22.2.11.2
Design
SEMOD158668-1 v1
SEMOD158670-4 v3
RS485 is a PC-MIP card, and it is factory mounted as a mezzanine card on the
Analog digital conversion module (ADM).
RS485 connector pinouts
SEMOD158670-10 v1
The arrangement for the pins in the RS485 connector (figure
) are presented in
table
:
Table 640:
The arrangement for the pins
Pin
Name 2-wire
Name 4-wire
Description
1
RS485+
TX+
Receive/transmit high or transmit high
2
RS485–
TX–
Receive/transmit
3
Term
T-Term
Termination resistor for transmitter (and receiver
in 2–wir case) (connect to TX+)
4
N.A.
R-Term
Termination resistor for receiver (connect to RX
+)
5
N.A.
RX–
Receive low
6
N.A.
RX+
Receive high
Screw
terminal
X3
1
2
1
2
3
4
5
6
Screw
terminal
X1
Backplane
Angle
bracket
RS485
PWB
IEC06000517 V1 EN-US
Figure 386:
RS485 connector
•
2-wire: Connect pin 1 to pin 6 and pin 2 to pin 5
•
Termination (2-wire): Connect pin 1 to pin 3
•
Termination (4-wire): Connect pin 1 to pin 3 and pin 4 to pin 6
1MRK 505 394-UEN A
Section 22
IED hardware
Line differential protection RED650 2.2 IEC
841
Technical manual
Содержание RED650
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