Honeywell VCU-04 ユーザーズマニュアル

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 Supervised inputs
The typical connection for supervised inputs is shown in 
Figure 23
. Put 
the resistors close to the contact.
Yellow resistor: 1210 Ohm 1%
White resistor: 392 Ohm 1%
Close contact resistance: 296 Ohm
Open contact resistance: 1210 Ohm
Temaline recommends that you establish an electrical environment where 
the cables are well separated, even at short runs, especially to the power 
cables or external cables which can be essentially subjected to interference 
or lightning.
Use a twisted-pair cable for the contact cables. Make sure that the cables 
correspond in size to the norms indicated in section INPUT WIRES...
Max contact resistance = 25 Ohm
Figure 23 Supervised input connection