Mitsubishi Electric 800 Series Instruction Manual page 128

Commercially available products (as of December 2019)
Product name
RS-485 distributor
 Terminating resistor
Prepare a 100 Ω 1/2 W terminating resistor such as the following.
1 0 1 =100Ω
(10¹)
• Connect the terminating resistor between pin No. 3 (RDA) and pin No. 6 (RDB).
• Connect the terminating resistor to only the inverter remotest from the programmable controller.
Model
BMJ-8-28N (Pins No. 2 and No. 8 are not
connected internally.)
(A plug with a terminating resistor is not used.)
DMDH-3PN
DMDH-10PN
Manufacturer
HACHIKO ELECTRIC CO., LTD.
Diatrend Corp.
3. RS-485 Communication
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127
3.2 Wiring