Intermec EasyCoder 501 XP Installation Instructions Manual page 9

Chapter 3
Serial Port Confi guration "uart2:"
Introduction
RS-232
Fit RS-232 circuit 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)
8
The serial communication port "uart2:" can be confi gured for
one of 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. There can only be one driver circuit and its
corresponding straps fi tted at a time.
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 chap-
ter.) Also take care so all "legs" of the circuits fi t into their
respective slots in the socket and are not bent. Also, take
proper precautions so as to protect the board and circuits from
electrostatic discharges.
UART3
UART2
EasyCoder XP- & F-Series Double Serial Interface Board – Installation Instructions Ed. 2
Caution!
R35
F32
RS232: IC11
RS422nonisol.: IC12, S5
F24
RP2
IC14 20mA CL: IC13, IC14, S6
F20
F23
F31
F34
F15
F16
F17
F18
R30 +
F25
+
IC13
R23
IC12
F33
F30
R22
R27 R29
RS232: IC2
P4
RS485: IC4, S3, S4*
RS422isolated: IC3, S2, S4
RS422nonisol.: IC18, S1,S4
* Term. if end of cable
R11
F10
F11
R6
F12
R7
F13
F14
R4
F9
R5
F8
R10
F6
F5
F4 S4
IC18
F3
F7
C11
F2
F1
IC4 IC3
P3
1-971613-00.A01
IC10
C8
+
R20
R21
S5
C10
S6
IC11
IC15
C7
IC7
R3
R2
C2
R1
C3
R15
+
+
+
+
S3
IC6
S2
S1
IC2
P2
C1
R13
R12
R14
R8
C5
IC5
P1