| 
   
    | PD 990 4-WIRE P-NET Conditioner  The PD
    990 4-WIRE P-NET Conditioner unit is a multipurpose device that is used
    for:   
     Termination of a 4-WIRE
         P-NET bus.
 
Connection of a traditional
         P-NET module to a 4-WIRE P-NET bus.
 
 
Connection and termination
         of a traditional P-NET module to a 4-WIRE P-NET bus.   The PD
    990 4-WIRE P-NET Conditioner is delivered as a moulded unit with 5 wires of 200 mm
    length.    |   |  
    | 
 |   PD 990 4-WIRE P-NET Conditioner Block Schematic         
   
    | Power
    supply |  
    | Power
    supply DC: | Nom | 24.0 V |  
    | min. | 18.0 V |  
    | max. | 32.0 V |  
    | Ripple
    voltage: | max. | 5 % |  
    |   |   |   |  
    | Power consumption @ 24V DC |   |   |  
    | Operation: | max. | 20 mA |  
    | Current at power up: | max. | 25mA |  
    |   |  
    |   |  
    | Ambient
    temperature range |  
    | Operating
    temperature: | -25 °C
    – 70 °C |   |  
    | Storage
    temperature: | -40 °C
    – 85 °C |   |  
    |   |  
    | Humidity |  
    | Relative
    humidity: | max. | 95 % |  
    |   |  
    | EMC |  
    | Immunity: | EN 61000-6-2 |  
    | Emission: | EN 50082-1 |  
    |   |  
    | Vibration |  
    | Test
    method: | IEC
    60068-2-6 |  
    | Frequency
    / amplitude:   | 2-10
    Hz: +/- 5.0 mm |  
    | 10-100
    Hz: +/- 2g |  
    | Sweep
    rate: | max. 1
    octave/min |  
    | Number
    of axes: | 3 mutually
    perpendicular |  
    |   |   |  
    |   |   |  
   Mechanical details:                 Related topicsInstallation guide PD 990 4-WIRE P-NET
  Conditioner Installation guide 4-WIRE P-NET topology Overview PD 66x communication devices   |