Industrial
Electronic Devices
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User Manual
M-Bus / RS232 / RS485
Document code: MN67021_ENG Revision 2.100 Page 12 of 25
ETHERNET (for HD67021/22-B2-xxx):
The Ethernet port is used for programming the device.
The Ethernet connection must be made using Connector2 of HD67021/22-B2-xxx with at least a Category 5E cable. The maximum length of
the cable should not exceed 100m. The cable has to conform to the T568 norms relative to connections in cat.5 up to 100 Mbps. To connect
the device to an Hub/Switch is recommended the use of a straight cable, to connect the device to a PC/PLC/other is recommended the use of
a cross cable.
