Intel SC450NX - Server Platform - 0 MB RAM, Product Manual

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Serial Ports A and B
OM04415
1 5
6 9
Table 41. Serial Port A (External) Connector Pinout
Pin Signal Description
1 DCD Data carrier detected
2 RXD Receive data
3 TXD Transmit data
4 DTR Data terminal ready
5 GND Ground
6 DSR Data set ready
7 RTS Request to send
8 CTS Clear to send
9 RIA Ring indication active
Universal Serial Bus
The SC450NX MP server provides a single, external Universal Serial Bus (USB) connector at the
back panel and an internal header to be used with device bay expansion. Table 42 lists the pinout
for the external USB connector. Table 43 lists the pinout for the internal USB header.
OM08036
4 1
Table 42. USB External Connector Pinout
Pin Signal Notes
1 VCC Cable power
2 Data - Data (differential pair negative)
3 Data + Data (differential pair positive)
4 GND Cable ground
Table 43. USB Internal Header Pinout
Pin Signal Notes
1 N/C
2 Data - Data (differential pair negative)
3 Data + Data (differential pair positive)
4 GND Cable ground