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 US Digital's QSB and USB4 interface products.

The corresponding receiver, EA-R-L-10-W5 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). The single-ended 5-pin output side has five wires.

Single-ended Cable Driver

The EA-D-H-5- driver converts the single-ended A/B/I output from USD’s incremental encoders (or any 3 TTL level signals) to 3 digital outputs with a large voltage swing proportional to the power supply voltage. The power supply voltage range is 7.5 to 30VDC.  The EA-D-H-5- allows 5V encoders to be used in high voltage applications. The output side of the driver is a 5-pin male latching connector (FH5). Various connector options are available on the 5-pin input side.

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

Product Specifications

ENVIRONMENTAL

PARAMETER VALUE UNITS
Operating Temperature -40 to 85  C
Electrostatic Discharge, Human Body Model ± 3 kV

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- DRIVER ELECTRICAL CHARACTERISTICS

PARAMETER MIN. TYP. MAX. UNITS NOTES
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-W5 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  

DRIVER (EA-D-) PINOUT

The driver input is a 4-pin or 5-pin connector. See "Connector B Options" for pictures of the available connectors.
The output connector is a 5-pin latching connector, FH5 (TE # 2-103634-7), or a 10-pin latching connector, FH10 (MOLEX# 74162-2010).

FH5 Output Connector:

FH10 Output Connector:

PIN INPUT 4-PIN CONNECTOR (MIC4) INPUT 5-PIN CONNECTOR (C5, FC5, FH5, LC5, W5) EA-D-H-5-
OUTPUT 5-PIN CONNECTOR
(FH5)		 EA-D-L-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 +7.5 to +30VDC power  Index+ (out)
5   B channel (in)  B channel (out)  A- channel (out)
6        A+ channel (out)
7        +5VDC power
8          +5VDC power
9        B- channel (out)
10        B+ channel (out)

Notes:

(1) For the EA-D-L-10, the +5VDC pins on the input and output connectors are electrically connected together, so power can be applied to either the input or output connector. For the EA-D-H-5, the 7.5 to 30VDC power is applied at the OUTPUT connector. +5V out is generated at the INPUT connector.

RECEIVER (EA-R-) PINOUT

The receiver input is a 10-pin latching connector, FH10 (MOLEX# 74162-2010). The output has five 12" discrete wires (W5).

FH10 Input Connector

PIN INPUT 10-PIN CONNECTOR (FH10) OUTPUT 5-PIN (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, so power can be applied to either the input or output.

CONNECTOR B OPTIONS

OPTION DESCRIPTION MANUFACTURER INFO
C5 Five 22 AWG 6" discrete wires with a standard connector TE# 3-640440-5
FC5 Five 22 AWG 6" discrete wires with a latching connector MOLEX# 14-56-7052
FH5 5-pin latching header TE# 2-103634-7
LC5 Five 22 AWG 6" discrete wires with a locking connector TE# 1-87175-2 (Housing)
TE# 87124-1 (Contacts)
MIC4 Four 26 AWG 6" discrete wires with a micro connector MOLEX# 51021-0400 (Housing)
MOLEX# 50079-8000 (Contacts)
W5* Five 22 AWG 12" discrete wires UL 1061-22/7-3
C5 FC5 FH5
LC5 MIC4 W5*

*Note: The W5 pin-out is 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

DRIVER VS. RECEIVER

Additional Information

Product Notes

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

Datasheets

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