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Industrial Electronic Devices
RS485:
The RS485 port is present only for the BACnet MS/TP devices (HD67677-MSTP-A1 and HD67677-MSTP-B2).
For terminating the CAN line with a 220Ω resistor it is necessary to put Dip1 of 'Dip-Switch B' (for code and HD67677-MSTP-A1) or Dip2 of
'Dip-Switch B' (for code HD67677-MSTP-B2) at ON position.
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.
ADFweb.com S.r.l.
User Manual BACnet slave / CAN
Document code: MN67677_ENG
Revision 1.010
Page 16 of 34
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