Rel a y, Microcontroller, Figure 1.2 – simplified block diagram – B&B Electronics RS-232 Digital Relay I/O 232DRIO User Manual
Page 6: Packing list, 232drio specifications

4 232DRIO-0308
Manual
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5104
Figure 1.1 – 232DRIO Module
Figure 1.2 – Simplified Block Diagram
Packing List
Examine the shipping carton and contents for physical damage.
The following items should be in the shipping carton:
1. 232DRIO
unit
2. Software
3. This instruction manual
If any of these items are damaged or missing contact B&B
Electronics immediately.
232DRIO Specifications
Non-polarized, Optically Isolated Input
REL
A
Y
SP
DT
REL
A
Y
SP
D
T
#2 N/O
#2 N/C
#2 Com
#1 N/O
#1 N/C
#1 Com
GND
+12Vdc
POWER
Microcontroller
TD
RD
+5V
RS-232
Transceiver
Serial Port
DB-9S
5-30 Vdc/Vac
Input
Opto
Isolator
R
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