Powerware 9335 operation manual Alarm MNS

Table H. Definition of pin connections on JD2 (25 pin DB-25P/F)

Pin	Contact	Signal		Function
1				Mains failure
2		ALARM	MNS	Mains present
3				Common
4				Load on inverter
5		Message	LD-INV
6				Common
7				Battery low
8		Alarm	BATT_LOW	Battery OK
9				Common
10				Load on Mains (BYPASS mode)
11		Message	LD_MNS
12				Common
13				Common Alarm
14		Alarm	COMMON_ALARM	No Alarm Condition
15				Common
16
-		NC		Not Connected
19
20				For future use
21				For future use
22		PS_12		GND
23		PS_12		+ 12V (Imax = 100 mA)
24				Not Connected
25				Not Connected

Contacts are rated at 60 volts maximum DC or 30 volts RMS AC, and 500 mA.

maximum current and should be supplied by a LVLE source in compliance with UL 1778

Powerware 9335 (80 kVA and 120 kVA) Installation and Operation	A-7
164201396 REV A 07/11/2003