Eaton Electrical Powerware 9315 operation manual 1. Pin Assignments for Port 1 DB-9

Communication

+24V	1	6	NOT USED
RS-232 TXD
	2
			485+
RS-232 RXD		7
	3
			485–
		8
NOT USED
	4
			RETURN
RETURN		9
	5

Figure 7-3. Port 1 (DB-9) Pin Assignments

Table 7-1.Pin Assignments for Port 1 (DB-9)

Pin Number	Symbol	Function		Comments
1	+24V	+24 Volts DC
2	TXD	Transmit Data		Input to UPS
3	RXD	Receive Data		Output from UPS
5	RTN	Return
7	485+	RS-485	+ Data
8	485–	RS-485	– Data
9	RTN	Return

NOTE The X-Slot communication bay is connected internally to the DB-25 port by default; the DB-25 is disabled for other uses. Contact your Eaton service representative to purchase, install, and set up an external modem or an internal X-Slot Modem Card.

GND	1	14	NOT USED
RS-232 TXD
	2
			NOT USED
RS-232 RXD		15
	3
		16	NOT USED
RS-232 RTS
	4
			NOT USED
RS-232 CTS		17
	5
			NOT USED
RS-232 DSR		18
	6
			NOT USED
RTN		19
	7
			RS-232 DTR
+12V		20
	8
			NOT USED
NOT USED		21
	9		–12V
NOT USED		22
	10
			NOT USED
NOT USED		23
	11		NOT USED
NOT USED		24
	12
			NOT USED
NOT USED		25
	13

Figure 7-4. Port 2 (DB-25) Pin Assignments

7-4 EATON Powerware® 9315 UPS (200–300 kVA) Operation Manual S 164201036 Rev F powerware.com