EA Incremental Encoder Adapter

EA Features

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

See more info below

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EA 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 (up 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 latching connector (FH10). The differential signal from the EA-D-L-10- can be connected directly to USD's QSB-D and USB4-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 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 7.5 to 30VDC 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 5-pin male 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 7.5 to 30VDC 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.


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

Product Specifications

View here or download the specifications

Environmental

ParameterMin.Max.Units
Operating Temperature -40 85 C
Electrostatic Discharge, Human Body Model
EA-D
EA-D10-HV
EA-R

-3
-1
-3

3
1
3

kV

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

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

ParameterMin.Typ.Max.UnitsNotes
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

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

ParameterMin.Typ.Max.UnitsNotes
Supply Voltage (Vs) 7.5 - 30 Volts
Encoder Supply Current - - 200 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  

EA-R-L-10- Receiver Electrical Characteristics

EA-R-L-10- Receiver Electrical Characteristics

ParameterMin.Typ.Max.UnitsNotes
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 -

Driver (EA-D-) Pinout

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 latching connector (FH5) or a 10-pin latching connector (FH10).

FH5 Output Connector:

5-pinB_3.gif

FH10 Output Connector:

Enc10-pinB_3.gif

PinInput 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.

Receiver (EA-R-) Pinout

For a Receiver, the input connector is always a 10-pin 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

Enc10-pinB_3.gif

PinInput 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.

4-pin, 5-pin Connector Options

ConnectorDescription
H5 5-pin right-angle male header soldered in place.
FH5 5-pin 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 latching mating connector.
MIC4 Four 6" discrete wires with a micro mating connector.
W5*H5FH5C5
w51.gif h5.gif fh5.gif c5.gif
LC5FC5MIC4
lc5.gif fc5.gif mic4.gif

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

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

Additional Information

Product Notes

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

Downloads Available

DATASHEETS

3D Model Downloads

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    Related Products & Accessories

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    EA Pricing

    Quantity Unit Price
    1 $33.00
    5 $30.00
    10 $29.70
    50 $29.10
    100 $28.50
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    Quantity Unit Price Subtotal
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