Frequency Electronics, Inc. FEI-Zyfer, Inc.
GPS Time and Frequency Systems
   

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888-886-7465
 


System Features:

IEEE-1588 PTP v2
     Grandmaster Clock

Supports NTP, SNTP,
     Telnet

  Supports IPv4 and IPv6

  100ns accuracy over
      Ethernet

  GPS Receiver:
     
Standard Civil C/A-Code
      (L1) Frequency or
      SAASM GB-GRAM
      C/A-P(Y)-Codes (L1,L2)

  User Interfaces:
     
- RS-232
      - Dual Ethernet 10/100
        (Telnet, SNMP, NTP)
      - Keypad, LCD

  Windows GUI:
     
Zyfer Monitor™

Three I/O Module slots
     for customization

Certification:
    
All units are certified to
     an in-house NIST standard
     traceable to UTC

Support:
     Lifetime support and
     software upgrades included

 
 

PTPSync III Model 391

 
     
  The PTPSync III™ is a compact 1U high, 19" rack mountable GPS time and frequency instrument based on the FEI-Zyfer’s CommSync II® family of time and frequency systems. When requirements call for Precision Time Protocol v2 (PTP v2), where space is at a premium and when redundancy is not required, the modular design of the PTPSync III offers the perfect solution.

The PTPSync III comes configured with either a civil-use GPS receiver, using the C/A signal, or with a military SAASM GPS receiver, using either the L1-P(Y) or the L2-P(Y) signal. The standard off-the-shelf configuration supports the IEEE 1588-2008 (PTP v2) protocol as well as Network Time Protocol (NTP) and SNTP. The PTPSync III provides three I/O module slots for customization of the system using FEI-Zyfer’s hot-swappable option modules. Configurable option modules include IRIG, Have Quick, Programmable Clock Rate, Frequency Synthesizer, Phase Aligned, and Low Phase Noise outputs
(other options available).

There are two RS-232 communications ports and two Ethernet ports on the rear panel for remote system monitoring and control functions. This allows the system to be connected to a control PC or second network for system control and monitoring via Telnet or SNMP
with SSH.

IEEE 1588-2008 is designed for small LANs requiring precise timing and synchronization beyond what can be attained with NTP v4. FEI-Zyfer’s PTP v2 products are fully compliant with the IEEE 1588–2008 (PTP v2) protocol. PTP v2 includes enhancements over previous PTP versions, such as transparent clocks for improved accuracy, fault tolerance, and
faster update rates.
 

 
   
   
   
   
   
   
   
   
   
   
   
   
  Rear Panel View  
     
 

 
 

Comm. Port,
1 PPS, 10 MHz,
Antenna

IEEE 1588-2008 (PTP v2) Output Module and 3 additional
Hot-Swappable Output Option Module Slots

Power Supply
AC or DC

 
     
   Ethernet Specifications (both ports, except as noted)  
     
   Connector Type (2) RJ-45 Auto MDI/MDIX    
   Signal 10/100Base-TX    
   Configuration IPv4, IPv6 address, netmask and gateway selected by user    
   Compatability Ethernet version 2.0/IEEE 802.3    
   SNMP Support MIB2, and FEI-Zyfer custom MIB, SNMPv1, v2c and v3    
   NTP Support Version 1,2, and3, and SNTP    
   PTP Support (Port 0 only) IEEE-1588-2008 (PTPv2)    
   Command Protocol Per FEI-Zyfer Document 385-8002    
       
   Output Specifications (a)  
       
  Frequency Accuracy:  
 
 24 Hour Average  Rubidium Oscillator  Quartz Oscillator
 Locked to GPS  < 1E-12  < 1E-12
 Holdover (b) - first 24 hours  < 5E-11  < 1E-10
 
     
  Time Accuracy: - to UTC, for calibrated units (c)  
 
   Rubidium Oscillator  Quartz Oscillator
 Locked to GPS  < 50ns Peak  < 50ns Peak
 Holdover (b) - first 24 hours  < 3μs  < 7μs
 
     
  Short Term Stability (d) typical:  
 
 Allan Deviation  Rubidium Oscillator  Quartz Oscillator
 1 sec  < 3E-11  < 1E-11
 10 sec  < 1E-11  < 1E-11
 100 sec  < 3E-12  < 1E-10
 
     
  Phase Noise (d) typical:  
 
   Standard Output  Low Noise 5MHz
 1Hz  < -90 dBc/Hz  < -105 dBc/Hz
 10Hz  < -105 dBc/Hz  < -130 dBc/Hz
 100Hz  < -125 dBc/Hz  < -150 dBc/Hz
 1kHz  < -135 dBc/Hz  < -158 dBc/Hz
 
     
   GPS Receiver Options  
     
 
 Standard GPS Receiver - Civil C/A-Code:
 Type:  8 to 12 channel, independent tracking
 Frequency:  1575.42MHz (L1)
 Code:  C/A
 Acquisition Time:  Warm Start: < 2 minutes, Cold Start: < 20 minutes.
 
     
 
 SAASM GPS Receiver - Military P(Y)-Code: (e)
 Type:  12 channel, independent tracking
 Frequency:  1575.42MHz and 1227.60MHz (L1 & L2)
 Code:  C/A and P(Y)
 Acquisition Time:  Warm Start: < 2 minutes, Hot/Cold Start: Dependent on
 Initialization Device
(f).
 Keyload Interface:  DS-102 (Red & Black-key)
 
     
   Standard Input/Output (Rear Panel)  
     
 
 1PPS, 50Ω, TTL level, BNC, Ext. Sync Input  
 RS-232 I/O connector  
 10 MHz, 50Ω, TTL level, BNC connector  
 1PPS, 50Ω, TTL level, BNC connector  
 GPS Antenna, TNC connector  
 
     
   Input/Output Front Panel (SAASM Only)  
     
 
 Keyload Interface - DS-102 (Red & Black-key)
 Hot Start connector (optional)
 Zeroize Button
 
     
   Power Options  
     
 
Several Power Input options are available, including 115/230 VAC 50/60 Hz or 12-48 VDC.
 
     
   Chassis Physical Dimensions  
 
 Height:  44 mm (1.75") (1U)
 Width:  448 mm (17.65) (19" EIA Rack)
 Depth:  381 mm (15.0") including connectors
 Weight:  10 lbs. (max.)
 
     
   Environmental  
     
 
 Operating Temperature:  0° C to 50° C
 Rate of Change:  10° C/Hour
 Storage  Temperature:  -40° C to +85° C
 Relative Humidity:  5% to 95%, non-condensing
 Altitude, Operating:  -60m to 4000m
 Altitude, Storage:  -60m to 9000m
 
     
   Notes:  
     
 
(a) After 24 hours of GPS locked operation, fixed antenna location, antenna delays entered.
(b) After 48 hours of continuous operation.
(c) 2σ (95.5% probability).
(d) Detailed specifications for various output modules: See "Option Module User's Manual 385-8003".
(e) The sale of SAASM receivers is restricted to users authorized by the U.S. Department of Defense.
(f) Dependent on the accuracy of initialization parameters from PLGR or DAGR handheld SAASM GB-GRAM receivers, or other initialization devices.
 
 
     


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