Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 52)

Choosing Module Features
Chapter 3
3Ć10
Setting the Module's Programming Plugs
Implement your choice of cable configuration by setting programming
plugs inside the module. Remove the module’s left-hand cover plate (the
one without the labels). Locate and adjust the programming plugs
according to Figure 2.8.
NOTE: The locations of programming plug sockets (Figure 2.8) are
labeled El thru E16 on the printed circuit board. The settings of
programming plugs are defined as follows:
IN refers to the plug jumpering the pair of pins at the designated
location.
1-2 or 2-3 refers to the pins on which you insert the plug. Pins 1 and
3 are labeled on the circuit board next to the pins.
OUT refers to removing the plug or inserting it on only one pin
(electrically floating). You can store up to four plugs in the area
labeled JUMPER STORAGE at the right-hand side of the board.
SPECIAL CASE When operating an ASCII device in RS-232-C simplex
write mode without a transmit line from the ASCII device (Figure 2.7),
jumper pin 2 to pin 18 at the cable connector (module end of cable) and
insert a programming plug in location E16 on the ASCII module.
Re-assemble the module after you have finished setting and/or checking
the programming plugs.