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Intermec EasyCoder 501 – Service Manual Ed. 7
Chapter 21 RS-422/485 Interface Board
21.4 Components Diagram
RS-422/485 Interface Board 1-971708-40
P5
P2
F11
IC2
IC3
IC7
IC1
RN1
D2
R4
F1
C8
C4
Q1
C3
R7
C1
Y1
P3
P6
+5V EXT
C19
+
P4
F5
F6
F7
F8
F9
F12
F10
IC10
IC8
IC6
IC5
IC4
C12 +
C15 +
C14 +
+ C13
R1
R3
R6
R2
R5
RN2
2-WIRE
4-WIRE
C7
P9
P8
MASTER
R13
R14
P10 P11
R15 R16
END
F2
F3
F4
D1
C20
+
S1
S2
S3
S4
S5
P7
R9
R10
R11
R12
C17
C16
R8