EKF SC1-ALLEGRO, User Manual

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User Guide • SC1-ALLEGRO •
CompactPCI ® Serial
CPU Board • Intel® i7-3xxx Processor
DisplayPort Connectors
The Intel® i7 processors used on SC1-ALLEGRO are equipped with an integrated graphics controller,
which supports DisplayPort and SDVO interfaces permitting simultaneous independent operation of
up to three displays. Two DP receptacles are available from the SC1-ALLEGRO 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 J-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 protected by a self resetting PolySwitch fuse 0.75A. 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 SC1-ALLEGRO. For attachment of either a classic style analog RGB monitor,
DVI or HDMI type display to the J-DP 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 must not connect the pins 20 of both cable ends, in order to
avoid a back driving conflict. Unfortunately there are cable assemblies available with pin 20 passed
through, with unpredictable results on the system behaviour. Before ordering DP cable assemblies,
verify the associated wiring diagram.
Sample VESA Compliant Mini DisplayPort Cable Assemblies
2.0m Mini DisplayPort (mDP) to DisplayPort (DP) plug to plug cable assembly, VESA compliant
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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