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Products > Master_Clocks

Master Clocks

   

A master clock can be known as a reference clock, time standard, network clock, authoritative time source, sync clock, or atomic clock.

But the function is the same: to keep timing systems and secondary clocks (slave clocks) running consistently to improve performance. A Spectracom master clock offers the additional advantage of accuracy and traceability to national and international standards by using GPS and other atomic time sources. NetClock® and Epsilon Clock™ master clocks have been optimized for the specific requirements of many applications and industries including vital communications and command centers, such as 9-1-1 and other public safety answering points (PSAP), aerospace and defense, and telecommunications and broadcasting.
 
Master Clock Comparison Chart
  network time server network time server GPS clock module GPS clock module   GPS Clock Redundant GPS clock
  Time & Frequency Server Network Time Server Compact GPS Clock GPS Clock GPS Clock GPS Clock Redundant GPS Clock
Model 9383 9389 EC1S EC2S EC20S EC31M EC22S
Timing Reference GPS, IRIG-B, Modem, 1PPS, NTP, (optional SAASM GPS) GPS, E1, 10 MHz GPS, 1PPS GPS, 1PPS, NMEA GPS, 1PPS NMEA, IRIG-B GPS, 1PPS, NMEA
Internal Oscillator TCXO (optional OCXO, Rb) OCXO OCXO (optional Rb) OCXO
Outputs NTP, ASCII time code, alarm, timer, IRIG-B/E, 1PPS, 10 MHz NTP, ASCII time code, alarm, timer 10 MHz, 1PPS, NMEA (4x) 10 MHz, 1PPS, ASCII time code NTP, (7x) 10 MHz, (7x) 1PPS, NMEA, alarm (2x) NTP, (2x) 1PPS, (2x) 10 MHz, IRIG-B, NMEA NTP, 8x 10 MHz, 8x 1PPS, NMEA
Optional outputs contact factory     Additional 1PPS, E1, STANAG, HaveQuick, IRIG-B, other frequencies Additional (3x) 10 MHz, (3x) 1PPS    
Front panel display 2 2 optional   Y     Y
Network management Y Y     Y Y Y
Features Network & security features   Front panel interface with EC3S version Optimized for digital broadcast signals & BTS Time-stamping 4 external inputs 2 redundant hot-swapable clock modules
 
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Models
time and frequency server
NetClock Model 9383
Full-featured NTP server with timing and frequency outputs
network time server
NetClock Model 9389
Full-featured NTP server
GPS clock module
Epsilon Clock EC1S
Precision time and frequency module ready for integration
GPS master clock
Epsilon Clock EC2S
Precision time and frequency
GPS master clock
Epsilon Clock EC20S
Precision time and frequency with remote management
dual channel master clock
Epsilon Clock EC31M
Master clock with dual outputs and time-stamping of external events
redundant master clock
Epsilon Clock EC22S
Redundant GPS clocks optimized for broadcast applications
telecom master clock
Epsilon Clock EC2T
Master clock with T1 (2.048 MHz) outputs
 
   
Special Models
FAA master clock
FAA-Approved Time-of-Year Clock
Synchronizes FAA IRIG-B systems and computer networks. Replaces GOES TOY clock
 
   
Discontinued
Complete list of discontinued products
 
NetClock Master Clock Model Descriptions:
 
NetClock® Model 9383 GPS Master Clock
master clock model 9383
  • Stratum-1 GPS primary time source
  • 10/100 Base-T LAN port
  • Time codes via two RS-232 serial ports, two RS-485 data bus ports
  • IRIG B/E AM/TTL
  • 1 PPS and 10 MHz
  • Optional Rubidium or OXCO oscillator back-up for GPS
  • Optional modem as back-up or primary
  • Meets NENA master clock standard
  • RoHS/UL compliant


 
NetClock® Model 9389 GPS Master Clock
master clock model 9389
  • Stratum-1 GPS primary time source
  • 10/100 Base-T LAN port
  • Time codes via RS-232 serial port and RS-485 data bus port
  • Optional front panel displays
  • Optional modem as back-up or primary
  • RoHS and UL compliant
  • Ideal for synchronizing computer networks


 
FAA-Approved Time-Of-Year Clock Model 8183A
8183A_NetClock_Master_Clock
  • GPS clock synchronizes FAA IRIG-B systems and computer networks
  • RS-232 FAA IRIG B time code output port providing four separate outputs
  • Replaces GOES TOY clock
  • Front panel Time of Year (TOY) selectable clock display
 
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Epsilon Clock Model Descriptions:
 
Epsilon Clock™ Model EC1S GPS Clock
EC1S_thumb.jpg
  • Compact GPS clock module
  • 10 MHz, 1PPS, time of day output
  • Choice of 3 OCXO oscillator options
  • RoHS compliant
 
Epsilon Clock™ Model EC2S GPS Clock
EC2S_thumb.jpg
  • 19" rack mount (1RU high)
  • 1PPS (up to x4), 10 MHz (4x)
  • Optional outputs: 1 MHz, 5 MHz, frequency synthesizer, 2048 KHz, 2048 Kbit/s, IRIG-B, STANAG 4430 (Havequick)
  • 2 OCXO and Rubidium oscillator options
  • RoHS compliant
 
Epsilon Clock™ Model EC20S GPS Clock
EC20S_thumb.jpg
  • 19" rack mount (1RU high)
  • 1PPS (up to x10), 10 MHz (up to 10x)
  • Remote management by SNMP/HTTP 
  • OCXO and Rubidium oscillator options
  • RoHS compliant
 
Epsilon Clock™ Model EC3S GPS Clock
EC3S_thumb.jpg
  • 19" rack mount (2RU high)
  • 1PPS, 10 MHz (4x)
  • Optional outputs: 1 MHz, 5 MHz, frequency synthesizer, 2048 KHz, 2048 Kbit/s, IRIG-B, STANAG 4430 (Havequick)
  • Rubidium oscillator
  • User interface by keypad and front panel display
 
Epsilon Clock™ Model EC22S Redundant GPS Clock
EC22S_thumb.jpg
  • Dual hot-swapable GPS clock modules
  • Stratum-1 NTP time server
  • Up to 8 x 1 PPS TTL outputs
  • Up to 8 x 10 MHz outputs
  • Remote management by SNMP/HTTP
  • Choice of 3 OCXO oscillator options
  • RoHS Compliant
 
Epsilon Clock™ Model EC31M Stand-Alone Master Clock
Stand-alone master clock with dual outputs
  • Dual outputs: 1PPS/10 MHz
  • Dual isolated LAN ports for NTP server and/or management
  • IRIG-B ouput
  • time-stamping of external events (4x)
  • User-selectable, prioritized references: GPS, NMEA/1PPS, IRIG-B
  • OCXO or Rb oscillator
  • RoHS Compliant

 

  
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