Specifications

Jumper Configurations
Table A-1
Jumper Descriptions (continued).
JUMPER # DESCRIPTION
W14-W19,
W21-W22,
W29-W32
The following table shows jumper
assignments for use of serial port 2 (COM2)
as either an RS-232-C port in DCE or DTE
mode or as an RS-422/485 port. Factory
default is DCE mode, with the RS-422/485
drivers and receivers disabled.
Be sure to read the description of W13 if
using the RS-422/485 drivers and the de-
scription of W66 to enable COM2.
Figures A-3 through A-6 illustrate jumper
configurations for the COM2 options listed
below; also see W13 and W66 descriptions.
RS-232-C DCE † RS-232-C DTE RS-422/485
(IN) (OUT) (IN) (OUT) (IN) (OUT)
W14 -- W14 -- -- W14
W15B W15A W15B W15A W15A W15B
-- W16 -- W16 W16 --
W17B W17A W17B W17A W17A W17B
W18B W18A W18B-W19 W18A W18A W18B
W19 -- (CROSS) -- -- W19
W21B W21A W21B-W22 W21A W21A W21B
W22 -- (CROSS) -- -- W22
W29 -- W29 -- -- W29
W30 -- W30-W31 -- -- W30
W31 -- (CROSS) -- -- W31
W32 -- W32 -- -- W32
A-17