Omicron Lab OTMC 100 User manual

Smart Measurement Solutions®
OTMC 100
Quick Start Guide

Manual Version: ENU 1066 03 01
© OMICRON Lab 2019. All rights reserved.
This user manual is a publication of OMICRON electronics GmbH.
This user manual represents the technical status at the time of printing. The product information,
specifications, and all technical data contained within this user manual are not contractually binding.
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configuration without announcement. OMICRON electronics is not to be held liable for statements and
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user manual and its results. OMICRON electronics explicitly exonerates itself from all liability for
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OTMC 100 Quick Start Guide
2OMICRON

Contents
1 Introduction ...................................................................................................................... 4
1.1 About this Quick Start Guide .............................................................................................. 4
1.2 About OTMC 100 ............................................................................................................... 4
1.3 General safety instructions ................................................................................................. 4
2Device overview ............................................................................................................... 6
3Mounting ........................................................................................................................... 8
3.1 Safety instructions .............................................................................................................. 8
3.2 Suitable mounting positions ............................................................................................... 8
3.3 Mounting instructions ......................................................................................................... 10
3.3.1 Mounting instructions for mast mounting ........................................................................................... 10
4 Connecting OTMC 100 to an Ethernet network ............................................................. 12
5 Accessing OTMC 100 from a Computer ......................................................................... 14
5.1 System requirements ......................................................................................................... 14
5.2 Accessing the OTMC 100 web interface ............................................................................ 14
6 Troubleshooting ............................................................................................................... 18
6.1 Performing a factory reset (reset to factory defaults) ......................................................... 19
7 Open Source software license information ................................................................... 20
Support .............................................................................................................................. 21
Contents
OMICRON 3

1 Introduction
1.1 About this Quick Start Guide
This OTMC 100 Quick Start Guide provides short information on how to install and access OTMC 100.
It is intended as an aid for the user to install OTMC 100 and take it into operation quickly and easily.
The OTMC 100 Quick Start Guide thus provides only a small subset of information available for
OTMC 100. It cannot substitute the OTMC 100 Series User Manual.
Therefore, also read the OTMC 100 Series User Manual which is available in PDF format on the
CD ROM delivered with OTMC 100 in addition to this Quick Start Guide. The OTMC 100 Series User
Manual provides extensive and more detailed information about OTMC 100, its installation and
intended use, and how to configure and operate it.
1.2 About OTMC 100
OTMC 100 is an antenna-integrated GPS controlled time reference. It provides high-precision time to
synchronize intelligent electronic devices (IEDs), computers and measurement equipment in Ethernet
(TCP/IP) based networks. The OTMC 100 series products can be used as a PTP (Precision Time
Protocol) grandmaster clock according to the IEEE 1588-2008 standard and as an NTP (Network
Time Protocol) time server for NTPv4 compliant equipment according to RFC 5905.
OTMC 100 is designed for outdoor use in lightning protected areas. It is intended for fixed installation
on masts. For installation requirements, please refer to chapter "Mounting" on page 8 or to the
OTMC 100 Series User Manual.
1.3 General safety instructions
Before operating OTMC 100, carefully read the following general safety instructions:
•OTMC 100 may only be used in a safe technical condition taking into account its defined purpose,
safety requirements and possible risks as well as the operating instructions given in the
OTMC 100 Series User Manual.
•OTMC 100 is exclusively intended for the application areas specified in chapter "Introduction and
designated use" of the OTMC 100 Series User Manual. The manufacturer or the distributors are
not liable for damage resulting from unintended usage. The user alone assumes all responsibility
and risks.
• Do not open OTMC 100. Opening the device invalidates all warranty claims.
OTMC 100 Quick Start Guide
4OMICRON

•OTMC 100 is an SELV device (Safety Extra Low Voltage) which is supplied with power by Power
over Ethernet (PoE according to IEEE 802.3af). It may only be connected to Ethernet network
ports or Power over Ethernet power supplies.
• Always use the waterproof RJ45 Ethernet connector supplied with OTMC 100 in order to maintain
the watertightness of the device. Do not use OTMC 100 outdoors without a waterproof connector
inserted.
• For outdoor installation always use a shielded Ethernet cable. The cable shield has to be
connected to the shield of the Ethernet connectors.
Introduction
OMICRON 5

