A&D Omniace III RA2300A Instruction Manual page 183

20.9.Event Box (RA23-146: Optional
This event box is the unit for check of both voltage input level (H level and L level)
Function
and contact input level (H: Short and L: Open). 16.inputs are usable.
The event box (RA23-146) comprises following elements:
1) Event box I/F (RA23-327)
Constitution
2) Event box (RA23-328)
3)
Specification
8-Pins DIN Connector (as seen from the inserting side of the plug)
Connector
Pin
assignment
RA2300A Recorder (7001754-R01)
Cable (0311-5257)
range of input
voltage
Voltage
input detection levels
input current
detection levels
Contact
input
load current
Connector 1 - 4 Connector 5 - 8
Pin Signal Pin
No assignment No
1 ch 1 input 1
2 ch 2 input 2
3 ch 3 input 3
4 ch 4 input 4
5 ground 5
6 +15 V 6
output
7 not 7
connected
8 not 8
connected
extras))
H-level: more than 2.5Vapproximately
L-level: less than 0.5 V approximately
open: no less than 2 k
short: no more than 250 
6 7
8
1 3
4 5
2
Connector 9 - 12
Pin
Signal
No
assignment
1
ch 5 input
2
ch 6 input
3
ch 7 input
4
ch 8 input
5
ground
6
+15 V
output
7
not
connected
8
not
connected
20-15
20. Specifications
0 - +24 V
no more than 1uA
2 mA (MAX)
Connector 13- 16
Signal Pin
assignment No assignment
ch 1 input 1 ch 5 input
ch 2 input 2 ch 6 input
ch 3 input 3 ch 7 input
ch 4 input 4 ch 8 input
ground 5
+15 V 6 +15 V output
output
not 7
connected connected
not 8
connected connected
Signal
ground
not
not