1 Electrical Characteristics
- 1.1 Digital I/Os and Analog Inputs Electrical Equivalent Circuits
2 Communications Characteristics
3 General Specifications
4 Dimensions
- 4.1 Dimension details
- 4.2 Rack Mount Accessories

Electrical Characteristics

All ratings are given at 15 V power supply and 25°C ambient temperature unless otherwise specified.

Parameter	Test Conditions/Notes	Minimum	Typical	Maximum	Unit
Power Supply Voltage		14.5	15	17	V
Power Supply Current		-	-	2	A
Logic Input Voltage		0	-	5.5	V
Logic High Input Threshold		2.0	-	-	V
Logic Low Input Threshold		-	-	0.8	V
Logic High Output		4.5	5	5.5	V
Logic Low Output		0	-	0.55	V
Output Current		-20	-	20	mA
Analog Input Voltage		-10	-	10	V

*Note: Both DB37 and DB50 have the same connections. Multiple connector options are added to facilitate a direct interface with both devices. However, only one should be connected at a time.

Digital I/Os and Analog Inputs Electrical Equivalent Circuits

Communications Characteristics

Protocol	Version/Speed
CAN	Up to 1 Mbps
Sync	UART Mode: 6.25 Mbps
Fiber Optics	UART Mode: 6.25 Mbps
OTG USB	2.0 Full Speed, 12 Mbps

Note

CAN & Sync speed can differ due to chip shortage, lower speed models may be used if originally intended chips are not available.

General Specifications

Parameter	Test Conditions/Notes	Minimum	Typical	Maximum	Unit
Operating Temperature		-20	-	50	°C
Storage Temperature		-40	-	70	°C
Sync & CAN Isolation	AC Voltage, 1 Minute	-	-	1500	V

Dimensions

Width: 31.6 cm (12.4”)
Depth: 20.7 cm (8.2”)
Height:
- With rubber feet: 5.25 cm (2.1”)
- Without rubber feet: 4.3 cm (1.7’’)

Dimension details

Click image to enlarge.
All dimensions are in mm.

Rack Mount Accessories

The OP8666 can be fitted on a 19” standard rack cabinet using the supplied accessories. The OP8666 is 1 Rack Unit (1U).
Note that the module is shifted from the middle of the rack in order to align the DB50 connectors between the OP8666 and the PELab in a combined solution.