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...
EA Incremental Encoder Adapter
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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
Product Specifications
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.
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.
Related
Product Notes
- US Digital warrants its products against defects in materials and workmanship for two years. See complete warranty for details.
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