NEC 151944 Manual De Usuario

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CHAPTER 3
ND-46550 (E)
 
Page 38
Revision 2.0
Note:
When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the circuit card.
SW3 (Dip SW)
1
Set the equalizer according to the cable length 
between the system and the CSU.
OFF
2
OFF
3
OFF
4
Always set to OFF.
JPS (Jumper pin)
UP
Neutral grounding on the transmitting line is 
provided.
Neutral grounding on the transmitting line is not 
provided.
JPR (Jumper pin)
UP
Neutral grounding on the receiving line is provided.
Neutral grounding on the receiving line is not 
provided.
Table 3-7  Switch Settings on PN-DAIB Card (Continued)
SWITCH
NAME
SWITCH
NUMBER
SETTING
POSITION
FUNCTION
CHECK
ON
2
1
3
4
ON
SW-1
SW-2
SW-3
CABLE LENGTH
ON
ON
ON
0 - 131.2 ft. (0 - 40 m)
ON
ON
OFF
131.2 - 262.5 ft. (40 - 80 m)
ON
OFF
ON
262.5 - 394 ft. (80 - 120 m)
ON
OFF
OFF
394 - 525 ft. (120 - 160 m)
OFF
ON
ON
525 - 656 ft. (160 - 200 m)
OFF
OFF
OFF
Signal is not sent
ON
ON
OFF
DOWN
DOWN