NEC NEAX 2000 IPS Installation Manual page 413

SWITCH NAME
SW3 (Dip SW)
ON
1 2 3 4
JPS (Jumper pin)
JPR (Jumper pin)
E1Z (Jumper pin)
SRT (Jumper pin)
The figure in the SWITCH NAME column and the position of
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: When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the
circuit card.
SWITCH SETTING
NUMBER POSITION
1
ON
2
ON
3
ON
4
OFF
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
FUNCTION
Always set to ON
Always set to ON
Always set to ON
Always set to OFF
Balanced transmission: 120 Ω (For
twisted-pair cable)
TA is grounded on the transmission
line: 75 Ω (For coaxial cable)
RA is grounded on the transmission
line: 75 Ω (For coaxial cable)
Balanced transmission: 120 Ω (For
twisted-pair cable)
Line impedance: 75 Ω (For coaxial
cable)
Line impedance:
120 Ω (For twisted-pair cable)
Line impedance:
75 Ω (For coaxial cable)
Line impedance:
120 Ω (For twisted-pair cable)
– 397 –
PN-DAIE (DAIE)
in the SETTING POSITION col-
NWA-008841-001 Rev.5.0
CHECK
90ch3003.fm