Samsung SRP-350PG - SRP 350 B/W Direct Thermal Printer Service Manual page 55

7 Special Circuit Descriptions
7-4 I/F PBA Detect Block Diagram
I/F PBA
RS-232C
RS-485
IEEE1284
USB
NO CONNECTION
I/F SEL(OUT)
C1 (IN)
C2 (IN)
C3 (IN)
7-4
DIP_C1
L
L
H
H
L
Table 7-2 I/F PBA Detector Descriptions
C1,C2,C3 = H,L,L



IEEE1284 PBA
Table 7-6 I/F PBA Detector Block Diagram
DIP_C2
L
H
L
H
L
I/F SEL is executed only one time
after RESET.
Samsung Electro-Mechanics
DIP_C3
H
L
L
L
L