NEC NEAX 2000 IPS Installation Manual page 138

• Power Routing
NOTE 1: PN-4LCD/4LCF/4LCL/4LCW card provides +80 V on-board power supply (+80 VOBP).
NOTE 2: PN-2DLCB/PN-2DLCN, PN-2LDTA, PN-2ODTA/2ODTB card provides –48 V on-board pow-
er supply (–48 VOBP).
PWR CA-A
BATTERY
AC CORD-B
AC CORD-D
TO AC MAINS INPUT
PZ-PW121/PZ-PW126
TO PIM2
-27 V
AC
PZ-PW121/PZ-PW126
-27 V
AC
SUPPLY VOLTAGE CHECK AND HEAT RUN TEST
+5 V
-27 V
CR
+90 V
NOTE 1
+5 V
+5 V
-27 V
CR
CR
+90 V
NOTE 2
+5 V
CR
PN-8LCAA
+5 V
CR
+90 V
– 122 –
CHAPTER 2 INSTALLATION
+80 V
+80 VOBP
-27 V
-5 V
-5 V
-48 V
-48 VOBP
-27 V
-27 V
-5 V
TERMINAL
BLOCKS
NWA-008841-001 Rev.5.0
90ch2001.fm
PIM1
PIM0
BASE