Differences Between HD20 and DGS20
	HD20 (datasheet) Previous Model (No longer available)	DGS20 (datasheet) (New Model)
Dimensions
Square Flange	.250" Thick	.300" Thick
Mounting	2.0" Square 4 x .156" Diameter 2.5" Servo 2.5" Square 4 x .20" Diameter 2.0" Servo 2.0" Face with Pilot #6-32 on CL	2.06" Square 4 x .156" Diameter Not Available Not Available 2.0" Servo w/Face Holes #4-40, # M4 x 5mm, #10-32 Straddle CL Not Available
Shaft Options	Extended .375" (3/8) Diameter with Flat	Not Available
Number of Lines	Dropped	Added
	30, 240, 336, 960, 1140, 1152, 1230, 1270, 1386, 1512, 1888	1, 5, 64, 80, 120, 254, 1280, 1472, 1600, 2540, 2750, 3000
Electrical Interfaces	RS-422 (3487 Line Driver) Open Collector (7406) 8-24V Line Driver (7272)	+5V or +8-24V in/+5V Diff. Line Driver (3487) +8-24V in/Open Collector (7406) +8-24V in/8-24V Diff. Line Driver (7272)
Maximum Output
Frequency	100 kHz	200 kHz
Permissible
Relative Humidity	95%	90%
Protection Class	IP65	IP66
Pin Allocation	6-Pin: Case Ground is on Pin F	6-Pin: Case Ground is Not Connected
Wire Allocation	8-Core Wiring	11-Core Wiring
Connection Types	6-Pin and 10-Pin Axial or Radial	6-Pin, 7-Pin, 10-Pin Radial Only