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Intel® SHG2 DP Server Board Technical Product Specification Connections
Revision 1.0 Intel Order Number C11343-001
67
The COM2 serial port can be used either as an emergency management port (EMP) or as a
normal serial port. As an EMP, COM2 is used as a communication path by the Server
Management RS-232 connection to the BMC. This port can provide a level of emergency
management through an external modem. The RS-232 connection can be monitored by the
BMC when the system is in a powered down (standby) state.
Table 52 lists the signals present on the COM2 serial port header.
Table 52. Serial B Port Header: COM2/EMP
[Key-L]
Pin Signal Serial Port Header
1 SIODCD + 00_2 (carrier detect)
2 SIODSR + 00_2 (data set ready)
3 SIORXD - 00_2 (receive data)
4 SIORTS + 00_2 (request to send)
5 SIOTXD - 00_2 (transmit data)
6 SIOCTS + 00_2 (clear to send)
7 SIODTR + 00_2 (data terminal ready)
8 SIORI + 00_2 (ring indicator)
9 GROUND
10 KEY
8.10.4 Parallel Port
The IEEE 1284-compatible parallel port, used primarily for a printer, sends data in parallel
format. The parallel port is accessed through a D-subminiature 25-pin connector.
Table 53. Parallel Port Connector
[Key-G]
Pin Signal Parallel Port Connector Pin Signal
1 STROBE_L 14 AUFDXT_L (auto feed)
2 Data bit 0 15 ERROR_L
3 Data bit 1 16 INIT_L (initialize printer)
4 Data bit 2 17 SLCTIN_L (select input)
5 Data bit 3 18 GND (ground)
6 Data bit 4 19 GND
7 Data bit 5 20 GND
8 Data bit 6 21 GND
9 Data bit 7 22 GND
10 ACK_L (acknowledge) 23 GND
11 BUSY 24 GND
12 PE (paper end) 25 GND
13 SLCT (select)
13 1
25 14