MSI MS-9656 series - Manual (Page 26)

2-14
MS-9656 Server Board
Front Panel Connector: JAPP1, JAPP2, JAPP3 (Optional)
These are proprietary front panel connectors that provide I 2 C bus connection, serial
signal connection, and electrical connection to the front panel switches/LEDs.
PIN SIGNAL PIN SIGNAL
1 +5VSB 2 GND
3 RESET+ 4 GND
5 POWER+ 6 GND
7 COM2 RXD 8 GND
9 COM2 TXD 10 NC
11 ATX PWR OK 12 GND
13 ID_LED+ 14 ID_LED-
JAPP1 Pin Definition
JAPP2
1 5
2 6
JAPP2 Pin Definition
PIN SIGNAL
1 +5VSB
2 GND
3 I 2 C_DATA
4 ID_LED+
5 I 2 C_CLK
6 ID_LED-
PIN SIGNAL PIN SIGNAL
1 Power LED + 2 SYS_LED +
3 Power LED - 4 SYS_LED -
5 Power Button + 6 LAN1_LED +
7 Power Button - 8 LAN1_LED -
9 ID LED + 10 LAN2_LED +
11 ID LED - 12 LAN2_LED -
13 ID Button + 14 Reset +
15 ID Button - 16 Reset -
17 HDD LED + 18 HDD LED -
19 +5VSB 20 +5VSB
JAPP3 Pin Definition
JAPP1
14 13
2 1
JAPP3
20 19
1 2