NEC ND-70919 system manual Down

CHAPTER 4 CIRCUIT CARD INFORMATION

PN-24PRTA (PRT)

SWITCH NAME			SWITCH	SETTING				FUNCTION			CHECK
			NUMBER	POSITION
MB (Toggle SW)				UP	For make-busy
		ON
				DOWN	For normal operation
NOTE 2
SW0				ON	Source clock signal from network is
(Piano Key SW)			1		sent to the PLO0 input on MP card.
			NOTE 3
					Source clock signal from network is
OFF			NOTE 4	OFF	not sent to the PLO0 input on MP
8					card.
7
					Source clock signal from network is
6				ON
					sent to the PLO1 input on MP card.
5			2
4			NOTE 3
					Source clock signal from network is
3
2			NOTE 4	OFF	not sent to the PLO1 input on MP
1					card.
	ON
			3	ON	Remote loop-back
				OFF	For normal operation
			4	ON	Local loop-back (AIS send)
				OFF	For normal operation
			5	ON	Set equalizer according to the cable
					length between the PBX and the
				OFF
					MDF.
				ON
			6			SW0-5	SW0-6	SW0-7	CABLE LENGTH
						ON	ON	ON	0-40 m (0-131.2 ft.)
				OFF
						ON	ON	OFF	40-80 m (131.2-262.5 ft.)
						ON	OFF	ON	80-120 m (262.5-394 ft.)
				ON
						ON	OFF	OFF	120-160 m (394-525 ft.)
			7			OFF	ON	ON	160-200 m (525-656 ft.)
				OFF		OFF	OFF	OFF	Signal is not sent
			8	OFF	Not used
										(Continued)

Page 170	NEAX2000 IVS2 ISDN System Manual
	ND-70919 (E), Issue 1.0