2 Device overview
36 mm
2 threaded holes
for clamping block
M6 x 9 mm
Waterproof RJ45 connector
acc. to IEC 61076-3-106,
variant 4
LED
Protective cap
Base plate
106.2 mm
Ø 115.5 mm
14.5 mm
Threaded hole
1/4" BSW x 6.5 mm
for temporary mounting
on a stand
Membrane vent covering the pushbutton
(tightening torque: 0.6 - 0.8 Nm)
Type plate with
product name
and serial number
Degree of protection:
IP67 (for outdoor use) if the waterproof
RJ45 connector is inserted properly
Weight: < 500 g
OTMC 100 does not provide an ON/OFF switch. The device automatically powers up after supply
voltage is provided via Ethernet (PoE).
The LED indicates the device status:
LED continuously off OTMC 100 is not supplied with power via the RJ45 Ethernet connector
(→ see Troubleshooting on page 18).
LED lights red Boot process during power-up or device reboot is in progress.
LED flashes red Software update is in progress.
ATTENTION: Do not disconnect OTMC 100 from its PoE source (Ethernet
network) during a software update.
LED lights orange Intermediate state when initiating a factory reset.
LED flashes green OTMC 100 is in the recovery mode, waiting for new software. In the
recovery mode, the device provides only a rudimentary web interface just
allowing for the upload of a software image.
LED lights green OTMC 100 is ready for operation.
OTMC 100 Quick Start Guide
6OMICRON

The pushbutton can be accessed after unscrewing the water-tight membrane vent (tightening torque:
0.6 to 0.8 Nm).
Membrane vent
detached
Pushbutton
LED
Pushbutton
The pushbutton can be used to:
• Initiate a factory reset to reset the device configuration to the factory defaults (→ see
Troubleshooting on page 18).
• Initiate a device reboot (→ see "Performing a reboot of OTMC 100" in the OTMC 100 Series User
Manual).
Device overview
OMICRON 7

3 Mounting
3.1 Safety instructions
A position with good view to the sky will usually be located in a lightning endangered zone outside of a
building. OTMC 100 must not be exposed to direct lightning strokes and thus has to be protected
sufficiently. Therefore, OTMC 100 has to be mounted in an area protected by a lightning protection
system according to the relevant standards and regulations. The user is responsible for sufficient
lightning protection of the device and the observance of all lightning protection regulations relevant for
the site of installation.
Always use the waterproof RJ45 Ethernet connector supplied with OTMC 100 in order to maintain the
watertightness of the device. Do not use OTMC 100 outdoors without a waterproof connector inserted.
CAUTION
Risk of injury or damage due to high voltages caused by lightning stroke.
► The installation of OTMC 100 and the implementation of lightning protection
measures have to be performed by accordingly qualified experts.
► Always observe all relevant lightning protection regulations.
► The local lightning protection regulations and the protection concept of the building
and the electrical installation may require a suitable surge protection device for the
Ethernet network cable leading into the building.
► For outdoor installation always use a shielded Ethernet cable. The cable shield has
to be connected to the shield of the Ethernet connectors.
3.2 Suitable mounting positions
OTMC 100 receives the time information from the satellites of the GPS system. However, GPS
reception generally requires a plain line of sight between the antenna and the satellites.
For proper function, OTMC 100 requires signal reception from at least 4 GPS satellites. The more
satellites it can receive, the more reliable the time information OTMC 100 can deliver.
OTMC 100 should generally be mounted outdoors at a location that provides free view in a range of
180° vertically to the sky and 360° horizontally around the device. The view to the sky must not be
blocked by any objects. This is usually given when mounting OTMC 100 on a roof or a sufficiently high
mast. Refer to the figure below.
You should furthermore consider that GPS signals may be reflected by large buildings and structures
around your OTMC 100, which may deteriorate the timing accuracy of OTMC 100.
OTMC 100 Quick Start Guide
8OMICRON

