Intermec EasyCoder 501 XP & 601 XP – Service Manual
157
Chapter 16 Interfaces
16.6 Double Serial
Interface Board, cont.
Schematics 1
A11
A13
A15
A17
A19
A21
A23
A25
GND
V5.3
EDRDY
RAS2
CAS0
CAS1
INTH2
GND
A24
A22
A20
A18
A16
A14
A12
A10
GND
CS2
CS31
CS4
CS5
DREQ
DRDE
DWRE
V5.3
GND GND
A9
CLK8
D0
D1
D2
D3
D4
D5
D6
D7
A2
A3
A4
IOWR
IORD
RESET
IOWAIT
WR
RD
MWR1
MWR0
SA1
INT
IOEN
SDA
SCL
IOCS
RESET
CLK8
V5.3
V5.3
GND
GND
SA0
GND
GND
IOWR
IORD
A1
A0
A9
A8
A7
A6
A5
A4
A3
A2
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
UARTCS2
INT2
RESET
INT3
UARTCS3
CLK8
A7
INT
SDA
SCL
VCC
SA1
SA0
V5.3
RESET
RESET
SCHEMATIC
UART 3
non-isolated
isolated
RS422 driver
SHIELD 422/485
+RS485
-RS422O/-RS485
-RS422I
+RS422I
DTR
CTS
RTS
RxD
TxD
GND
DSR
+5V
RI
S1
S2
S4
RS422 driver
RS485 driver
RS232 driver
S3
RS422 non-isol: IC18, S1, S4
RS232: IC2, NO STRAPS
RS422 isol: IC3, S2, S4
RS485: IC4, S3, S4 IF END OF CABLE
CONFIGURATION
S2 RS422 ISOLATED
S3 RS485
S1 RS422 NONISOLATED
STRAPPING INFORMATION
S4 TERM. RESISTOR ENABLE
A
B
Y
GND
GND
RO
DI
GND
DO-
DO+
RI-
RI+
VCC
VCC
GND
C1+
C1-
C2+
C2-
V+
V-
T1IN
T2IN
T3IN
T4IN
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R1OUT
R2OUT
R3OUT
R4OUT
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
RO
VCC1
VCC2
D1
D2
GND1
SD
VCC3
DI
VCC4
GND2
FS
IRLED
IVCC2
IDIDRV
ICOM1
Y
Z
B
IRODRV
A
IVCC1
AC2
AC1
VCC
GND
CGND
CGND
GND
VCC
VCC
GND
VCC
GND
A
B
Y
D0
D1
D2
D3
D4
D5
D6
D7
RD
WR
CS0
INTR
DTR
RTS
SOUT
SIN
CTS
DSR
DCD
RD
WR
CS1
CS2
OUT1
OUT2
TXRDY
RXRDY
DDIS
A0
A1
A2
ADS
MR
XIN
XOUT
BAUDOUT
RCLK
RI
NC
NC
NC
NC
A
B
Y
GND
A
B
Y
A0
A1
A2
WP
SCL
SDA
VCC
GND
GND GND
VCC
VCC
VCC
GND
V24
IOBUS
UARTCS3
RESET
VCC
GND
INT3
CLK8
V24
CGND
CGND
V24
6
4
5
1
2
3
4
5
2
3
45
6
7
8
1
10
12
13
14
11
15
5
18
19
21
2
1
24
20
7
3
23
16
6
4
22
17
1
2
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
3
4
5
7
8
9
10
12
11
6
13
14
15
16
17
18
19
21
20
22
23
24
4
3
65
98
11 10
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
11
13
12
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
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
3
1
2
8
9
10
1
2
3
7
6
5
8
4
12
13
>=1
>=1
>=1
>=1
EEPROM
74HC32
IC6B
R15
R12
R14
R13
JP1
R9
DS8921
IC18
C14
C15
MAX238
IC2
C13
C12
JP2
MAX1480
IC4
MAX1490
IC3
74HC04
IC7B
74HC04
IC7C
74HC04
IC7D
74HC04
IC7E
R1
R11
R10
R2
R3
R4
R5
R6
R7
F13
F14
F11
F12
F10
P3
F8
F9
F6
F5
F4
F3
F2
F7
F1
RP1
74HC32
IC6D
P2A P2B
IC1
16550
P1B
P1A
74HC32
IC6A
74HC32
IC6C
24C01
IC5
R8
C10
C9
C8
C1
C2 C3 C4
C7
C6
C5
D1
C11
74HC04
IC7F
Schematics #2
1-971613-25 Double Serial Interface pcb.