Toshiba 1800 manual Communication Interface, Remote Contacts IBM AS/400

Communication Interface

Remote Contacts (IBM AS/400)

The remote contacts interface is a standard feature. It is provided through solid state relays with contacts through a DB9 male connector located on the back of the UPS. The following chart shows the signals and the connector pinout.

Pin	Signal Function	Logic		In the UPS
1	Fault Signal	Closed when fault					1
		detected
2	UPS stop com-	Backup stop when the					2
	mon	level changes from						3
		Low (-3 to -15 V) to
3	UPS stop signal
	input	High (+3 to +15 V)
4	Normal input	Closed with normal					4
	power supply	supply power					5
5	Signal common	Common signal return
6	Bypass operation	Closed during bypass					6
		operation
7	Battery voltage	Closed at voltage drop					7
	low
8	UPS operation	Closed during inverter					8
		operation
9	Power failure	Closed at power failure					9
	signal
			Voltage			Current
			48 VDC peak			100 mA peak
			30 VAC rms			70 mA rms
			(42 VAC peak)		(100 mA peak)

DB9 Male Connector Outline (facing connector)

26 1800 Series User Manual