Owner manual

20
Installing the Motherboard
JP1~JP2: COM1~4 Ring function selectors
LPT: LPT header
Pin Signal Name
COM4: Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to
your system.
1 VCC5 2 VCC5
3 XNRI1 4 XNRI2
Pin Signal Name Pin Signal Name
5 VCC12 6 VCC12
7 XNRI1
8 XNRI2
9 NRI1 10 NRI2
1 STB# Strobe 2 D0 Data 0
3 D1 Data 1 4 D2 Data 2
5 D3 Data 3 6 D4 Data 4
7 D5 Data 5
8 D6 Data 6
9 D7 Data 7 10 ACK# Acknowledge
Pin Signal Name Function Pin Signal Name Function
11 BUSY Busy 12 PE Paper End
13 SLCT Select
14 AFD# Auto Feed
15 ERR# Error 16 INIT# Initialize
17 SLIN# Select In 18 GND Chassis Ground
19 GND Chassis Ground 20 GND Chassis Ground
21 GND Chassis Ground 22 GND Chassis Ground
24 GND Chassis Ground
26 NC No pin
23 GND Chassis Ground
25 GND Chassis Ground
1 DCDB 2 RxD
3 TxD 4 DTRB
Pin Signal Name Pin Signal Name
5 Ground 6 DSRB
7 RTSB 8 CTSB
9 RI
10 KEY