GPS / GNSS Time Servers
Time Distribution Unit

VCL Products > GPS to IRIG-B, GPS to 1PPS Servers > VCL-2486-G, GPS Receiver: Time Distribution Unit
GPS Receiver: Time Distribution Unit
GPS Receiver: Time Distribution Unit
GPS Receiver: Time Distribution Unit
GPS Receiver: Time Distribution Unit
GPS Receiver: Time Distribution Unit
GPS Receiver: Time Distribution Unit

VCL-2486-G, GPS Receiver: Time Distribution Unit

Get Data Sheet

The VCL-2486-G, GPS Receiver, Time Distribution Unit is designed to provide up to 16 outputs of Pulse and / or NMEA-0183 and / or IRIG-B (mix and match). It is locked to a GPS / GNSS Reference to provide time synchronization to private networks such as Railways and Metro (ticketing and platforms) networks, Airports and Air-Traffic Control facilities, Electric Sub-Stations, Power Distribution and Transmission companies, Oil and Gas Utilities, ISPs and Cable TV networks as well as to Campus networks. The VCL-2486-G is a compact and cost-effective solution to provide up to 16 outputs of 1PPS or NMEA-0183 or IRIG-B.

Features and Highlights:

  • Multi service platform - User selectable output modules
  • Up to 9 User selectable output modules (Add any 4 output cards, in any combination Please specify in order)
    • Up to 16 x IRIG-B Un-Modulated outputs (RS422 - Terminal Block)
    • Up to 16 x IRIG-B Un-Modulated outputs (RS232 - Terminal Block)
    • Up to 16 x IRIG-B Un-Modulated outputs (BNC)
    • Up to 16 x IRIG-B Modulated outputs (BNC)
    • Up to 16 x 1 PPS outputs (BNC)
    • Up to 16 x 10MHz outputs (BNC)
    • Up to 8 x NMEA-0183 outputs (RJ45)
    • Up to 4 x 1PPS optical outputs (ST)
    • Up to 4 x IRIG-B optical outputs (ST)
  • <100ns Accuracy when locked with GNSS (GPS/GLONASS)
  • Leap Second Correction Support
  • DC or AC Power Supply options.

Core unit / Chassis

Core Unit Number of Interfaces Connector
GPS or GNSS (GPS + GLONASS) 1 TNC
Input Power Supply
DC (24V/48V/110 to 220)
AC (100V AC to 240V AC, 50/60Hz)		 1 2 Pin DC Power Connector
3 Pin AC Power Connector IEC60320
Output interface cards Up to 4 User Selectable

GPS/GNSS Receiver Specifications:

  • 50 Channel GPS Receiver/ 72 Channel GNSS Receiver
  • GPS L1 frequency, C/A Code Receiver
  • Tracks up to 12 / 24 satellites in GPS / GNSS mode
  • Synchronizing Time: Hot Start (1 sec.), Warm Start (28 sec.) and Cold Start (28 sec.)
  • GPS Signal: Tracking and Navigation: -162 dBm
  • Accuracy of Time-Pulse Signal referenced to GPS: ± 30ns
  • Accuracy of Time-Pulse Signal referenced to GNSS: ± 20ns
  • Accuracy of Time-Pulse Signal referenced to GPS/GNSS: ± 15ns (compensated)

Antenna Specifications:

  • Antenna Type: Active
  • Frequency Band: 1575.42 MHz
  • Antenna Gain: -30dB
  • VSWR: <2.0 Max, 1.0 Typical
  • Operating temperature: -20C to +65C
  • Reverse Polarity Protection

Synchronization Inputs:

  • 1 x GPS (TNC)

Management and Monitoring:

  • USB Serial Port
  • English Text CLI commands

Power Supply Options:

  • AC (100V AC to 240V AC, 50/60 Hz) or
  • DC (24V DC, 48V DC, 110V DC to 220V DC)

Power Consumption:

  • <10W at ambient (steady state 24°C)

Regulatory Compliance:

  • RoHS, CE Marking
  • Complies to IEEE and IEC standards
  • Transportation ETS 300 019 Class 2.3

Standards & Compliance:

  • IEC - EMC – Certified to EN 55022: 2005 / CISPR 22, EN 55024:2005, IEC 61000-4-2
  • CE – 2001/95/EC, 2006/95/EC, EN60950-1, EN61000-6-2, EN61000-6-4
  • FCC – FCC Part 15 B Class A: Conducted Emission test on Power Line
  • FCC Part 15 B Class A: Radiated Emission >1 GHz FCC, 6 GHz, on Power Line

Available Interfaces:

2488 4 Port x Unmodulated, 50 Ohms IRIG-B Interfaces (BNC F Connector)
2482-P 4 Port x 1PPS, 50 Ohms (BNC F connector) Interfaces
2727-P 1 Port x 1PPS (Optical, Transmitter, 820nm, ST, Tx) interface
2480 4 Port x Modulated IRIG-B (BNC F Connector) interfaces
2444-485 4 Port x Unmodulated IRIG-B [RS485 / RS422] interfaces (8X2 M Terminal Block)
2447-232 4 Port x Unmodulated IRIG-B [RS232] interfaces (8X2 M Terminal Block)
2482-M 4 Port x 10MHz interfaces (BNC F connector)
2727-I 1 Port x IRIG-B (Optical, Transmitter 820nm, ST, Tx) interfaces
2485-N - 2 Port x NMEA (RJ45 F Connector) and
- 2 Port x 1PPS (BNC F Connector) Card (4 Cards (Max) per Chassis)

Application Diagram


Application #1

Application Diagram 1
Application #2

Application Diagram 2


Application #3

Application Diagram 3