Communication Server Large System Installation and Commissioning

Installing Power Failure Transfer Units Page 147 of 456
Communication Server 1000M and Meridian 1 Large System Installation and Commissioning
Figure 61
Typical PFTU connection to the MDF and the Master System Monitor
553-7559
Open
when
activated
Closed when
activated
To
activate
power fail
transfer
DEES 154
PFTU
Attendant console
TC
MJ Alarm
1
2
3
4
5
6
7
8
9
1
9
To power
supply above
LED
To REMALM leads on
slave system monitors
Closed on
MJ alarm
Closed on
MJ alarm
LFBENR
LFBEN
To
LFBEN
leads on
slave SM’s
REMALMB
REMALMA
GND BATT
36 / 391411
GND
Alarm
NO1
SWE
GND
NC
NC1
– 48V
P2–48
P2–23
TC
P1–25
P1–50
P2–24
P2–49
P2–50
P2–25
P1–24
P1–49
NPS
50220-07
Power Supply
BATT
GND
GND
COM
– 48 V
To other
PFTU’s
Additional
attendant
consoles
Meridian 1
master system
monitor (SM)
J3
MDF
LED
NO