NEC NEAX 2000 IPS Installation Manual page 317

SWITCH NAME
SW4 (Dip SW)
ON
1 2 3 4
MB (Toggle SW)
NOTE 3
VR (Rotary SW)
NOTE 3: When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the
circuit card.
SWITCH SETTING
NUMBER POSITION
1 OFF
2 OFF
Selection of PLO1 input
(Phase Locked Oscillator)
• For clock receiver office:
SW4-3
OFF
ON
3, 4
OFF
ON
• For clock source office:
SW4-3
OFF
UP
DOWN
FUNCTION
Not used
Not used
SW4-4 FUNCTION
OFF 1.5 MHz clock
[For PN-24DTA/PN-24CCT/
PN-24PRT/PN-DTA/PN-DTB/PZ-
M649]
OFF 192 kHz clock
[For PN-BRTA]
ON 2 MHz clock
[For PN-30DTC/PN-2BRT/
PN-4BRT/PN-30CCT/PN-30PRT/
PN-DTA/PN-DTB/PZ-M650]
ON Not used
SW4-4
OFF
For make-busy
For normal operation
Variable Resistor for External Hold
Tone Source
(Volume [low to high] : Clockwise)
– 301 –
PN-CP27-A/PN-CP27-B (MP)
CHECK
Continued on next page
NWA-008841-001 Rev.5.0
90ch3002.fm
JULY/15/2007