AXIOMTEK SHB110 Series, Руководство пользователя

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SHB110 Socket M Full-Size SBC User’s Manual
Jumpers and Connectors
13
2.4.5 Serial Port Interface Connectors: COM1, COM2
The serial interface for the board consists of COM1 port (COM1) and
COM2 (COM2) supports RS-232/RS422/RS485.
Pin Signal Pin Signal
1
Data Carrier Detect
(DCD)
2
Data Set Ready (DSR)
3 Receive Data (RXD) 4 Request to Send (RTS)
5 Transmit Data (TXD) 6 Clear to Send (CTS)
7
Data Terminal Ready
(DTR)
8
Ring Indicator (RI)
9 Ground (GND) 10 NC
COM1, COM2
2
4
6
1
3
5
7
8
9
10
2.4.6 Floppy Disk Port Connector: FDD1
The board provides a 34-pin header type connector, FDD1, supporting
up to two floppy drives. The floppy drives may be any one of the
following types: 5.25" 360KB/1.2MB and 3.5" 720KB/1.44MB/2.88MB.
Pin Signal Pin Signal Pin Signal
1 GND 2 Reduce write current 3 GND
4 N/C 5 GND 6 N/C
7 GND 8 Index # 9 GND
10 Motor enable A # 11 GND 12 Drive select B #
13 GND 14 Drive select A # 15 GND
16 Motor enable B # 17 GND 18 Direction #
19 GND 20 STEP # 21 GND
22 Write data # 23 GND 24 Write gate #
25 GND 26 Track # 27 GND
28 Write protect # 29 GND 30 Read data #
31 GND 32 Side 1 select # 33 GND
34 Disk change #