Intel MB890 Computer Hardware User Manual


 
INSTALLATIONS
CN4: Parallel Port Connector
Signal Name Pin # Pin # Signal Name
Line printer strobe 1 14 AutoFeed
PD0, parallel data 0 2 15 Error
PD1, parallel data 1 3 16 Initialize
PD2, parallel data 2 4 17 Select
PD3, parallel data 3 5 18 Ground
PD4, parallel data 4 6 19 Ground
PD5, parallel data 5 7 20 Ground
PD6, parallel data 6 8 21 Ground
PD7, parallel data 7 9 22 Ground
ACK, acknowledge 10 23 Ground
Busy 11 24 Ground
Paper empty 12 25 Ground
Select 13 N/A N/A
CN5, CN8: 1394 Connectors (option)
CN6: RJ45 and 2 USB Ports
CN6 is a stacked connector with RJ45 on top and 2 USB ports at the
bottom.
CN7: COM1 and COM2 Serial Ports
CN7 is a stacked connector with COM1 on top and COM2 at the bottom.
Signal Name Pin # Pin # Signal Name
DCD, Data carrier detect 1 6 DSR, Data set ready
RXD, Receive data 2 7 RTS, Request to send
TXD, Transmit data 3 8 CTS, Clear to send
DTR, Data terminal ready 4 9 RI, Ring indicator
GND, ground 5 10 Not Used
16 MB890 User’s Manual