Intelligent Timing from World Time Solutions

Syncbox GPS Time Server

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The Syncbox provides secure and accurate timing for industrial control, CCTV and IT systems.

Part Code: Syncbox
gps time server
gps time server server
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time server appliance
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rs-232 master clock
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Key Features

The Syncbox is the ideal timing solution for industrial control, CCTV and IT systems.

Accurate and Secure Network Timing

The high bandwidth NTP/SNTP port provides synchronisation to a large number of devices, enabling secure and accurate timing across your network.

RS-232 and RS-485 Outputs

Synchronise industrial control systems, legacy CCTV systems and other third-party devices using the RS-232 and RS-485 outputs. With user-programmable outputs and support for more than 25 serial data formats, the Syncbox provides a flexible solution to your timing needs.

PPS Output

High accuracy timing of third-party equipment can be achieved via the PPS (pulse per second) output. Class leading performance provides a PPS accuracy of 1 µsec and jitter of 30 nsec.

Standard Output Options

The Syncbox is available as standard in the following three output configurations:

Part No.Outputs
Syncbox-S RS-232 and RS-485 level serial outputs and PPS output
Syncbox-NNTP/SNTP Ethernet output
Syncbox-SNNTP/SNTP Ethernet output, RS-232 and RS-485 level serial outputs and PPS output

Special Order Options

Special order versions are also available offering extended temperature range operation, high voltage isolation outputs, non-standard power requirements, logic level PPS/PPM outputs and a railway installation specific version. Please contact us for further details.


Typical Performance Specifications:
NTP timestamp accuracy: Typically within 30 μsec of UTC
NTP client accuracy: Dependent on network architecture, utilisation, delays and jitter. Clients typically synchronised to within 200 μsec to 2 msec of UTC on a LAN.
NTP performance: 5000 NTP requests per second
RS-232 / RS-485 output accuracy: 50 µsec
PPS output accuracy: 1 µsec
PPS output jitter: 30 nsec
Supported Protocols:
Ethernet protocols: NTP v2 (RFC 1119), NTP v3 (RFC 1305), NTP v4 (RFC 5905), SNTP v3 (RFC 1769), SNTP v4 (RFC 4330), DHCP
Serial protocols: More than 25 serial data formats
I/O Connections:
Ethernet connection:10BASE-T / 100BASE-TX auto-sensing
RS-232 / RS-485 / PPS: DB-9 (DE-9) female D-Sub
Setup:USB 2.0 (full-speed)
GPS antenna: SMA (supplied with active patch antenna and 3m captive cable - Anti-jam antenna kit option available)
Power input:5V DC power input, supplied with external power adapter
Mechanical & Electrical Specifications:
Dimensions:112 x 33 x 92mm (4.4” x 1.3” x 3.6”) (excluding removable wall fixings)
Weight:0.5 kg
Power consumption:0.5 AMPS (@ 5 VDC)
Environmental Specifications:
Operating temperature:0 to 50 ºC
Relative humidity:0% - 95%, noncondensing
Warranty & Support:
Warranty:5 years
Support:Free-of-charge lifetime technical support
Standards Compliance:
Electrical Safety:BS EN 60950-1:2006
Radio Disturbance:BS EN 55022:2006 (class B)
Immunity Characteristics:BS EN 55024:2003

Manuals & Downloads

Listed below are the most up to date documents and files for the Syncbox. Older archived versions are available in the Download section.

Literature: Software:
Syncbox Data Sheet Syncbox Software (version 4.1)
Syncbox User Manual Syncbox Software Release Notes
Antenna Upgrade Kit User Manual Syncbox Control PC software
Syncbox EC Declaration of Conformity
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Options & Accessories

Optional items:

The Syncbox can be optionally supplied with the following items.

Anti-jam GPS antenna kit

Anti-jam GPS antenna kit. Includes anti-jam GPS timing antenna, stainless steel mounting bracket, lightning arrester and connecting cables (1m, 8m, 15m and 25m cable lengths available).


The Syncbox is supplied with an external power adapter, an active patch GPS antenna (with a 3m captive cable), a copy of the Windows Setup application and a pair of detachable wall mounting brackets. Ethernet output versions are supplied with a CAT5 patch cable. Serial output versions are supplied with an RS-232 serial cable.