Rs-485 connectors, Rs-485 connectors -26, Table 12-3. rs-485 pinouts (com 2) -26 – Basler Electric BE1-CDS240 Installation User Manual

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Figure 12-30. RFL9660 Protective Relay Switch to BE1-CDS240 Cable

Figure 12-31. SEL 2020/2030 to BE1-CDS240 Relay

RS-485 Connectors

RS-485 connections are made at a three-position terminal block connector which mates with a standard

communication cable. A twisted pair cable is recommended. Connector pin numbers, functions, names,

and signal directions are shown in Table 12-3. An RS-485 connection diagram is provided in Figure

Table 12-3. RS-485 Pinouts (COM 2)

Terminal

Function

Name

Direction

B8 (A)

Send/Receive A

(SDA/RDA)

In/Out

B7 (B)

Send/Receive B

(SDB/RDB)

In/Out

B6 (C)

Signal Ground

(GND)

N/A

12-26

BE1-CDS240 Installation

9365200990 Rev M