Moxa Technologies CP-114 Series - Manual (Page 45)

Connection Cable and Cable Wiring
Industio CP-114 User's Manual 5-5
RS-485 Cable Wiring
The RS-485 standard is an enhanced version of the RS-422 balanced line standard. It allows multiple
drivers and receivers in a multidrop systems. As many as 32 drivers and 32 receivers can be put on
any multidrop system.
The Industio CP-114 Series supports only 2-wire half-duplex RS-485 communication. Data+/-
pins are served for both data transmitting and receiving, depending on the RTS signal.
RS-485 pin outs for the Industio CP-114 Series:
CP-114
1 Data-(A)
2 Data+(B)
5 GND
Multidrop RS-485 Half-duplex
CP-114 RS-485 Device 1
Master Slave
2 Data+
Data+
1 Data- Data-
5 GND GND
RS-485 Device N
Slave
Data+
Data-
GND
See the section “RS-485 Programming” of the chapter “Serial Programming Tools” for more
RS-485 programming details.
1 Data-(A)
2 Data+(B)
5 GND