Instruction manual

Installation and Operation
12 COM32 INSTALLATION & OPERATION MANUAL
Figure 2.3b RS-485 Topologies to Avoid
SHLD
SHLD
SHLD
RS-485 PORT RS-485 PORT
SHLD
RS-485 PORT
SHLD
RS-485 PORT
DO NOT
CONNEC
T
SHLD
SHLD
RS-485 PORT RS-485 PORT
SHLD
SHLD
RS-485 PORT RS-485 PORT
SHLD
SHLD
RS-485 PORT RS-485 PORT
DO NOT
CONNECT
3-way star
connection
point not
allowed
Computer
or Modem
COM32
RS-232C to RS-485 Converter
RS-232C
RS-485
Computer
or Modem
COM32
RS-232C to RS-485 Converter
RS-232C
RS-485
SHLD
RS-485 STAR CONNECTION
RS-485 T-CONNECTION