NEC 151944 system manual Down

Table 3-7 Switch Settings on PN-DAIB Card (Continued)

SWITCH	SWITCH	SETTING	FUNCTION	CHECK
NAME	NUMBER	POSITION

SW3 (Dip SW)

1

ON

Set the equalizer according to the cable length

between the system and the CSU.

ON

OFF

1

2

3

4

2

ON

SW-1

SW-2

SW-3

CABLE LENGTH

ON

ON

ON

0 - 131.2 ft. (0 - 40 m)

OFF

ON

ON

OFF

131.2 - 262.5 ft. (40 - 80 m)

ON

OFF

ON

262.5 - 394 ft. (80 - 120 m)

3

ON

ON

OFF

OFF

394 - 525 ft. (120 - 160 m)

OFF

ON

ON

525 - 656 ft. (160 - 200 m)

OFF

OFF

OFF

OFF

Signal is not sent

4

OFF

Always set to OFF.

JPS (Jumper pin)

UP

Neutral grounding on the transmitting line is

provided.

Neutral grounding on the transmitting line is not

DOWN

provided.

JPR (Jumper pin)

UP

Neutral grounding on the receiving line is provided.

Neutral grounding on the receiving line is not

DOWN

provided.

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

CHAPTER 3 ND-46550 (E)

Page 38

Revision 2.0