Time Machines TM1000A Installation And Operation Manual
www.css-timemachines.com
GPS Based Network Time Server
TM1000A
“When you absolutely can't afford a time shift”
Installation and Operation Manual
Table of Contents
1 Introduction............................................................................................................................................1
2 Installation..............................................................................................................................................2
2.1 Location..........................................................................................................................................2
2.2 Connections....................................................................................................................................2
2.2.1 Antenna...................................................................................................................................2
2.2.2 Power......................................................................................................................................2
2.2.3 Network..................................................................................................................................2
2.2.4 Front Panel Indications...........................................................................................................2
3 Configuration.........................................................................................................................................3
3.1 Web Page – Default password is “tmachine”.................................................................................3
3.2 Default IP address is 192.168.1.15.................................................................................................3
3.2.1 Network Setup........................................................................................................................5
3.2.2 GPS Lock and Signal Information..........................................................................................5
3.2.3 Use DHCP..............................................................................................................................5
3.2.4 IP Address...............................................................................................................................5
3.2.5 Netmask..................................................................................................................................5
3.2.6 Gateway..................................................................................................................................5
3.2.7 Primary/Secondary DNS Servers...........................................................................................5
3.2.8 MAC.......................................................................................................................................5
3.2.9 Echo GPS Strings Checkbox..................................................................................................6
3.2.10 Serial TTL Level Outputs Checkbox....................................................................................6
3.2.11 Debug Output Checkbox......................................................................................................6
3.2.12 Unit Name.............................................................................................................................6
3.2.13 Password...............................................................................................................................6
4 Troubleshooting.....................................................................................................................................7
4.1 GPS Lock.......................................................................................................................................7
4.2 Finding the IP Address...................................................................................................................7
4.3 Resetting to Factory Defaults.........................................................................................................7
5 Specifications.........................................................................................................................................8
5.1 Time Server Features and Specifications.......................................................................................8
5.2 GPS Module Specifications............................................................................................................8
5.3 Antenna Specifications...................................................................................................................9
Engineered and Manufactured in NEBRASKA, USA
Time Machines is a wholly owned brand of CSS, LLC
Time Machines
6030 South 58th Street, Suite C
Lincoln, NE 68516
402-261-8688
www.css-timemachines.com
Form 1002A
1 Introduction
The Time Machines GPS Network Time Server is a simple to use GPS based time server that will
supply accurate time for all computers and time keeping devices on the network. By placing a time
server on the local network, (S)NTP time packets are provided without requiring systems to go to the
Internet to get a Stratum 1 time synchronization. The system uses an active GPS antenna to maintain
the current time as broadcast by United States GPS satellites. With this device installed on your local
network, there is no longer the worry that if the Internet connection goes down, time synchronization is
lost across the network.
The unit is small and can be placed anywhere within the network layout. The built in high sensitivity
GPS receiver is able to lock multiple satellites from within many buildings or from a window location,
removing the requirement that outdoor antennas be installed.
Setup and use of this time server is straightforward. Simply connect both the included power supply
and the GPS antenna to the base unit and then connect the base unit to the local network. Go to a
computer on the network and browse to the device at its default address to enter the software setup
within the control box. Set parameters to match your network and the system will start to send out time
packets to any device on the system that asks for an update from it. Two servers can be setup to
provide redundancy and more capacity.
When paired with our digital Power Over Ethernet (PoE) clocks, synchronized time is assured no
matter the state of your network, or the state of the internet time server the clocks are pointed to.
Accuracy is also improved because the network delay of the internet is highly variable, while the local
LAN connection is likely sub-millisecond delay.
TimeMachine GPS based time servers are suited to any application where coordination of events at
multiple locations is required. Without coordinated network time, searching for problems across
multiple system logs becomes much more difficult. Education, industrial facilities, military
installations, public safety command rooms, government, broadcasting, and hospitals are all candiates
for synchronized time systems.
Installation and Operations Manual | Page 1
2 Installation
2.1 Location
To receive GPS signals the Time Server's antenna must be located in a location where it can “see” the
sky. The GPS module itself is highly sensitive and able to “see” the GPS satellite signals from within
many structures. Multi-Story or metal structures may block the GPS signals such that the antenna must
be located elsewhere. In these cases, the GPS antenna may be located in a window. The Time Server
box can be located anywhere on the network. All that is required is power and a wired network
connection. In the worst case, an outdoor antenna may be required.
2.2 Connections
2.2.1 Antenna
The GPS antenna is connected through the circular female SMA connector on the rear of the Time
Server. By default, the GPS antenna connection provides 3.3V to power the LNA in the GPS antenna.
This is correct for the supplied GPS patch antenna with the magnetic base. This voltage can be
changed with a jumper on the inside of the Time Server. The Time Server has to be opened up and a
jumper moved.
Jumper J2 Jumper J8
A: 5.0V B: 3.3V (default) A: Reset to Factory B: Normal Operation
The only time this jumper would changed would be to allow use of a different antenna that requires
+5V for the LNA in the antenna. This might be the case for an outdoor installation.
2.2.2 Power
A +5V power supply is supplied with the unit. Connect one end to a standard United States 110120VV outlet and the barrel connector to the rear of the Time Server. The time server will begin trying
to find the GPS satellites. On power-up, synchronization to the GPS satellites will take several
minutes. No battery backup of position is provided to allow for a warm start so the Time Server is
always starting from scratch in determining its location to achieve GPS lock.
2.2.3 Network
Connect the 10/100 RJ45 port on the back of the Time Server to a network connection. Verify that the
network settings are correct for your system. See the configuration section of this manual for more
information on doing this.
2.2.4 Front Panel Indications
The front panel of the Time Server is very basic in its appearance. Three LEDs show the current status
of the unit. The POW indicator indicates that the unit is receiving power through its wall power supply.
The LOCK indication indicates that the GPS has located at least three satellites. The SEC LED will
blink each second showing that the GPS module is now synchronized to the GPS time signals.
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