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OTMC 100 Series User Manual
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Ethernet cable length up to 100 m (standard Ethernet). Can be increased to up to 2 km by using
fiber optic Ethernet and media converters.
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Automatic cable length compensation compensates errors due to propagation delays on the
network.
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Automated configuration. The possibility to upload configuration files enables easy exchange and
configuration of the hardware.
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The OTMC 100 enables redundant configurations as defined in IEEE 1588-2008. The best master
clock algorithm (BMCA) guarantees that the best clock in the system is used as the master clock.
An automatic changeover to another clock is performed if the active master clock no longer
provides sufficient time accuracy.
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Due to its integrated NTP server functionality the OTMC 100 can also be used in networks
containing devices that are not yet ready for PTP. The OTMC 100 is able to simultaneously operate
as NTP server and PTP grandmaster clock.
The following features are supported by the OTMC 100 software:
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Time:
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IEEE 1588-2008 version 2 support:
Default E2E (end-to-end) and P2P (peer-to-peer) profile
Power profile acc. to IEEE C37.238-2011 (OTMC 100p only)
One step and two step operation
Multicast transport
IPv4, IPv6 and layer 2
PTP management interface
High performance (up to 512 messages per second)
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NTPv4 (according to RFC 5905)
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Time (according to RFC 868)
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Daytime (according to RFC 867)
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Networking:
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10Base-T/100Base-TX Ethernet
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IPv4 and IPv6
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DHCP/Autoconf
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Zeroconf (mDNS/DNS-SD)
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OMICRON OMFind service
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