubidium Frequency Reference in a compact ruggedized package designed for mounting on a DIN rail system. The RFS-700D is capable of outputting 7x 10MHz frequency reference with low phase noise.
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Network Time Server
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Dual Redundant Version Available
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Complete Remote Network Control using Standard Web Browser
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SA-ASM GPS Receiver
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10MHz, 1PPS IRIG B, Serial and Time Codes
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Timing Accuracy 40ns rms to UTC
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1PPS, Have Quick Inputs
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5 MHz or 10 MHz Outputs Available
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Reference Frequency Input Option
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Auto Changeover with Ref. Input Option
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Low Phase Noise Outputs
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Twenty four Outputs
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Front Panel Status Indicators
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Fault Discrete Inputs
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Compact 1U, 19” rack mount
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1U 19” rack mount
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Dual Redundant hot swappable Power Supplies
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Dual GPS Disciplined Modules
Brandywine - PC104-Plus SyncClock32 Advanced PC/104 timing board that conforms to the PC/104Plus 2.0
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IRIG’s A and B and NASA 36 time code inputs
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+3.3V or +5V signaling
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1PPS Sync input
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External Event (Time Tag) input
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Three programmable pulse rate outputs
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Match Time output
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Industrial Temperature Range option
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Optional on-board GPS option
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Optional HaveQuick input/output
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Optional IRIG B time code output
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Accurate & reliable time data from a trusted source
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Remote configuration and status via web browser, remote monitoring with SNMP
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Synchronization between users – eradicates discrepancies
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System time stamping, such as e-commerce transactions, e-mail sent & received, is highly accurate
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Automatic systems procedures such as backups occur at the correct time and in the correct order
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Additional time signal outputs can feed to other systems
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Multiple time source fall back and priority configuration can ensure high synchronization availability
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Various oscillator choices allow for long holdover to maintain time accuracy when synchronization signals are absent
Brandywine Communications
Brandywine Communications Inc. offers superior products to the time and frequency marketplace. Our mission is to provide the finest equipment coupled with excellent before and after sale service. Our staff of dedicated professionals, based in Tustin, CA, represents over 100 years of collective experience in design, manufacturing and sales of precision time and frequency products. Many of our products are made here in the United States, which allows for quick turnarounds and custom design.
Products from Brandywine Communications range from components such as Oven Controlled Oscillators to complete timing systems like the top of the line High Performance Timing System (HPTS).
Several state-of-the-art time and frequency systems are available from Brandywine. The system product line includes single and dual-redundant models, GPS synchronization and a wide range of oscillator choices: TCXO, OCXO, high-stability OCXO and Rubidium types. GPS choices include both C/A code and SAASM models.
Brandywine also is the premier North American distributor of Oscilloquartz, a subsidiary of ADVA Optical Networking. Oscilloquartz is a premier synchronization supplier for telecommunications for wireline and wireless infrastructures throughout the world. This partnership creates a powerhouse of timing and telecommunications that expand Brandywine's services to their customers in the US and Canada.
We supply several major market segments including: Aerospace, US and Municipal governments, telecommunications, US military, power utilities, financial institutions, test ranges, automotive industry, healthcare and schools.
Brandywine Communications, Inc. is certified as a Small Business Organization with the United States Small Business Administration (SBA’s 8(a) Certification Program) and is registered on the System for Award Management (SAM.gov) website which makes us eligible for all awards or grants specified under this provision.
Contact Details
Brandywine Communications Inc. - Ultra-Precision Time & Frequency
2921 Daimler Street, Santa Ana, CA 92705, USA
Phone: +1-714-755-1050
Email: support@brandywinecomm.com
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