Here are some questions we are frequently asked
about for iPad charging and syncing
applications. Call us if you have other
questions that we haven't addressed below.
- What types of cables work with the
The DS-IP-SYNCCHARGE is provided with a power cable that plugs into the
wall and a certified USB cable that goes from the DS-IP-SYNCCHARGE to your
computer’s USB 2.0 port. We recommend that you use the cables provided
by Apple with each iPad to connect each iPad to the DS-IP-SYNCCHARGE, you use the cables provided by Apple with each iPad. If those are not available, be sure to use either an Apple-provided cable (USB-to-30-pin connector) or a cable that is not only USB 2.0 certified but meets Apple’s specifications. Many inexpensive third party cables are either not durable enough for frequent charge and sync use or are not properly shielded or configured, which could effect the charge and sync function. Datamation Systems offers a bundle of certified USB cables of a type we have had tested to assure their compliance with these standards. We encourage you to purchase Apple-provided cables or contact us for more information.
- How long does it take to charge 16 iPads using the DS-IP-SYNCCHARGE devices?
Charging speeds for iPads: We ran some tests, charging iPads that had been completely depleted, to see how long various methods took to re-charge them from 100% empty to 100% full.
We found the following:
USB port 2.0: On a desktop PC, it took 13 hours 30 minutes to charge a single iPad through the trickle charge on the USB port. The iPad does not display that the unit is charging. We have heard that this can take longer if it is done on a computer or notebook that goes into sleep mode.
On some multi-USB hubs (even powered hubs), the USB charge shares the available power supply and would take even longer. On one 24-port hub we reviewed, the unit had a 22.5W power supply which gives less than 200mA per port so trickle charging would take more than twice as long as even the worst PC port. If the iPad is used daily for a few hours, the net charge in the iPad (if charged on this hub each evening) would go down.
Plugged into the Cambrionix C3 USB board used in the DS-IP-SYNCCHARGE: A complete empty-to-charged cycle took 4 hours, 35 minutes. According to Cambrionix, this charging time is the same as would be using the charging block supplied with the iPad itself. This would be the time required whether you are re-charging one or 16 iPads, as each port is provided with the full power required.
If the charge status of the iPads is not 100% empty, the time would be less.
How long does it take to sync 16 iPads to iTunes using the DS-IP-SYNCCHARGE devices?
Based on tests conducted by Cambrionix, using a current MacBook and a current version of iTunes, testing iPad and iPod devices with Apple-supplied USB-30 cables, it took 70 seconds to sync a 1000MB file to three devices. Based on their calculation of the maximum capacity of the USB 2.0 port and the number of ports, they estimate that it would take 5.3 minutes to sync simultaneously the same 1 Gig file to 16 devices. Other factor as may have an impact on snyc speed (such as the host system, the type of file, number of files, etc.), but this is the best estimate based on the tests.
Can we use a Mac mini or G5 tower pc to sync to 16 iPads?
If the mini or G5 has a USB 2.0 port and runs a current version of iTunes, they will be able to communicate with the DS-IP-SyncCharge.
A MacBook has multiple USB ports. Can you plug in two DS-IP-SYNCCHARGE devices into each port and sync 32 iPads at one time?
Yes. The DS-IP-SyncCharge is addressed as a USB device by each port the same way iTunes would address a single iPad or iPod plugged into a USB port. But, in the case of the DS-IP-SyncCharge, it will recognize all the devices plugged into the 16 ports of each device.
What are the minimum requirements of the Apple computer to be able to sync
The Apple computer must have a USB 2.0 port and be running the current version of iTunes. If you have specific questions about your Apple equipment, you should contact your Apple representative.