NEC NEAX IPS NWA-008869-001 - Manual (Page 41)

CHAPTER 2 INSTALLATION
– 31 – NWA-008869-001 Rev.1.0
atch2001.fm
NOTE 3: When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the
circuit card.
Continued on next page
SWITCH NAME
SWITCH
NUMBER
SETTING
POSITION
FUNCTION CHECK
SW4 (Dip SW) 1 Not used
2 Not used
3, 4
Selection of PLO1 input
(Phase Locked Oscillator)
• For clock receiver office:
• For clock source office:
SW4-3 SW4-4
OFF OFF
MB (Toggle SW)
NOTE3
UP For make-busy
For normal operation
VR (Rotary SW) Variable Resistor for External Hold
Tone Source
(0-20 k
Ω: Clockwise)
1 2 3 4
ON
OFF
OFF
SW4-3 SW4-4 FUNCTION
OFF OFF 1.5 MHz clock
[For PN-24DTA/PN-24CCT/
PN-24PRT/PZ-M649]
ON OFF 192 kHz clock
[For PN-BRTA]
OFF ON 2 MHz clock
[For PN-30DTC/PN-2BRT/
PN-4BRT/PN-30CCT/PN-30PRT/
PZ-M650]
ON ON Not used
DOWN
20
0
INSTALLATION PROCEDURE