Publication No.
500-9300007876-000
Rev. C.0
Mezzanine Sites 145
C • Mezzanine Sites
C.1 PMC/XMC Slot
The PCI Mezzanine Card (PMC/XMC) interface is an additional slot for parallel
mounted add-on cards. The interface is compliant to the IEEE 1386.1 specification
and is based on the electrical and logical layer of the PCI specification. PMC slots
are 66/100/133 MHz PCI-X capable.
• Both PMCs have a 3.3 V key mounted, for 3.3 V compatible PMC cards.
C.1.1 Electrical Characteristics
C.1.2 Mounting of PMC or XMC Module
To mount a PMC or an XMC board to the XVR16, follow these steps:
1. Remove XVR16 from system housing.
2. Remove the front panel cover of the PMC/XMC slot.
3. Take the PMC/XMC from inside through the front panel and then press
connectors together.
4. Verify correct installation of the EMC gasket.
5. Affix the PMC/XMC onto the host boards with four screws. Screws must be
locked with Loctite 243.
Table C-1 Electrical Characteristics
Parameter
Comment
Value
5 V
Max. current on 5 V Pins
1.5 A
c
3.3 V
Max. current on 3.3 V Pins 2.3 A
c
+12 V
Max. current on +12 V Pin 0.1 A
-12 V
a
Max. current on -12 V Pin
0.1 A
V(I/O)
b
Voltage for PCI I/O
3 V or 5 V
P
Max. power consumption
total
7.5 W
a
-12 V must be connected to the backplane.
b
The appropriate key has to be mounted.
c
Total power dissipation on 3.3 V and 5 V rail is 7.5 W.