Subsystem Connectors; Cd Audio In Connector; Modem In Connector; Riser Board Cable Connector Locations - NEC POWERMATE 5100 Service Manual

Subsystem Connectors

The subsystem cable connector locations on the riser board are shown in the
following figure. Pin assignments are given in the tables following the figure.
A – CD Audio In (JP1)
D – RJ-45 LAN
G – Front Panel (F.P.)
J – Wake-On LAN (J7)

CD Audio In Connector

The pin assignments for CD audio in connector JP1 on the riser board are as
follows.
Pin
1
2
3
4

Modem In Connector

The pin assignments for modem in connector JP2 are as follows.
Pin
1
2
3
4

Riser Board Cable Connector Locations

B – Modem-In (JP2)
E – NLX Connector Segment (JP3)
H – Fan (J3)

CD Audio In Connector JP1 Pin Assignments

Signal
Left channel
Ground
Ground
Right channel

Modem In Connector JP2 Pin Assignments

Signal
Logic ground
Modem MIC out
Logic ground
Modem speaker in
C – Chassis Intrusion (J5)
F – NLX Connector Segment (P1)
I – Not Used (J6)
Riser Board 5-3