NEC 2000 IVS manual Right, Left

PN-24DTA (DTI)

Switch Settings (Continued)

	SWITCH	SWITCH	SETTING	FUNCTION	CHECK
	NAME	NUMBER	POSITION
JPS (Jumper pin)			Right	Neutral grounding on the transmitting line is not provid-
				ed.
			Left	Neutral grounding on the transmitting line is provided.
JPR0 (Jumper pin)				Neutral grounding on the receiving line is not provided.
			Up
				Neutral grounding on the receiving line is provided.
			Down
JPR1 (Jumper pin)			Right	Line impedance : 110 ohms

Line impedance : 100 ohms

Left

The figure in the SWITCH NAME column and the position in in the SETTING POSITION col- umn indicate the standard setting of the switch. When the switch is not set as shown by the figure and , the setting of the switch varies with the system concerned.

Note 1: Set the groove on the switch knob to the intended switch position.

Note 2: When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the circuit card.

Note 3: Set SW-1 and SW-2 as follows:

NO. OF DTI

DTI0

DTI1

DTI2

DTI3

DTI4

REMARKS

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

CONDITIONS

-1

-2

-1

-2

-1

-2

-1

-2

-1

-2

When one DTI is

The MP card receives the clock

provided

ON

OFF

signal from DTI0 at its PLO0 in-

put.

When more than one

The MP card receives the clock

DTI is provided

signal from DTI0 at its PLO0 in-

put under normal conditions.

ON

OFF

OFF

ON

OFF

OFF

OFF

OFF

OFF

OFF

Should a clock failure occur with

DTI0, the MP card switches to the

PLO1 input, which gets clock

from DTI1.

Note 4: When the PBX is the master office, set the SW-1 and SW-2 on all the DTI cards mounted in PIM0 to “OFF”.

CHAPTER 4 ND-45504 (E)

Page 74

Revision 2.0