Zebra Technologies R-140 - Manual (Page 111)

RS-422/RS-485 Interconnections
The printer may be connected to a host by either an RS-422 or an RS-485
interface. The DB-25 connector on the rear of the printer uses specific pins
for this purpose. Figure 40 illustrates the required cable wiring for
interconnecting to the printer’s DB-25 connector. Figure 41 illustrates the
internal connections of the printer’s RS-422 or RS-485 connector.
102 Zebra R-140 User’s Guide
Male DB-25
to printer
1
11
13
14
16
19
Data input B(-)
Data input A(+)
Data output B(-)
Data output A(+)
Frame ground
Signal ground ref.
Figure 40
+5 VDC source
Data output B(-)
Data output A(+)
Data input B(-)
Data input A(+)
Signal ground reference
Frame ground
9
14
19
13
16
11
1
1 Amp
10k
10k
100
20k
F1
+5 V
+5 V
RS-422/RS-485 connector
rear panel DB-25S
Figure 41