OZONE ANALYZER BMT 965 Manual, Rev. 01/2024
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Appendix G: IP-based Communication
Instruments equipped for IP-based communication will support Fast Ethernet (100 Mbit/s) over
a four wire twisted pair cable up to a distance of 100 m. The MAC address of the device will be in
a range from 70-B3-D5-5D-60-00 to 70-B3-D5-5D-6F-FF, as assigned to BMT MESSTECHNIK
by the IEEE. The IP address of the device can be either assigned dynamically by DHCP or it can
be configured as a static address.
BMT 965 C / OG / AQ – Installation (M12)
Connection to Ethernet is made with an IP67 M12 connector delivered with the instrument. The
used shielded (S/FTP or S/UTP) cable should comply with Ethernet specifications (CAT-5,
CAT-6 or CAT-7). Outer diameter should be between 5.5 mm to 8 mm. Max. wire gauge is
AWG20 (0.75 mm²). Shield should be connected. Ethernet cables are available with two different
colour codes according to TIA/EIA-568, as shown in the following table:
M12-D Male cable connector
Pin assignment (plug-in side)
Pin Signal EIA/TIA 568A Colour EIA/TIA 568B Colour
1 Tx+ white/green white/orange
2 Rx+ white/orange white/green
3 Tx- green orange
4 Rx- orange green