ES-911E/GPS Master Clock


Master Clock

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The ES-911E/GPS is a GPS (Global Positioning System) Master Clock and Time Code Generator. The unit is specifically designed to meet the NENA (National Emergency Number Association) Standard NENA-04-002 for a PSAP (Public Safety Answering Point) Master Clock and is capable of "Time Synchronizing" all components of a PSAP.

The unit displays six digits of time, legally traceable to UTC (Universal Coordinated Time) as received via the internal 12-channel GPS receiver. Simultaneously, the ES-911E/GPS generates several types of time code - IRIG-B, IRIG-E, ESE, RS232C (both "Broadcast" and "Query" ports provided) and a 1PPS signal. These outputs allow the ES-911E/GPS to synchronize and easily interface with equipment such as CAD, ANI / ALI Controllers, Voice Recorders and Radio Consoles that meet NENA Standards. The ES-911E/GPS can also synchronize computers and other digital / analog clock systems.

Software is supplied with the ES-911E/GPS permitting the user to continuously update a computer's DOS or Windows clock to the GPS time available on the "Broadcast" RS-232C output.

Included with the ES-911E/GPS is an indoor / outdoor antenna that is connected to the unit via the provided 16' cable. If additional cable is required, "low-loss" cable, an "in-line" amplifier (ES-820 or ES-820N for low-loss cable) or, for extra long cable runs where more than one in-line amplifier is used, an "Antenna Power Supply" (ES-AB1) may be required. Consult ESE directly for more information.

  • IRIG-B & IRIG-E outputs
  • RS-232C outputs (Broadcast & Query)
  • RS-485 Broadcast output
  • ESE Time Code output (TC90)
  • 1 PPS output
  • Loss of Power & Loss of Time Sync relay outputs
  • Loss of GPS Signal output
  • IRIG Codes are switchable between Modulated and TTL
  • Automatic Daylight Savings Time correction (may be disabled via internal switch)
  • Time Zone offset
  • Internal 60 minute battery back-up (4 hours display off)
  • "Time Sync" indicator
  • GPS "Lock" indicator
  • 6-Digit, .56" LED display
  • Display switchable between 12 & 24 Hour format
  • +/- 10 Nanosecond accuracy
  • Legally Traceable to UTC (Universal Coordinated Time)
  • Meets or exceeds NENA-04-002 Master Clock specifications
  • Indoor/Outdoor antenna with 16' Cable
  • Rugged Rack Mount enclosure
  • UL Approved power supply
  • Simple operation & installation
  • Digital, Video & Analog slave clocks available