Diskette Drive Bus Connector Pinouts (J18); Parallel Bus Connector Pinouts (J16); Com1/Com2 Serial Line Connector Pinouts (J4) - AlphaPC 164 User Manual

Table 9 Diskette Drive Bus Connector Pinouts (J18)
Pin Signal Pin
1 GND
5 GND
9 GND 10
13 GND 14
17 GND 18
21 GND 22
25 GND 26
29 ID0 30
33 ID1 34
Table 10 Parallel Bus Connector Pinouts (J16)
Pin Signal Pin
1 STB
5 PD3
9 PD7 10
13 SLCT 14
17 SLIN 18
21 GND 22
25 GND —
Table 11 COM1/COM2 Serial Line Connector Pinouts (J4)
COM1 Pin
(Top) COM1 Signal
1 DCD1
2 RxD1
3 TxD1
4 DTR1
5 SG1
6 DSR1
7 RTS1
8 CTS1
9 RI1
Signal Pin
2 DEN0 3
6 DEN1 7
MTR0 11
DR0 15
DIR 19
WDATA 23
TRK0 27
RDATA 31
DSKCHG —
Signal Pin
2 PD0 3
6 PD4 7
ACK 11
AFD 15
GND 19
GND 23
— —
COM2 Pin
(Bottom)
1
2
3
4
5
6
7
8
9
Signal Pin Signal
GND 4 NC
GND 8 INDEX
GND 12 DR1
GND 16 MTR1
GND 20 STEP
GND 24 WGATE
GND 28 WRTPRT
GND 32 HDSEL
— — —
Signal Pin Signal
PD1 4 PD2
PD5 8 PD6
BUSY 12 PE
ERR 16 INIT
GND 20 GND
GND 24 GND
— — —
COM2 Signal
DCD2
RxD2
TxD2
DTR2
SG2
DSR2
RTS2
CTS2
RI2
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