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Ethernet 2, PMC/SBC Mode, and P2 I/O Selection Headers (J6, J7, J28, J32, J34, J97 – J110) Hardware
MVME55006E Single-Board Computer Installation and Use (6806800A37D)
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For J6, J100, J7 and J101, install jumpers across pins 2-3 on all four headers for rear P2
Ethernet. For front-panel Ethernet, install jumpers across pins 1-2 on all four headers.
For J34, J97, J98 and J99, no jumpers are installed for front-panel Ethernet. For rear P2
Ethernet, install jumpers across pins 1-2 on all four headers when in SBC/IPMC761 mode.
1.6.2.2 PMC/SBC Mode Selection
The MVME5500 is set at the factory for PMC mode. The SBC/IPMC761 mode should only be
selected when using the IPMC761 module in conjunction with the MVME761 transition
module.The PMC mode should be selected when using PMC modules with specific user I/O in
conjunction with the corresponding transition module. PMC mode should also be selected when
using PrPMC modules.
Two 3-pin planar headers (J28, J32) control the supply of +/- 12 volts to the P2 connector; one
or both of these voltages are required by the MVME712 or MVME761 module when operating
in SBC mode. For PMC mode, jumpers are installed across pins 1-2 on both headers. For
SBC/IPMC761 mode, install jumpers across pins 2-3 on both headers. For SBC/IPMC712
mode, install a jumper across pins 2-3 for J32 and install a jumper across pins 1-2 for J28.
1.6.2.3 P2 I/O Selection
Nine 3-pin planar headers (J102 –J110) are for P2 I/O selection. Jumpers are installed across
pins 1-2 on all nine headers when in PMC mode. Install jumpers across pins 2-3 on all nine
headers when in SBC/IPMC761 or SBC/IPMC712 mode to connect the extended SCSI signals
to P2.
If the rear P2 Ethernet is selected by jumpers J6, J7, J100, and J101, the Ethernet
signals also connect to PMC 1 user I/O connector J14. If a PMC card is plugged into
PMC slot 1, there may be a conflict between the I/O from the PMC card and the rear
Ethernet signals. This conflict does not occur with the IPMC761 or IPMC712 modules.
Product Damage
When J28 is configured for SBC/IPMC mode, –12V is supplied to P2 pin A30. If there
is an incompatible board plugged into this P2 slot, damage may occur.
When J32 is configured for SBC/IPMC mode, +12V is supplied to P2 pin C7. If there is
an incompatible board plugged into this P2 slot, damage may occur.