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Intel® SHG2 DP Server Board Technical Product Specification
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.
Pin
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.
Pin
Signal
1
STROBE_L
2
Data bit 0
3
Data bit 1
4
Data bit 2
5
Data bit 3
6
Data bit 4
7
Data bit 5
8
Data bit 6
9
Data bit 7
10
ACK_L (acknowledge)
11
BUSY
12
PE (paper end)
13
SLCT (select)
Revision 1.0
Table 52. Serial B Port Header: COM2/EMP
[Key-L]
Signal
Table 53. Parallel Port Connector
[Key-G]
Parallel Port Connector
13
25
Intel Order Number C11343-001
Serial Port Header
Pin
14
AUFDXT_L (auto feed)
15
ERROR_L
16
INIT_L (initialize printer)
17
SLCTIN_L (select input)
1
18
GND (ground)
19
GND
20
GND
21
GND
14
22
GND
23
GND
24
GND
25
GND
Connections
Signal
67
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