Connection To St221 - Honeywell DCP552 Mark II User Manual

Connection to ST221

Handling Precautions
SDA SDB RDA RDB SG
60 61 62 63 64
3 4 1 2 5
• Attach 1/2W or greater terminating resistances of 150Ω ±5% at each
end of the communications lines.
• The DCP552 operates as a master station when connected to an ST221
during communications.
ST221DE05DCP
Chapter 4. WIRING
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