Baldor FPX A05T Installation & Operating Manual page 30

Figure 3-25 RS485 4 Wire Multi-Drop for UL Installations
P
= Twisted Pair
Use twisted pair shielded cable
with an overall shield.
* Terminating resistor T
Only the PC and last control are terminated.
Figure 3-26 RS485 4 Wire Multi-Drop for CE Installations
P
= Twisted Pair
Use twisted pair shielded cable
with an overall shield.
* Terminating resistor T
Only the PC and last control are terminated.
Note: For CE installations, connect the overall shield at each end of the cable to PE. The
voltage potential between the PE points at each end of the cable must be Zero Volts.
See Section 4 of this manual for the description of switch "AS1-1 to AS1-4" for
address settings for multi-drop applications.
MN1276
Host
Computer
*
P
T
R
RX+
RX--
*
P
T
R
TX+
TX-
DGND
GND
is 120 W typical value.
R
Host
Computer
*
T
P
R
RX+
RX--
*
T
P
R
TX+
TX-
DGND
PE
GND
is 120 W typical value.
R
X6
TX+
TX--
RX+
RX-
DGND
GND
Shields
X6
T
*
R
TX+
TX--
T
*
R
RX+
RX-
DGND
Shields
GND
X6
TX+
TX--
RX+
RX-
DGND
PE
GND
PE
X6
T
*
R
TX+
TX--
T
*
R
RX+
RX-
DGND
PE
GND
Receiving & Installation 3-19