GE instruction manual Configuration cable pin assignments P485 end, Pin Description

INSTALLATION

CONFIGURATION CABLE The PC connector is indicated as B in Figure 2-1: P485 electrical connections on page 2–2.This connector is used to connect the P485 to a PC using the configuration cable for configuration and monitoring purposes.

A P485/D485 configuration cable can be purchased from GE Multilin. The wiring for the configuration cable is shown below.

D-sub 9 female (PC)			Modular 4/4 RJ11 connector (P485)
	1		1	Ground
RS232 Rx	2		2	Ground
RS232 Tx	3		3	Rx
	4		4	Tx
Ground	5
	6	Connects to P485
	7
	8
	9		Connects to PC serial port

Figure 2-3: Configuration cable

The pinout for the modular 4/4 RJ11 connector (connects to the P485) is shown below.

Table 2–2: Configuration cable pin assignments (P485 end)

Pin	Description
1	Signal ground
2	Signal ground
3	RS232 Rx, data input to P485
4	RS232 Tx, data output from P485

4

3

2

1

Figure 2-4: Configuration cable (P485 end)

The pinout for the DSUB 9-pin serial plug (connects to the PC) is shown below.

Table 2–3: Configuration cable pin assignments (PC end)

Pin	Description
1	Not connected
2	RS232 Rx, data input to PC
3	RS232 Tx, data output from PC
4	Not connected
5	Ground
6 to 9	Not connected

P485 MODBUS TO PROFIBUS CONVERTER – USER GUIDE 2–3