Rane GE 130 - Manual (Page 3)

Manual-3
REAR PANEL DESCRIPTION
ቢ XLR INPUT connector accommodates a balanced INPUT signal. Rane adheres to the international and US standard for
balanced pin configuration: pin 1 is chassis ground (neutral), pin 2 is hot (positive), and pin 3 is signal return (negative).
Choose either this XLR jack or the Euroblock—don't use both—they do not sum.
ባ Euroblock INPUT and OUTPUT connector supplies an alternate method of getting a signal in and out of the GE 130. The
female portion of this connector may be removed so it is easier to connect the input/output wires. Use only one input
connector, the XLR or the Euroblock.
ቤ XLR OUTPUT connector supplies a balanced OUTPUT signal. Rane adheres to the international and US standard for
balanced pin configuration: pin 1 is chassis ground (neutral), pin 2 is hot (positive), and pin 3 is signal return (negative). It
is permissible for both Euroblock and XLR OUTPUTS to connect to different devices simultaneously.
ብ Remote power supply input: Use only an RS 1 or other remote AC power supply approved by Rane. The GE 130 is sup-
plied from the factory with a remote power supply suitable for connection to this input jack. It is not a telephone jack. The
power requirements of the GE 130 call for an 18-24 volt AC center-tapped transformer only.
ቦ Chassis Ground Point: A #6-32 screw and toothed washer is provided for chassis ground. Since the GE 130 does not get
chassis ground through the AC cord, this point is provided in case your system does not have another earth ground such as
the rack rails. See the Chassis Grounding note below for details.
ቧ Optional power supply mounting location: These screws can be used to mount the remote supply that came with the GE
130. Noise performance is only slightly degraded when the power supply is attached. The application will determine
whether this option is of benefit. Noise performance will still meet those in published specifications if this option is used.
CHASSIS GROUNDING
If after hooking up your system it exhibits excessive hum or buzzing, there is an incompatibility in the grounding
configuration between units somewhere. Your mission, should you accept it, is to discover how your particular system
wants to be grounded. Here are some things to try:
1. Try combinations of lifting grounds on units that are supplied with ground lift switches or links.
2. If your equipment is in a rack, verify that all chassis are tied to a good earth ground, either through the line cord
grounding pin or the rack screws to another grounded chassis.
3. Units with outboard power supplies do not ground the chassis through the line cord. Make sure that these units are
grounded either to another chassis which is earth grounded, or directly to the grounding screw on an AC outlet cover by
means of a wire connected to a screw on the chassis with a star washer to guarantee proper contact.
Please refer to Rane Note 110 “Sound System Interconnection” (supplied with this manual and available on request at
no charge) for further information on system grounding.