LS7708 with IBM Surepos

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S Sean Wheatley 3 years 6 months ago
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Hi, I am debating whether it is necessary to have an external power supply with the LS7708 when connected to the IBM Surerpos 300. It has 5 volt USB ports but not sure it can supply adequate current. Also it has 12volt "power plus" usb ports but I guess are not suitable at all. If the the 5volt port is rated at say 500mA , would that be too marginal if the spec for the scanner is 450mA nominal ? What is the minimum required current rating on the port that the 7708 needs? I want to avoid using external power at all cost due to the reluctance on the customer side and potential competitive disadvantage it has. Any advice welcome. Thanks.

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B Benny Karlsson

Sean

You will not need external power if:

- the cable used is less then 8.5´

- no additional scanner (or others) are connected to the LS7708

Power requirements to the LS7708 are designed to run on a “standard USB port”, a feature that makes us unique.

The Power Plus does not bring any benefit to us, in terms of power. We use only the 5V portion of that anyhow; the “high power” portion is not connected in the cable. It’s only a matter of having that connector on our cable.

Best of luck!

Best Regards

Benny Karlsson

Technical Architect

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