Intermec EasyCoder 501 XP & 601 XP – Service Manual
147
Chapter 16 Interfaces
16.5 Serial/Industrial
Interface Board, cont.
Schematics 1
IIRD
IIEN
INT
UARTCS
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A2
A3
A4
A5
A6
A7
A8
A9
A0
A1
IORD
IOWR
GND
GND
SA0
GND
GND
V5.3
V5.3
CLK8
RESET
IOCS
SCL
SDA
IOEN
INT
SA1
MWR0
MWR1
RD
WR
IOWAIT
RESET
IORD
IOWR
A4
A3
A2
D7
D6
D5
D4
D3
D2
D1
D0
CLK8
A9
GND
GND
V5.3
DWRE
DRDE
DREQ
CS5
CS4
CS31
CS2
GND
A10
A12
A14
A16
A18
A20
A22
A24
GND
INTH2
CAS1
CAS0
RAS2
EDRDY
V5.3
GND
A25
A23
A21
A19
A17
A15
A13
A11
V5.3
V24
IOWR
IORD
IIWR
SA0
SA1
VCC
RESET
RESET
A8
SCL
SDA
IIEN
S3
RS232 driver
RS485 driver
RS422 driver
S4
S2
S1
RI
+5V
DSR
GND
TxD
RxD
RTS
CTS
DTR
+RS422I
-RS422I
-RS422O/-RS485
+RS485
SHIELD 422/485
RS422 driver
isolated
non-isolated
See
Schematics 2
A
B
Y
NC
NC
NC
NC
RI
RCLK
BAUDOUT
XOUT
XIN
MR
ADS
A2
A1
A0
DDIS
RXRDY
TXRDY
OUT2
OUT1
CS2
CS1
WR
RD
DCD
DSR
CTS
SIN
SOUT
RTS
DTR
INTR
CS0
WR
RD
D7
D6
D5
D4
D3
D2
D1
D0
A
B
Y
A
B
Y
GND
A
B
Y
GND
VCC
A0
A1
A2
WP
SCL
SDA
VCC
GND
VCC
GND
GND
VCC
VCC
IOBUS
IIWR
IIRD
VCC
GND
IOEN
VCC
GND
CGND
CGND
GND
VCC
AC1
AC2
IVCC1
A
IRODRV
B
Z
Y
ICOM1
IDIDRV
IVCC2
IRLED
FS
GND2
VCC4
DI
VCC3
SD
GND1
D2
D1
VCC2
VCC1
RO
VCC1
VCC2
D1
D2
GND1
SD
VCC3
DI
VCC4
DE
GND2
RO
VCC5
FS
IRLED
ICOM2
IDEDRV
IVCC2
IDIDRV
ICOM1
IDEIN
IDIIN
A
IRODRV
B
IVCC1
AC2
AC1
C1+
C1-
C2+
C2-
V+
V-
T1IN
T2IN
T3IN
T4IN
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R1OUT
R2OUT
R3OUT
R4OUT
GND
VCC
RO
DI
GND
DO-
DO+
RI-
RI+
VCC
GND
VCC
GND
GND
GND
2
1
3
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
2
3
4
5
6
7
8
9
24
20
14
33
37
36
13
11
40
41
42
25
21
15
16
38
35
27
32
26
31
30
29
28
39
18
19
17
10
43
1
12
23
34
5
4
6
10
9
8
13
12
B25
B24
B23
B22
B21
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
A25
A24
A23
A22
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
12
13
11
1
2
3
7
6
5
8
4
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
10
11
8
9
5
6
12
34
1
2
3
4
5
7
8
9
10
12
11
6
13
14
15
16
17
18
19
21
20
22
23
24
1
2
3
4
5
7
8
9
10
11
12
13
14
6
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
10
12
13
14
11
15
5
18
19
21
2
1
24
20
7
3
23
16
6
4
22
17
2
3
45
6
7
8
1
1
2
3
4
5
>=1
>=1
>=1
>=1
EEPROM
74HC32
IC6A
P1A
P1B
16550
IC1
74HC32
IC6B
74HC32
IC6C
IC7F
74HC04
P2B
P2A
D1
C5
C6
C7
C4
C3
C2
C1
74HC32
IC6D
24C01
IC5
R8
C8
C9
C10
C
11
RP1
F1
F7
F2
F3
F4
F5
F6
F9
F8
P3
F10
F12
F11
F14
F13
R7
R6
R5
R4
R3
R2
R51
R50
R1
74HC04
IC7E
74HC04
IC7D
IC7C
74HC04
IC7A
74HC04
IC7B
74HC04
MAX1490
IC3
MAX1480
IC4
JP2
C12
C13
MAX238
IC2
C15
C14
DS8921
IC18
R52
JP1
R53
R54
R56
R55
1-971606-25 Serial/Industrial Interface pcb.