User Guide

485SDD16-1005 Manual Appendix C C-3
B&B Electronics -- 707 Dayton Road -- Ottawa, IL 61350
PH [phone] -- FAX [phone]
DBM16
The DBM16 module provides buffering and increased power
handling for all the sixteen I/O lines of the SDD16 models. Each of
the I/O lines can be programmed as an input or as an output by
setting a jumper on the board. The DBM16 plugs directly into the
SDD16's DB25S I/O Port connector. Terminal blocks are provided
for all I/O line, power, and ground connections. Refer to Table C.2.
An enclosure for the DBM16 is available.
Table C.1 - DTB25 Connections
DB-25P
Pin # Function
T.B.
#
DB-25P
Pin # Function
T.B.
#
1 Unused. 1 14 I/O #15 14
2 Unused. 2 15 I/O #14 15
3 Unused. 3 16 I/O #13 16
4 Unused. 4 17 I/O #12 17
5 Unused. 5 18 I/O #11 18
6 Unused. 6 19 I/O #10 19
7 Ground 7 20 Unused. 20
8 +12Vdc Input 8 21 I/O #9 21
9 I/O #0 9 22 I/O #8 22
10 I/O #1 10 23 I/O #7 23
11 I/O #2 11 24 I/O #6 24
12 I/O #3 12 25 I/O #5 25
13 I/O #4 13
C-4 Appendix C 485SDD16-1005 Manual
B&B Electronics -- 707 Dayton Road -- Ottawa, IL 61350
PH [phone] -- FAX [phone]
Table C.2 - DBM16 I/O Connections
T.B.1
Label Function
T.B.2
Label Function
I/O7 I/O Line #7 I/O8 I/O Line #8
GND Ground GND Ground
I/O6 I/O Line #6 I/O9 I/O Line #9
I/O5 I/O Line #5 I/O10 I/O Line #10
GND Ground GND Ground
I/O4 I/O Line #4 I/O11 I/O LIne #11
I/O3 I/O Line #3 I/O12 I/O Line #12
GND Ground GND Ground
I/O2 I/O Line #2 I/O13 I/O LIne #13
I/O1 I/O Line #1 I/O14 I/O Line #14
GND Ground GND Ground
I/O0 I/O Line #0 I/O15 I/O LIne #15
GND Ground
+12 +12Vdc Input
ITS Inductive-load
Transient
Suppression
DBM16 Interfacing
This section will show some general examples of how to
interface the DBM16 I/O lines to external devices. Caution must be
taken not to exceed the DBM16 specifications, failure to do so could
result in damage to the DBM16 and will void the warranty.
Before connecting the DBM16 to the SDD16 module and
connecting any external device to the DBM16 determine which I/O
lines on the SDD16 module are inputs and which are outputs. Once
the inputs and outputs are known, set the jumpers on the DBM16
accordingly. Refer to Figure C.2.