Rs485 - ADF Web HD67021-B2-20 User Manual

Industrial Electronic Devices
RS485 (for HD67022):
To terminate the RS485 line with a 120Ω resistor, it is necessary to put dip 1 ON, like in figure.
The maximum length of the cable should be 1200m (4000 feet).
Here some codes of cables:
Belden: p/n 8132 - 2x 28AWG stranded twisted pairs conductor + foil shield + braid shield;
Belden p/n 82842 - 2x 24AWG stranded twisted pairs conductor + foil shield + braid shield;
Tasker: p/n C521 - 1x 24AWG twisted pair conductor + foil shield + braid shield;
Tasker: p/n C522 - 2x 24AWG twisted pairs conductor + foil shield + braid shield.
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User Manual M-Bus / RS232 / RS485
Document code: MN67021_ENG Revision 2.100
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