EA Incremental Encoder Adapter

Overview

Single-ended driver or differential driver/receiver available
Three digital channels (A/B/I encoder signals) per adapter
Variety of connector options
Low cost

Differential Cable Driver/Receiver: The EA-D-L-10- is a differential RS-422 cable driver which converts the single-ended A/B/I output from USD's single-ended incremental encoders (or any three...

Product Specifications

Parameter	Min.	Max.	Units
Storage Temperature	-40	100	C
Operating Temperature	-40	100	C

EA-D-L-5-, EA-D-L-10- Driver Electrical Characteristics

Parameter	Min.	Typ.	Max.	Units	Notes
Supply Voltage	4.5	-	5.5	Volts	-
Supply Current	-	4.5	9.0	mA	-
Output High Voltage	2.5	-	-	Volts	I(OH) = 20 mA
Output Low Voltage	-	-	0.8	Volts	I(OL) = 20 mA
Propagation Time	-	-	15	ns	-

EA-D-H-5-, EA-D-H-10- Driver Electrical Characteristics

Parameter	Min.	Typ.	Max.	Units	Notes
Supply Voltage (Vs)	7.5	-	30	Volts	-
Supply Current	-	-	10	mA	-
Propagation Time	-	236	330	ns	-
Output Low Voltage			0.5	Volts
Output High Voltage		Vs - 2.0		Volts
Output Current Source/Sink		20		mA
Output IC	-	-	-	-	ET7272

EA-R-L-10- Receiver Electrical Characteristics

Parameter	Min.	Typ.	Max.	Units	Notes
Supply Voltage	4.5	-	5.5	Volts	-
Supply Current	-	16	25	mA	-
Input High Voltage	2.0	-	-	Volts	I(OH) = 20 mA
Input Low Voltage	-	-	0.8	Volts	I(OL) = 20 mA
Propagation Time	-	-	35	ns	-

For a Driver, the input connector is a 4-pin or 5-pin connector chosen from: H5, FH5, C5, FC5, LC5, MIC4, W5. See "4-pin, 5-pin Connector Options" for pictures of the available connectors.
The output connector is either a 5-pin finger latching connector (FH5) or a 10-pin finger latching connector (FH10).

FH5 Output Connector:

FH10 Output Connector:

Pin	Input 4-pin Connector (MIC4)	Input 5-pin Connector (H5, FH5, C5, FC5, LC5, W5)	EA-D-L-5-/EA-D-H-5- Output 5-pin Connector (FH5)	EA-D-L-10-/EA-D-H-10- Output 10-pin Connector (FH10)
1	+5VDC power	Ground	Ground	Ground
2	A channel (in)	Index (in)	Index (out)	Ground
3	Ground	A channel (in)	A channel (out)	Index- (out)
4	B channel (in)	+5VDC power	+5VDC power +7.5 to +30VDC power in (EA-D-H-5- only)	Index+ (out)
5		B channel (in)	B channel (out)	A- channel (out)
6				A+ channel (out)
7				+5VDC power +7.5 to +30VDC power in (EA-D-H-10- only)
8				+5VDC power +7.5 to +30VDC power in (EA-D-H-10- only)
9				B- channel (out)
10				B+ channel (out)

Notes:

(1) For the Low voltage (EA-D-L-) versions, the +5VDC pins on the input and output connectors are electrically connected together, so power can be applied on either the input or output connector. For the High voltage (EA-D-H-) versions, the 7.5 to 30VDC power is applied at the OUTPUT connector. +5V out is generated at the INPUT connector.

For a Receiver, the input connector is always a 10-pin finger latching connector (FH10). The output connector is a
5-pin connector chosen from: H5, FH5, C5, FC5, LC5, W5. See
"4-pin, 5-pin Connector Options" for pictures of the available connectors.

FH10 Input Connector

Pin	Input 10-pin Connector (FH10)	Output 5-pin Connector (H5, FH5, C5, FC5, LC5, W5)
1	Ground	Ground
2	Ground	Index (out)
3	Index- (in)	A channel (out)
4	Index+ (in)	+5VDC power
5	A- channel (in)	B channel (out)
6	A+ channel (in)
7	+5VDC power
8	+5VDC power
9	B- channel (in)
10	B+ channel (in)

Notes:

(1) The +5VDC pins on the input and output connectors are electrically connected together, so power can be applied on either the input or output connector.

