AC450NX Rack Server System Product Guide
212

Legacy Connector

The legacy connector on the PHP I/O baseboard provides the signals for the external legacy VGA,

serial, parallel, mouse, and keyboard peripheral ports.

Pin Signal Pin Signal Pin Signal Pin Signal
A1 VCC_STDBY A21 PP_STB_L B1 +5V B21 SP0_RTS_L
A2 KB_DATA A22 PP_SLIN_L B2 MS_DATA B22 GND
A3 KB_CLK A23 PP_INIT_L B3 MS_CLK B23 SP1_RTS_L
A4 +5V A24 PP_ERR_L B4 SIN_TTL_XIMB B24 SP0_CTS_L
A5 SOUT_TTL_XIMB A25 PP_AFD_L B5 SIN_TTL_COM2 B25 SP1_CTS_L
A6 PP_SLCT A26 I2C_BMC_SCL B6 SP0_DCD_L B26 RTL_TTL_FP_L
A7 PP_PE A27 DSR_TTL_FP B7 SP1_DCD_L B27 DTR_TTL_FP_L
A8 PP_BUSY A28 CTS_TTL_FP B8 SP0_SIN B28 DCD_TTL_FP_L
A9 PP_ACK_L A29 RT_TTL_FP B9 GND B29 I2C_BMC_SDA
A10 GND A30 COM2_TO_STD_EN B10 SP1_SIN B30 XIMB_SOUT_EN
A11 PP_DR7 A31 COM2_TO_FP_EN B11 SP0_RI_L B31 SOUT_TTL_COM2
A12 PP_DR6 A32 GND B12 SP1_RI_L B32 PWR_GOOD
A13 PP_DR5 A33 GND B13 GND B33 GND
A14 PP_DR4 A34 GND B14 SP0_DTR_L B34 GND
A15 GND A35 V_BLUE B15 SP1_DTR_L B35 V_VSYNC
A16 PP_DR3 A36 GND B16 SP0_SOUT B36 GND
A17 PP_DR2 A37 V_GREEN B17 SP1_SOUT B37 V_HSYNC
A18 PP_DR1 A38 GND B18 No connection B38 GND
A19 PP_DR0 A39 V_RED B19 SP0_DSR_L B39 VR_DDCDAT
A20 GND A40 GND B20 SP1_DSR_L B40 VR_DDCCLK

USB Port

OM06248
Pin Signal Description
A1 VCC Overcurrent monitor line port 0
A2 DATAL0 Differential data line paired with DATAH0
A3 DATAH0 Differential data line paired with DATAL0
A4 GND Ground potential
B1 VCC Overcurrent monitor line port 1
B2 DATAL1 Differential data line paired with DATAH1
B3 DATAH1 Differential data line paired with DATAL1
B4 GND Ground potential