Intermec EasyCoder 501 XP & 601 XP – Service Manual
150
Chapter 16 Interfaces
C7
R12
R15
R14
R13
R9
R8
R3
R2
R1
JP1
IC7
IC6
IC5
IC2
IC1
C15
C14
C13
C12
C11
C6
RP1
C5
C4
C3
C2
C1
C10
D1
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
IC3
IC4
IC18
JP2
P1
P2
P3
P4
R4
R5
R6
R7
R11
R10
RS422nonisol.: IC18, S1,S4
S3
+
+
+
+
S1
S2
S4
RS232: IC2
RS422isolated: IC3, S2, S4
RS485: IC4, S3, S4*
* Term. if end of cable
C8
C9
R20
R21
R23
R22
R30
R35
R33
R32
R34
R31
R26
R28
R25
R24
R27 R29
IC15
D2
IC10
F32
F24
F20
F23
RP2
F31
F34
F15
F16
F17
F18
F25
F33
F30
IC12
IC13
IC14
IC11
C119
C18
C17
C16
+
+
+
JP3
S5
S6
1-971613-00.A01
UART3
UART2
20mA CL: IC13, IC14, S6
RS232: IC11
RS422nonisol.: IC12, S5
* Term. if end of cable
RS485: IC4, S3, S4*
RS422isolated: IC3, S2, S4
RS232: IC2
RS422nonisol.: IC18, S1,S4
16.6 Double Serial
Interface Board, cont.
"uart2:" Confi guration
The serial communication port "uart2:" can be confi gured for four
different types of serial communication:
• RS-232
• RS-422 non isolated
• RS-422 isolated
• RS-485
By fi tting or removing certain circuits and straps, the desired type
of interface can be selected. This is either done at factory or by the
customer.
Caution!
When fi tting circuits yourself, do it before connecting the inter-
face board and make sure that the circuits are not fi tted upside
down (see front end markings in the illustrations in this chapter.)
Also take care so all “legs” of the circuit fi t into their respective
slots in the socket and are not bent. Also, take proper precau-
tions so as to protect the board and circuits from electrostatic dis-
charges.
"uart2:" RS-232 (standard confi guration)
RS-232 circuit fi tted on IC2
No circuits on IC3, IC4 or IC18
Strap on S4 deactivated
(fi tted on one pin only)
Strap on S1 deactivated
(fi tted on one pin only)