Connector	Description
H5	5-pin right-angle male header soldered in place.
FH5	5-pin finger-latching header soldered in place.
W5*	Five 12" discrete wires, no connector on the end.
C5	Five 6" discrete wires with a standard mating connector on the end.
LC5	Five 6" discrete wires with a locking mating connector on the end.
FC5	Five 6" discrete wires with a finger-latching mating connector.
MIC4	Four 6" discrete wires with a micro mating connector.

W5*	H5	FH5	C5

LC5	FC5	MIC4

*Note: The W5 pin-outs are as follows:

Pin	Description	Color
1	Ground	Brown
2	Index	Violet or NC
3	A channel	Blue
4	+5VDC power	Orange
5	B channel	Yellow

Product Description

Differential Cable Driver/Receiver:

The EA-D-L-10- is a differential RS-422 cable driver which converts the single-ended A/B/I output from USD's single-ended incremental encoders (or any three TTL level digital signals) to 3 pairs of differential signals. This allows the encoder to drive long cables (6 to 1000 ft.) and reduces false switching in noisy environments. Various connector options are available on the 5-pin input side of this adapter. The output differential signals are available on a male 10-pin finger-latching connector (FH10). The differential signal from the EA-D-L-10- can be connected directly to USD's PCI-3E-D, PCI-4E-D, USB4-D and AD4B-D interface products.

The corresponding receiver, EA-R-L-10- converts the received differential signals back to 3 single-ended TTL level digital signals. The differential input side of the receiver is a 10 pin male finger latching connector (FH10). Various connector options are available on the single ended 5-pin output side.

The EA-D-H-10- is the same as the EA-D-L-10-, but offers a wide operating voltage range of 9.5 to 32VDC and a large output voltage swing proportional to the power supply voltage. This adapter allows 5V encoders to be used in high voltage applications.

Single-ended Cable Driver:

The EA-D-L-5- driver converts 3 single-ended, low drive digital signals to 3 single-ended, high current drive digital signals. This variant is useful since the TTL outputs of some incremental encoders can sink (pull down) just under 4mA and source (pull up) only about 200 uA. The output side of the driver is a 5pin male finger latching connector (FH5). Various connector options are available on the single ended 5-pin input side.

The EA-D-H-5- is the same as the EA-D-L-5-, but offers a wide operating voltage range of 9.5 to 32VDC and a large output voltage swing proportional to the power supply voltage. The EA-D-H-5- allows 5V encoders to be used in high voltage applications.

The EA-D-L-10- and EA-D-L-5- cable drivers use an industry standard 26C31 driver chip. The EA-D-H-10- and EA-D-H-5- use the ET7272 driver chip. An on-board 0.1 microfarad bypass capacitor across the power pins on each of these adapters compensates for inductance and noise, which can be expected at the end of a long cable. The cable receivers use an industry standard 26C32 receiver chip.

US Digital can supply nearly any cable to your specifications. See the Cables & Connectors page for more information.

Product Notes

US Digital warrants its products against defects in materials and workmanship for two years. See complete warranty for details.

Purchasing

Configure and Purchase

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1. Type

Driver
Conn. A: Output
Conn. B: Input
(D)
Receiver
Conn. A: Input
Conn. B: Output
(R)

2. Voltage

Low (L)
High (H)

3. Connector A

FH5 (5-Pin)
(5)
FH10 (10-Pin)
(10)

4. Connector B

Product Part Number

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Quantity	Base Price
1	$11.55
10	$11.20
50	$10.80
Over 50	Call for Quote

Quantity

Unit Price

$11.55

Subtotal

$11.55

For volume discounts, please use the above part number and contact us at sales@usdigital.com or 800.736.0194.

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1400 NE 136th Ave
Vancouver, WA 98684 USA

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Local: 360.260.2468
Toll Free: 800.736.0194
Support: 360.397.9999
Fax: 360.260.2469

US Digital designs and manufactures incremental and absolute optical encoders, inclinometers and other precision motion control components used in a variety of applications including solar thermal, industrial automation, medical, robotics and more.