Always mount OTMC 100 in an upright position with the protective cap to the top, as shown in the
figure below. The RJ45 connector on the base plate of OTMC 100 must point vertically downwards.
Do not mount OTMC 100 inclined to any side or with the base plate to the top!
2
BAD position.
Will not work properly!
BEST position.
Recommended!
Possible if no alternative position is
available. Not recommended!
Possible position.
Mount in an upright position OTMC 100
with the protective cap to the top only!
Provide a suitable surge
protection device to the Ethernet
cable leading into the building!
Always observe all relevant
lightning protection regulations!
Use shielded Ethernet cable only!
4
1
3
Mounting
OMICRON 9

3.3 Mounting instructions
There are two possible ways for mounting OTMC 100.
Mast mounting using the delivered mast mounting
kit (see Mounting instructions for mast
mounting on page 10).
Temporary mounting using the 1/4" BSW
(British Standard Whitworth) thread for
mounting on a stand, for example.
3.3.1 Mounting instructions for mast mounting
The mounting kit delivered with OTMC 100 contains the following parts:
• 1 mast clamp consisting of 2 clamping jaws and 4 fastening screws M6 x 110 with lock washers
• 2 clamping blocks and 4 fastening screws M6 x 16 with lock washers
• 1 connection pipe 20 x 300 mm
Proceed as follows:
Assemble the mast clamp and attach it to the mast as
shown in the figure.
The mast clamp is suitable for mast diameters of 25
to 70 mm.
Use a tightening torque of 5 Nm for the fastening
screws of the clamping block (1). The tightening
torque for the fastening screws of the mast clamp (2)
depends on the material and diameter of the mast.
1 2
OTMC 100 Quick Start Guide
10 OMICRON

Attach the clamping block (3) to the base plate of
OTMC 100 as shown in the figure.
Use a tightening torque of 5 Nm for the fastening
screws.
Exclusively use the two M6 x 16 screws delivered
with the mast mounting kit! Do not use longer screws!
The threaded holes in the base plate are only 9 mm
deep.
3
Insert the connecting pipe (4) to the clamping blocks
on the mast clamp and OTMC 100 as shown in the
figure.
5
4
Align OTMC 100 in an upright position as shown in
the figure and tighten both clamping screws (5) of the
clamping blocks evenly with a tightening torque of
5 Nm.
Assemble the delivered waterproof RJ45 connector
to the Ethernet cable according to the accompanying
assembly instructions and insert it to the RJ45
connector on the base plate of OTMC 100. Use
suitable cable ties to fasten the Ethernet network
cable to the connecting pipe and the mast.
Always use the waterproof RJ45 Ethernet
connector supplied with OTMC 100 in order
to maintain the watertightness of the
device. Do not use OTMC 100 outdoors
without a waterproof connector inserted.
The clamping blocks provide holes for
horizontal and vertical mounting of the
connecting pipe. Therefore, it is also
possible to mount OTMC 100 on the top of
a vertically mounted connecting pipe.
Mounting
OMICRON 11

4 Connecting OTMC 100 to an Ethernet
network
Note regarding network switches:
The precise synchronization of clocks via Ethernet networks requires that the propagation
delay times for data packets is constant on the entire network. Network switches that do not
provide transparent clock functionality may introduce jitter and thus influence the propagation
delay. Therefore, OTMC 100 will only be able to provide highly accurate time
synchronization in networks that that are equipped with network switches providing
transparent clock functionality as specified in IEEE 1588-2008 or that do not have a network
switch at all.
Do not connect conventional RJ45 connectors that are equipped with a locking tab to
OTMC 100. The locking tab of such connectors cannot be accessed directly anymore after
inserting the plug to OTMC 100. In this case, a small screwdriver must be used to carefully
unlock the RJ45 connector in the socket. Use the waterproof RJ45 connector supplied with
OTMC 100 instead or, when using a cable with a conventional RJ45 connector (for test
purposes only!), break off the locking tab at the RJ45 connector before inserting it to
OTMC 100.
OTMC 100 is supplied with power by Power over Ethernet (PoE) according to IEEE 802.3af. If the
network port OTMC 100 is connected to does not provide PoE, a PoE injector has to be used as
shown in the figure below.
OTMC 100 supports Ethernet cable lengths of up to 100 m without the need of repeaters.
OTMC 100 automatically powers up after inserting the RJ45 plug and providing supply voltage to
OTMC 100. After the device is supplied with voltage, the LED first lights up red for approx. 15 s during
the boot process and then changes to green to indicate operational readiness.
OTMC 100 is a class 1 powered device (PD) as defined in IEEE 802.3af (power
consumption < 3.84 W). The network port OTMC 100 is connected to must be able to supply
a class 1 powered device.
CAUTION
Risk of injury or damage due to high voltages caused by lightning stroke.
The local lightning protection regulations and the protection concept of the building and
the electrical installation may require a suitable surge protection device for the Ethernet
network cable leading into the building.
OTMC 100 Quick Start Guide
12 OMICRON

