7.11 Serial Port Connector; Table 32. External Db9 Serial A Port Pin-Out (J8A1); Table 33. 9-Pin Header Serial B Port Pin-Out (J1B1) - Intel SE7221BK1LX Technical Manual

7.11 Serial Port Connector

Two serial ports are provided on the Intel® Server Board SE7221BK1-E.
A standard, external DB9 serial connector is located on the back edge of the baseboard
to supply a Serial A interface. This connector is combined with VGA connector (J8A1)
A Serial B port is provided through a 9-pin header (J1B1) on the server board.
The following tables detail the pin-outs of these two ports.
36
Signal Name
GND
Unused
GND
GND
GND
GND
Unused
GND
GND
GND

Table 32. External DB9 Serial A Port Pin-out (J8A1)

Signal Name
DCD-P
RXD-P
TXD-P
DTR-P
GND

Table 33. 9-pin Header Serial B Port Pin-out (J1B1)

Signal Name
DCDB
RXDB
TXDB
DTRB
GND
SE7221BK1-E Technical Product Specification
Pin Pin Signal Name
15 16 FDMTR1#
17 18 FDDIR
19 20 FDSTEP#
21 22 FDWDATA#
23 24 FDWGATE#
25 26 FDTRK0#
27 28 FLWP#
29 30 FRDATA#
31 32 FHDSEL#
33 34 FDSKCHG#
Pin Pin Signal Name
T1 T6 DSR-P
T2 T7 RTS-P
T3 T8 CTS-P
T4 T9 RI-P
T5
Pin Pin Signal Name
1 2 DSRB
3 4 RTSB
5 6 CTSB
7 8 RIB
9 10 Key