Specifications

2.8 Installing or Removing a PMC Module
Before installing a PMC module, check that the VP 110/01x board PMC V(I/O) voltage is
configured to match the requirements of the PMC module. If two PMC modules are fitted, their
V(I/O) requirements must be the same.
CAUTION If the VP 110/01x is not correctly configured to match the PMC module V(I/O)
requirements, it may result in damage to the module or the VP 110/01x.
Setting the the correct PMC V(I/O) voltage on the VP 110/01x requires the positioning of a
detachable polarizing key for each PMC site, and the setting of a board jumper. Figure 2-9
shows the location of the key for both 5V and 3.3V V(I/O) configurations, and how to fit the PMC
module to the VP 110/01x board. Figure 2-10 shows the location and settings for the PMC
V(I/O) jumper.
NOTE The PMC V(I/O) voltage is determined by a combination of the PMC polarizing key
position and the V(I/O) Jumper. The PMC V(I/O) will be set for which ever gives
the highest voltage setting. It is recommended that the polarizing keys and the
jumper are set for the same voltage.
NOTE It is not possible to fit the polarizing key in the 3.3V position for PMC site 2. When
a PMC module requiring 3.3V V(I/O) is fitted to PMC site 2, the V(I/O) setting is
determined only by the V(I/O) Jumper setting.
2-12 VP 110/01x
Hardware Installation
VP 110/01x
Front Panel
4 x M2.5 x 6mm
Sc
r
e
w
s
CMC Bezel
10mm
Standoff
5 Volt Key
Only one key
must be fitted
3.3 Volt Key
PM
C
Module
1
2
3
Figure 2-9 PMC Installation Diagram