Nortel Networks 1000M warranty Lfben

Installing Power Failure Transfer Units Page 147 of 456

Figure 61

Typical PFTU connection to the MDF and the Master System Monitor

			NPS		GND
					COM
DEES 154			50220-07
PFTU		Power Supply			– 48 V		Meridian 1
	– 48V		P1–49		BATT	GND	master system
			P1–24				monitor (SM)
Open	NC1		P2–25					J3
when			P2–50		To other
activated
	NC				PFTU’s		LFBENR	9
									Closed on
	GND		P2–49			9	LFBEN	8
									MJ alarm
			P2–24
								7
							To
To	SWE		P1–50					6
							LFBEN
activate			P1–25
power fail					MDF		leads on	5
			TC
transfer							slave SM’s
	NO1		P2–23					4
			P2–48				REMALMB	3
Closed when	NO								Closed on
				Alarm			REMALMA	2
activated
				GND					MJ alarm
						1		1
					GND	BATT
		11	14	36 / 39
Additional	TC		LED		To power		LED
attendant
					supply above
consoles
			MJ Alarm			To REMALM leads on
	Attendant console
						slave system monitors			553-7559

Communication Server 1000M and Meridian 1 Large System Installation and Commissioning