Veracity Timenet User Manual

USER MANUAL

How to use TIMENET

TIMENET is used to provide an accurate atomic clock reference time
to network devices using Network Time Protocol (NTP). TIMENET
receives the reference time directly from the GPS satellite system,

and so is a top level (i.e. Stratum 1) system clock and provides a

legally verifiable time with full traceability.

TIMENET allows CCTV systems (especially DVRs) and Access Control
Systems to be properly synchronised to the precisely correct time,
without using an external Internet connection.

Windows PC

Windows PC

Linux Server

Linux Server

Network

TIMENET

TIMENET

NTP Master

NTP Master

In the example shown a TIMENET unit is used to synchronise three
DVRs, an Access Control system, and both Linux & Windows PCs.

Cable connection diagram

GPS antenna

GPS antenna

Network

ACS

ACS

Reset socket

Reset socket

Network cable

Network cable

DVR 1

DVR 1

DVR 1

DVR 1

DVR 1

DVR 1

3) Set-up and configuration

Copy the TIMENET Config.exe program from the TIMENET USB key
onto a Windows PC and connect the PC to the same network as the
TIMENET. The default IP address of the TIMENET unit is

192.168.42.7 - this is also printed on the serial number label on the
underside of the unit. Configure the network settings of the PC to
the same domain (e.g. 192.168.42.100).

Run the TIMENET Config program. The default IP address will
automatically appear in the IP address field. You can also use the
Scan feature to locate the TIMENET on the your local network if you
are unsure of the IP address. Click on Connect. This will connect to
the TIMENET device. (If the program cannot see the TIMENET,
check your network connection and settings using the PING
command).

new IP settings. This will take a couple of minutes. Be sure to re­set the PC to the new IP domain before re-checking TIMENET
operation. Note that the Time Sync LED on the dialogue above
make take some time to turn from Red to Green, as this is a
function of the NTP system, which requires good signal lock for a
period before properly synchronising with the atomic time
reference.

The TIMENET
program will show
the dialogue as
shown left. The
UTC time will be
shown, as well as
the local time (as
defined by the local
setting of the
Windows time zone).
To change the IP
address setting for
your application,
simply enter the IP
address, Subnet
mask and Gateway.
Click on Apply to
write the settings to
TIMENET. This will
automatically cause
the TIMENET system
to re-boot with the

12V DC Power

12V DC Power

Installation sequence

1) Mounting

The TIMENET unit should only be installed indoors or in an

appropriately rated enclosure.

The GPS antenna should be mounted on the inside of a window
which has at least a partial view of the sky, although the greater
the view of the sky, the faster the GPS lock (see separate antenna
mounting instructions). If the TIMENET unit is to be located on a
wall, then the supplied wall mounting tabs should be slid into the
slots on the side of the case. Note : if these are not fitted already,
the network end plate should be unscrewed and the black plastic
collar removed first, before sliding in the wall mount tabs and re­assembling. The unit should be securely mounted and should not be
supported by the attached cables.

Connect the GPS antenna cable, ensuring that the cable connector is
screwed on.

2) Network & power connection

TIMENET should only be used with a Class II Isolated power

supply.

Connect the network cable and the 12V DC power (also compatible
with 10V-40V DC and 24V AC). The green LED will switch on
immediately to indicate power. During boot-up, the LED will go off,
on, then off again. After a minute or so, the green LED will blink
with short pulses. This indicates normal running with no GPS signal
lock. After a few minutes, assuming the GPS antenna has been
properly mounted and connected, the green LED will switch to a
long pulse, indicating GPS signal lock. Note : depending upon
antenna position, it may take longer to lock onto the signal.

To reset TIMENET to its default IP address, use a paper clip to press
the reset button (see connection diagram). TIMENET will re-boot
with the default IP address.

Note that you can synchronise your Windows PC to TIMENET using
the Internet Time tab of the Windows clock set up dialogue. Enter
the TIMENET IP address in the server field. Click on Update Now,
and check to see that the system synchronises properly. TIMENET is
now acting as an accurate NTP server for your Windows PC.

Software & copyright notices

This manual and the Veracity TIMENET Config application are © Veracity 2007 & 2008.

TIMENET contains open source products released under GPL V2 / NTP license. The relevant
products can be downloaded for free from the following locations, or be provided by Veracity
UK Ltd for a fee, upon request to [e-mail]

uClinux http://www.uclinux.org/
NTP Server http://www.ntp.org/
BusyBox http://www.busybox.net/

Windows is a Microsoft Trademark.

Manufacturer’s declaration of conformity

The manufacturer declares that the equipment enclosed with this certificate conforms with the
essential protection requirements of the EMC Directive 89/336/EEC and has been designed and
manufactured to the following specifications:

BS EN 55022:1998 Emissions (Radiated)
BS EN 55024:1998 Immunity
BS EN 61000-4-2:1995 Immunity to ESD
BS EN 61000-4-3:20002 Immunity to Radiated RF Fields (3V/m)

RoHS

The amber LED indicates network activity.

TIMENET Manual version 1.3