NEC NEAX 2000 IPS - Page 138

CHAPTER 2 INSTALLATION
– 122 – NWA-008841-001 Rev.5.0
90ch2001.fm
• 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).
+5 V
-27 V
-27 V
CR
+90 V
+90 V
AC
AC
PZ-PW121/PZ-PW126
+5 V
-5 V
-5 V
+5 V
+80 V
-27 V
-27 V
-27 V
CR
CR
PZ-PW121/PZ-PW126
NOTE 1
+80 VOBP
+5 V
-48 V
-27 V
CR
NOTE 2
BATTERY
PWR CA-A
AC CORD-B
TERMINAL
BLOCKS
BASE
PIM0
PIM1
TO PIM2
+5 V
-27 V
-5 V
CR
PN-8LCAA
+90 V
TO AC MAINS INPUT
AC CORD-D
-48 VOBP
SUPPLY VOLTAGE CHECK AND HEAT RUN TEST