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P-series & H-series backs shooting to portable computers or iMac’s

Knowledgebase article 

Article ID 1858
Summary P-series & H-series backs shooting to portable computers.
Problem What is the recommended configuration when shooting tethered to a laptop computer.
Force Battery Mode.


Solution * Portable and iMac computers from Apple do not provide sufficient power to Phase One Digital Backs from the FW bus *
* Most portable computers that run Windows do not provide any power from the FW bus*


Suggested Configurations when shooting to a portable computer such as a PC or Apple notebook (such as Macbook Pro, Powerbook, iBook etc.) and iMac’s. This solution should be used for some specific desktop Apple computers such as iMac, eMac or Mac Mini. These computers do not provide enough power through their firewire ports to completely support the digital back in tethered mode.


H-series backs: The Phase One IEEE1394 Portable Solution/IEEE1394 Power Pack (Item No. 70606) solution is required.

P20, P25: The back is not able to use battery power when tethered to a computer unless you follow the instructions listed below. Connect either the “No Power Firewire Cable (Item No. 70508)” solution or theCapture Integration FireWire Port Isolator.
This forces the back to use battery power.

P45, P30, P21: Set the unit to “force battery mode”. This refers to a situation when the back will be forced to use battery as its primary source of power even though it is connected to a computer via firewire cable. To activate this mode, please access “Menu” on the digital back and select > “Configuration” > “Power Source” > “Battery” > Choose “Green Check”.

P20+/P21+/ P25+/P30+/ P40+/ P45+ /P65+: Do not requre the “No Power Firewire Cable” solution since “force battery power” is supported on all newer backs.

What is the IEEE1394 Repeater (Item No. 70610)?

A= Repeater
B= FireWire cable


What is the No Power Firewire Cable Solution for P-backs (Item No. 70508)?

  • 6 to 4 pin IEEE1394 adapter
  • 4 to 6 pin IEEE1394 cable
  • Read Product Information PDF on No Firewire Cable Solution for P-backs. Available from links section below.

    What is the Portable Solution/IEEE1394 Power Pack (Item No. 70606)?

  • Battery (The Powerkit for AC Operation (Item No. 70506) of Phase One one-shot backs can be used in place of the battery).
  • Repeater (Item No. 70610) S/N BO 00xxxx or Power Conditioner S/N BH 00xxxx
  • small charger cable
  • battery charger (This charger cannot be used as a substitute for the battery!!)


    What is the Power kit for PowerPhase FX (Item No. 70506)?

    Repeater & AC adapter. Can be used as a substitute for the battery in the portable solution.
    If you want to use the portable solution with an AC power supply please order the power kit.

    Please Contact your Phase One Dealer to order these components.

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