PC5 HP Compatible Incremental Encoder Cable Driver

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  • PC5
  • PC5
  • PC5


  • Avago / HP HEDL compatible output

The TTL outputs of some incremental encoders can sink (pull down) less than 4mA and source (pull up) less than 200uA. The PC5 is a small, plug-in RS-422 cable driver board that drives long cables up to 1000...

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Product Specifications

The cable drivers shown below are compatible only with the E2, E3, H1, H3, S1 and S2.

PC5 Differential cable driver board. (shown mounted on an S1 encoder).







Parameter Min. Typ. Max. Units Notes
Supply Voltage 4.5 - 5.5 Volts -
Supply Current (26C31) - 1 2 mA -
Output High Voltage 2.5 - - Volts IOH = 20 mA
Output Low Voltage - - 0.8 Volts IOL = 20 mA
Propagation Time - - 15 ns -
Electrostatic Discharge -2 - 2 kV Human Body Model
Parameter Min. Max. Units
Storage Temperature -40 100 C
Operating Temperature -40 100 C
ProductDriver HeaderConnector Mates With
PC5-H10 AMP# 103309-1 CON-C10*

* US Digital part number. For more information see the Cables / Connectors page.

PC5-H10  Avago / Agilent / HP Compatible Output

1 No connection
2 +5VDC power
3 Ground
4 No connection
5 A- channel
6 A+ channel
7 B- channel
8 B+ channel
9 Index-
10 Index+

Note:For implementations with long cables the supply voltage at the host should be appropriately higher to compensate for voltage losses in the wires. Consider the power requirement of the encoder, the PC5 module and the optional termination resistors.

PC3-H5, PC4, PC5 and PC6 Laser Markings - PCN 6228 9/27/2017 This notification is to inform our customers of a product marking change for the PC3-H5, PC4, PC5, and PC6 products. The purpose for this change is to create a more robust solution by utilizing laser marking versus the current paper label solution. The products effected will now be laser marked. Download

Product Description

Restriction of Hazardous Substances

The TTL outputs of some incremental encoders can sink (pull down) less than 4mA and source (pull up) less than 200uA. The PC5 is a small, plug-in RS-422 cable driver board that drives long cables up to 1000 feet using differential signalling to provide improved noise immunity. The PC5 can be used with the E2, E3, H1, H3, S1 and S2 encoders. Each board has a 5-pin socket designed to plug into the 5 pins of the encoder. An on-board 0.1uF bypass capacitor across the power pins on each of these boards compensates for inductance and noise which can be expected at the end of a long cable.

The output side of the PC5 is a 10 pin latching connector with an Avago / Agilent / HP compatible pinout (HEDL series). An optional terminating resistor with a value as low as 270Ω may be placed across each pair on the receiver side of the cable to match the cable's characteristic impedance. When calculating the power requirements of the encoder side of the cable, include the current consumed by the module, the driver IC and any terminating resistors. Be sure to supply sufficient voltage to compensate for the voltage drop across the power and ground wires (round trip). The typical cable resistance for 28 AWG wire is 65 ohms per 1000 feet. If an RS-422 receiver chip, such as 26C32, is used on the receiver side of the cable, we recommend a 0.1uF ceramic monolithic bypass capacitor across +5V and ground located within 1 inch of the receiver chip.

Product Notes
  • Cables and connectors are not included and must be ordered separately.
  • US Digital® warrants its products against defects in materials and workmanship for two years. See complete warranty for details.

Cable/connector assembly not included and must be ordered separately.

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