Roland GKP-4 - Manual (Page 7)

7
Connecting Devices
* Connect only with the GK cable included with this product, or using other GK cables (GKC-3, GKC-5).
Use of other cables can cause malfunction.
* Do not allow the total length of cable used to connect together the GK-2A, the GKP-4, and connected
GK-compatible devices to exceed ten meters.
Connecting with the GKC-10 (ten meters) or C-13B (ten meters), or using all the GKC-5 (five meters)
to connect all the GK devices results in excessive cable length, which may hinder normal operation.
* Allowing a GK device to remain connected to the GKP-4 even though it is not being used can cause
your GK devices to malfunction, and can also be a source of noise. Disconnect any GK device that is
not being used.
* Whether it’s because you've used unnecessarily long cables, or because you have only one end of a
cable connected while the other end remains free—improper connections can cause your GK devices to
malfunction, and can also be a source of noise. Use the shortest cable length possible, and pull out any
cables that you don't need, since they're only connected at one end anyway.
* Power for the GKP-4 and GK-2A is supplied through the GK cable from the GK device connected to
the GK OUT A connector. Thus, the GKP-4 and GK-2A will not operate with the GK device (or
devices) connected only to the GK OUT B (and/or C and D) connector. When using only one GK
device, connect it to GK OUT A (POWER SUPPLIER).
* Allow the power provided by the GK-compatible device to supply only one other piece of equipment
besides the GK-2A. Connecting more than one GKP-4 or US-20 may cause the maximum current of
the GK-compatible device to be exceeded.
* The GK-compatible device supplying the power should be an AC-powered device, not a battery-
powered one.