Ampro Corporation 486E manual Configuring Serial 2 for RS-485 J6, W5, W6, Pin Signal Name

Product Reference

Configuring Serial 2 for RS-485 (J6, W5, W6)

Serial 2 provides circuitry for both an RS-232C and RS-485 interface. The port can be configured to support either interface using jumpers. The RS-232C interface appears on J11. The RS-485 interface appears on the two-pin connector, J6. Table 2–10 shows the pinout for J6. Table 2–11 shows the manufacturer’s part number for mating connectors to J6.

Table 2–10. RS-485 Serial Port 2 Connector (J6)

Pin Signal Name

1+I/O

2-I/O

Table 2–11. J6 Mating Connector

Connector Type	Mating Connector
Discrete Wire	MOLEX Housing 22-01-2027
(Locking Connector)	Pin 08-55-0102

Figure 2–6 shows how to set W5 to select the output interface for Serial 2.

W5

RS-232

RS-485

Figure 2–6. Serial 2 Interface Selection

Note

The RS-485 and RS-232C interfaces share the same circuitry. If you configure Serial 2 for RS-485, do not connect a serial device to J11. Similarly, if you configure Serial 2 for RS-232C, do not connect anything to J6.

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