Schneider Electric PWRSRV750 RS-485 Ports, 2shows the default values for each of the RS-485 ports

63230-216-207/A3		Chapter 4—Connections
9/2002			RS-485 Ports
RS-485 PORTS	Table 4–2shows the default values for each of the RS-485 ports.
	Table 4–2: Default Values for RS-485 Ports
	Value	Default Setting COM 3 and COM 4
	Type	4-wire
	Baud Rate Speed	19200
	Parity	Even

NOTE: On a 4-wire mixed mode (POWERLOGIC and Modbus) daisychain, device address 1 cannot be a POWERLOGIC or SY/MAX device and device address 16 cannot be a Modbus device.

Each RS-485 port is a male DB-9 connector with the pin-out arrangement shown in Figure 4–5.

Male DB-9 of	1	2	3	4	5
Power Server	6	7		8	9
	Tx+			Rx+	SHIELD
	Tx–			Rx–

Figure 4–5: Male DB-9 connector (master port)

Two DB9-to-terminal block adapters (female) [Square D part no. DB9F2TB] are included with the Power Server. To connect the daisy chain of devices to the RS-485 port, attach an adapter to a Belden 8723 or equivalent cable and plug the adapter into the COM 3 or COM 4 port on the Power Server. Wire the cable and adapter as shown in Figure 4–6.

NOTE: Because of pin out configurations, it is necessary to make these connections as described. Square D cable CAB-107 is not compatible with this application.

			DB9F2TB to
	4-Wire		Power Server
	typical standard
	POWERLOGIC
	slave device
(IN+)	Rx +	Green	1	Tx –
		White
(IN–)	Rx –		2
		Red
(OUT+)	Tx +		3
		Black
(OUT–)	Tx –		4	Rx +
(Shld)	Shield		5	Shield
			6	Tx +
			7		30703009
			8
			9	Rx –

Figure 4–6: Typical POWERLOGIC standard device connection to

Power Server

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