The following figure shows the general arrangement of OTMC 100, the surge protection device and
the PoE injector (if necessary).
Ethernet network port
providing PoE
Surge protection device
Ethernet network port
not providing PoE
PoE injector
Surge protection device
Mains
The following figure shows a typical network with one OTMC 100, a network switch providing
transparent clock functionality, and several PTP slaves.
Network switch
(transparent clock)
PTP slavePTP slave PTP slave PTP slave
Connecting OTMC 100 to an Ethernet network
OMICRON 13

5 Accessing OTMC 100 from a Computer
OTMC 100 automatically powers up after supply voltage is provided via Ethernet (PoE). The LED
lights up green when the device is ready for operation.
After that, a network IP address is assigned automatically in order to connect the device to the
network. If a DHCP server is available in the network, the IP address is assigned by the DHCP server.
If not, OTMC 100 automatically selects and assigns a link-local IPv4 and IPv6 address by itself.
5.1 System requirements
Your computer must fulfill the following requirements to access the OTMC 100 web interface:
• Network port configured for operation in the network OTMC 100 is connected to.
• OMICRON Device Link installed (→ see Accessing the OTMC 100 web interface on page 14).
• Web browser installed (Microsoft Edge, Mozilla Firefox 20 or higher, or Google Chrome version 31
or higher).
If you are accessing OTMC 100 from a Mac or Linux operating system supporting zeroconf,
you can access the web interface of OTMC 100 by entering http://<hostname>.local to the
address bar of your web browser. The default hostname is the device serial number. The
serial number is available on the type plate on the bottom side of OTMC 100 (labeled
"SerNo").
5.2 Accessing the OTMC 100 web interface
Proceed as follows to access the OTMC 100 web interface:
1. Connect your computer to the network.
2. If necessary, install OMICRON Device Link on your computer.
► Exit all other major programs running on your computer.
► Insert the CD ROM into your computer’s CD ROM drive and click Install Device Link on the
start page. Should the start page not be displayed automatically a few seconds after the CD
has been inserted into the CD ROM drive, change to the Windows Explorer and double-click
autorun.exe on the CD ROM.
► Follow the instructions displayed on the screen to install the software.
3. Launch OMICRON Device Link.
OTMC 100 Quick Start Guide
14 OMICRON

4. OMICRON Device Link will automatically find and display your OTMC 100.
The vertical bar on the left displays the device status:
• Green bar: The device is online and ready for operation.
• Gray bar: The device is offline. Connect your OTMC 100 to the Ethernet network. If the
network is not able to supply your OTMC 100 via PoE (Power over Ethernet), use a PoE
injector to supply your OTMC 100 with power.
• Red bar: The device is online but not accessible due to incorrect IP configuration.
OTMC 100 is usually configured to obtain the IP address automatically. However, it is also
possible to assign a static IP address to your OTMC 100. In this case, the following behavior
applies:
When accessing OTMC 100 via Ethernet, OMICRON Device Link will find your OTMC 100, but
display a red bar to indicate that the device cannot be accessed.
► Click the OTMC 100 entry and select Configure IP.
OMICRON Device Link will then display an IP configuration page. In this page, select Use the
following IP address and enter the IP address of your OTMC 100, or enter an IP address of
your choice to assign a new IP adress to your OTMC 100. Click the Subnet mask field to
automatically fill a subnet mask and then click Apply to connect to your OTMC 100.
Or
► Click the Add device button and enter the IP address assigned to your OTMC 100.
Accessing OTMC 100 from a Computer
OMICRON 15

