User's Manual

DIGITAL-LOGIC AG MSM855/HLV/B/B2 Detailed Manual V1.0A
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13.4. Description of the Connectors for V0.4
Note…
Only the following connectors are different to the newer board version. All other connectors are
the same. Therefore, please refer to Chapter 6 for the other connectors.
J16 Main Switch Connector, 2pin
Pin Signal Pin Signal
1 Main Switch 2 GND
 Used for connecting the ATX–compatible toggle switch (momentary close between Pins 1 and 2).
 If this jumper is closed until the main supply powers up, the computer system starts by booting.
 If this jumper is open until the main supply power up, then Pin1 (ATX-switch) must be tied to the
ground (Pin 2) to start the computer system (this is the ATX-function).
X8 Power Supply
Pin Signal Pin Signal
1 GND 2 Main supply +5Vo
3 Main switch (=J16 Pin1) 4 +12V
5 Reserved for AC-Present 6 Reserved for PWRBTN
7 GND 8 Main supply +5V
Remarks:
 The Main Switch is low active and internally pulled up to 3.3V.
 PWRBTN signal is low active and internally pulled up to 3.3V.
 12V are not used for onboard functions, only wired to the PC/104bus.
 The Main Supply is the only external (5V) supply used for this system.
X9 LVDS Interface
Pin Signal Pin Signal
1 LVDS_CLKAM 2 LVDS_CLKAP
3 NC 4 NC
5 LVDS_BKLC 6 LVDS_BKLEN
7 LVDS_VDDEN 8 NC
9 LVDS_YAM0 10 LVDS_YAM1
11 LVDS_YAM2 12 LVDS_YAM3
13 LVDS_YAP0 14 LVDS_YAP1
15 LVDS_YAP2 16 LVDS_YAP3
17 NC 18 NC
19 VCC3S 20 GND