PC4-PRESTO • CompactPCI
®
PlusIO • 4
th
Generation Intel
®
Core™-4xxx Processor
DisplayPort Connectors
The Intel
®
Core
TM
processors used on PC4-PRESTO are equipped with an integrated graphics
controller, which supports DisplayPort and DVI interfaces permitting simultaneous independent
operation of up to three displays. Two DP receptacles are available from the PC4-PRESTO front panel,
as mDP (Mini DisplayPort) connectors, which is a space saving alternate to the standard DP connector
and is also specified by the VESA.
Mini DisplayPort P-DP1/2
20
PWR
1)
19
GND
18
AUX_CH(N)
17
LANE2(N)
16
AUX_CH(P)
15
LANE2(P)
14
GND
13
GND
12
LANE3(N)
11
LANE1(N)
10
LANE3(P)
9
LANE1(P)
8
GND
7
GND
6
CONFIG2 (GND)
5
LANE0(N)
4
CONFIG1
3
LANE0(P)
2
Hot Plug Detect
1
GND
1)
+3.3V via 0.5A current-limited electronic power switch. This voltage is switched on in S0 state only.
Most DisplayPort monitors come with the standard DP connector, hence requiring a mDP to DP cable
assembly for use with the PC4-PRESTO. For attachment of either a classic style analog RGB monitor,
DVI or HDMI type display to the P-DP1/2 receptacles, there are both adapters and also adapter cables
available.
Specified by the VESA DisplayPort connector standard is a dedicated power pin 20 (+3.3V 0.5A). Both
the GPU (source side) and a DP monitor (sink side) must provide power via this pin. A VESA specified
standard DisplayPort cable however should not connect the pins 20 of both cable ends, in order to
avoid a back driving conflict. Fortunately the PC4-PRESTO takes care about this situation. Nevertheless,
before ordering DP cable assemblies, EKF recommends to verify the associated wiring diagram.
Sample VESA Compliant Mini DisplayPort Cable Assemblies
EKF Part. #270.66.2.02.0
Astron
T2M2M20020-R
Molex
0687850003
Roline
1045636
Wieson
G9858
1
2
20
19
270.61.20.0
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KF
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