5. A green bar indicates that OMICRON Device Link successfully connected to your OTMC 100.
Click the OTMC 100 entry and select Open web interface.
6. The web interface is opened in a web browser.
Password protection is disabled by default. If a password has been defined for your OTMC 100, a
login dialog is displayed. Enter your password and click Login.
7. The start page of the OTMC 100 web interface is displayed in the web browser.
OTMC 100 Quick Start Guide
16 OMICRON

8. Refer to the OTMC 100 Series User Manual for information on how to configure and operate
OTMC 100. Section "Next steps to set up OTMC 100" in the OTMC 100 Series User Manual
provides an overview of steps required to configure OTMC 100 according to your needs.
Clicking Manual in the top right corner of the web interface displays the OTMC 100 Series
User Manual in PDF format. Clicking Help displays the start page of the help system for the
web interface.
Accessing OTMC 100 from a Computer
OMICRON 17

6 Troubleshooting
OTMC 100 automatically powers up after inserting the RJ45 plug and providing supply voltage to
OTMC 100. After the device is supplied with voltage, the LED first lights up red for approx. 15 s during
the boot process and then changes to green to indicate operational readiness. In case of operational
problems with OTMC 100, please use the following table to solve the problem.
The OTMC 100 Series User Manual contains detailed descriptions of the operating procedures
possible for OTMC 100 directly on the device and via its web interface.
Membrane vent
detached
Pushbutton
LED
Pushbutton
Problem / LED Indication Description / Possible Cause / Remedy
LED continuously off OTMC 100 is not supplied with power via the RJ45 Ethernet connector
due to one of the following reasons:
• The network port OTMC 100 is connected to does not provide Power
over Ethernet (PoE) according to IEEE 802.3af or is not able to
supply a class 1 powered device. Use a suitable network port or use
a PoE injector (→ see Connecting OTMC 100 to an Ethernet
network on page 12).
• The waterproof RJ45 Ethernet connector used to connect
OTMC 100 is defective or not mounted properly. Check the pin
assignment and the connection of the RJ45 connector and mount it
properly, if necessary. The Ethernet patch cable delivered with
OTMC 100 can be used for test purposes (break off the locking tab
of the cable's Ethernet connector before inserting the cable to
OTMC 100!) (→ see Connecting OTMC 100 to an Ethernet
network on page 12).
OTMC 100 Quick Start Guide
18 OMICRON

LED flashes green OTMC 100 is in the recovery mode, waiting for new software. Refer to
chapter "Operating OTMC 100" of the OTMC 100 Series User Manual.
The password dialog is
displayed when accessing
the web interface of
OTMC 100. You do not
know the password.
Perform a factory reset directly on the OTMC 100 device (→ see
"Performing a factory reset (reset to factory defaults)" below).
Performing a factory reset disables password protection and resets the
currently defined password to the factory default password timeserver.
6.1 Performing a factory reset (reset to factory defaults)
The pushbutton can be accessed after unscrewing the water-tight membrane vent. Use a pointed tool
such as a ball-pen to press the pushbutton (see figure on page 18).
NOTICE
Ingressing water may cause equipment damage.
► Do not forget to reinsert the membrane vent in order to restore watertightness.
► Tighten the membrane vent with a tightening torque of 0.6 to 0.8 Nm.
1. Press the pushbutton and keep it pressed.
2. The LED goes off.
3. After approx. 5 s, the LED lights up orange. Keep the button pressed and wait until the LED lights
up red.
4. Release the pushbutton.
5. After approx. 15 s the LED changes to green to indicate operational readiness.
The device now has the factory default configuration settings. Password protection is disabled and the
password is reset to the factory default password timeserver.
Troubleshooting
OMICRON 19

7 Open Source software license information
Parts of the OTMC 100 software are under OMICRON license, other parts are under Open Source
software licenses. To view the license information on the Open Source software used in OTMC 100,
please launch the OTMC 100 web interface and click the License Information hyperlink in the bottom
right corner.
The used Open Source components are available for download under
http://opensource.omicronenergy.com/OTMC 100.
OTMC 100 Quick Start Guide
20 OMICRON