Specifications

Table Of Contents
Chapter 6 EIA-422 asynchronous interface 31
EIA-422 software handshaking (XON/XOFF) cable
Use the following table as a guide for EIA-422 wiring. Pin numbers have
been omitted because they vary from product to product. For Digi pin
numbers, see the section titled "Digi EIA-422 connector wiring" on page 30.
For peripheral device pin numbers, see the documentation for your
peripheral device.
EIA-422 hardware handshaking (ready/busy) cable
Use the following table as a guide for EIA-422 wiring. Pin numbers have
been omitted because they vary from product to product. For Digi pin
numbers, see the section titled "Digi EIA-422 connector wiring" on page 30.
For peripheral device pin numbers, see the documentation for your
peripheral device.
DTE (Digi end) DTE (peripheral)
Signal Lead Lead Signal
TxD
+
Connected to
+
RxD
-
Connected to
-
RxD
+
Connected to
+
TxD
-
Connected to
-
GND Connected to - GND
RTS
Jumpered, connect:
RTS(+) to CTS(+);
RTS(-) to CTS(-)
Jumpered, connect:
RTS(+) to CTS(+);
RTS(-) to CTS(-)
RTS
CTS CTS
DTE (Digi end) DTE (peripheral)
Signal Lead Lead Signal
TxD
+
Connected to
+
RxD
-
Connected to
-
RxD
+
Connected to
+
TxD
-
Connected to
-
RTS
+
Connected to
+
CTS
-
Connected to
-
CTS
+
Connected to
+
RTS
-
Connected to
-
GND Connected to GND