NEC NEAX IPS NWA-008869-001 - Manual (Page 62)

CHAPTER 2 INSTALLATION
– 52 – NWA-008869-001 Rev.1.0
atch2001.fm
The figure in the SWITCH NAME column and the position of 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 to the desired position.
NOTE 2: When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the
circuit card.
NOTE 3: To receive a clock signal from MP card, set the SW-1 and SW-2 on all the DTI cards to “OFF”.
SWITCH NAME
SWITCH
NUMBER
SETTING
POSITION
FUNCTION CHECK
JPS (Jumper pin) Balanced transmission
(For twisted-pair cable)
LEFT
TA is grounded on the transmission line
(For coaxial cable)
JPR (Jumper pin) Balanced transmission
(For twisted-pair cable)
DOWN
RA is grounded on the transmission line
(For coaxial cable)
JP (Jumper pin)
RIGHT
Line impedance: 75 Ω
(For coaxial cable)
Line impedance: 120 Ω
(For twisted-pair cable)
JP1 (Jumper pin)
Always set to DOWN
RIGHT
UP
LEFT
DOWN
INSTALLATION PROCEDURE