Nortel Networks 1000M warranty MDF terminations for typical Pftu operation, Ipe

Page 146 of 456 Installing Power Failure Transfer Units

5Designated telephones (DTMF or rotary dial types)

6Central office trunks

Figure 60

MDF terminations for typical PFTU operation

PFTU	PFTU	Telephone/CO trunk	IPE
	terminations	terminations	terminations
P1
P2
Auxiliary		System alarm (J3)
		terminations	System monitor
power supply
-48V			normally
			open
GRD			X
			7	8	9
				GRD
				553-5137

Figure 61 on page 147 shows detail view of the PFTU alarm connections. The PFTU can be activated by system power failure and using the Attendant console TC switch. If more than one Attendant console is connected to the system, it must be connected in parallel with the main Attendant console as shown in the figure.

NN43021-310 Standard 02.01 December 2007