4.2 Auxiliary PCBs
Figure 4–1 DPU-Server Cables
Modem
PCB
Internal Phone Cable
Phone
Line
Internal VME
Data Cable
29-29565-01
DPU
Front-End
VME
Interface
PCB
(MVIB)
2T-T6000-AA
29-29373-01
Internal RS232 Cable
29-29566-01
DECsystem 5900
External RS232 Cable
External VME Data Cable
Internal Cables Used on -LC Configuration Only
MKV-040000314-40-DG
External RS232 Cable
29-29564-01
External VME
Data Cable
29-29563-01
DECstation 5000/240
4.2 Auxiliary PCBs
Auxiliary PCBs are defined as those not located in the DPU card cage. The
DECmpp 12000/Sx Series DPUs have three auxiliary PCBs mounted inside the
DPU enclosure.
•
DPU Interconnect PCB (DECmpp 12000-LC/Sx configuration only)
Provides a bulkhead connection for the VME and RS-232 cables. It is located
inside the DPU, at the lower rear, behind the power supply.
•
Lightpipe PCB
Drives the LEDs on the DPU front indicator panel. In DECmpp 12000
systems this is mounted to the inside of the front door, along with the power
switch assembly. In DECmpp 12000–LC systems it is mounted inside the
DPU top cover, over the inner front door.
•
Power Supply Controller PCB
Controls the power sequencing system. This PCB is located inside the power
tray enclosure.
4–2 Cables, Connectors, and Auxiliary PCBs
