Product specifications

1
1
2
2
3
3
4
4
A A
B B
C C
D D
with Bipolar drivers and receivers
COM1, COM2 AND IR
COM1
COM2
PRINTER
VT5228C (Preliminary) 0.1
PRINTER / COM PORT
VIA TECHNOLOGIES, INC.
C
17 20Wednesday, November 24, 1999
Title
Size Document Number Rev
Date: Sheet of
+12V
TXD1
RTS1
DTR1
DCD1
RXD1
DSR1
CTS1
RI1
-12V
+12V
TXD2
RTS2
DTR2
DCD2
RXD2
DSR2
CTS2
RI2
-12V
ACK
P_PRD0
P_PRD1 BSY
P_PRD2
P_PRD3 PE
P_PRD5
P_PRD6 SCLT
P_PRD7
P_PRD4
TXD2
RTS1
DTR1
DCD1
DSR1
CTS1
RI1
RTS2
DTR2
DCD2
RXD2
DSR2
CTS2
RI2
TXD1
RXD1
P_ERROR
P_AUTOFD
P_STROBE
P_INIT
P_SLCTIN
P_PRD0
P_PRD1
P_PRD2
P_PRD3
P_PRD4
P_PRD5
P_PRD6
P_PRD7
P_BUSY
P_PE
P_SLCT
P_ACK
-XRI1
-XRI2
VCC
VCC +12V
VCC
-12V
RN11
8P4R 33
1
3
5
7
2
4
6
8
RN10
8P4R 33
1
3
5
7
2
4
6
8
R28
2K
C48
180PF
C36
180PF
C35
180PF
C33
180PF
C30
180PF
U1
GD75232
VCC
20
DA1
16
DA2
15
DA3
13
RY1
19
RY2
18
RY3
17
RY4
14
RY5
12
GND
11
VCC1
1
DY1
5
DY2
6
DY3
8
RA1
2
RA2
3
RA3
4
RA4
7
RA5
9
VCC2
10
U4
GD75232
VCC
20
DA1
16
DA2
15
DA3
13
RY1
19
RY2
18
RY3
17
RY4
14
RY5
12
GND
11
VCC1
1
DY1
5
DY2
6
DY3
8
RA1
2
RA2
3
RA3
4
RA4
7
RA5
9
VCC2
10
C49
180PF
C51
180PF
C44
180PF
C43
180PF
C42
180PF
C41
180PF
C37
180PF
C38
180PF
C39
180PF
C40
180PF
C50
180PF
C46
180PF
RN2
8P4R 2K
1 3 5 7
2 4 6 8
RN5
8P4R 2K
1 3 5 7
2 4 6 8
RN4
8P4R 2K
1 3 5 7
2 4 6 8
RN3
8P4R 2K
1 3 5 7
2 4 6 8
RN12
8P4R 33
1
3
5
7
2
4
6
8
C29
100p
C28
100p
C32
100p
C25
100p
C27
100p
C34
100p
C31
100p
C26
100p
C47
100p
C75
100p
C76
100p
C73
100p
C45
100p
C53
100p
C74
100p
C52
100p
CN2A
PRINT PORT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
CN2C
COM9B
35 40
36 41
37 42
38 43
39
CN2B
COM9A
26 31
27 32
28 33
29 34
30