Rane ME15S Operation Manual - Page 6

Rear Panel Description 100-240 V 50/60 Hz 7 WATTS 5 COMMERCIAL AUDIO EQUIPMENT 24TJ R ME15S MADE IN U.S.A. RANE CORP. ACN 001 345 482 CHANNEL 2 OUTPUT INPUT WIRING TIP / PIN 2 = POSITIVE RING / PIN 3 = NEGATIVE SLEEVE = SIGNAL GROUND PIN 1 = CHASSIS GROUND ALL AUDIO IS CLASS 2 WIRING This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 43 21 CHANNEL 1 OUTPUT INPUT 43 21 1 XLR INPUT jacks: These accommodates balanced signals. Rane adheres to the international and U.S. standard for balanced pin configurations: Pin 1 is chassis ground (neutral), pin 2 is hot (positive), and pin 3 is signal return (negative). Choose between this and the ¼" TRS Input jack-use only one-they do not sum. 2 ¼" TRS INPUT jacks: These TRS (tip-ring-sleeve) ¼" jacks accommodate either balanced or unbalanced signals. Balanced signals use microphone cable (two conductor with shield) with TRS ¼" plugs. Unbalanced signals use a mono ¼" TS plug (single conductor with shield), with its length kept under 10 feet (3 meters) to avoid hum and noise. Choose between this and the XLR Input jack-use only one-they do not sum. Refer to the included RaneNote, "Sound System Interconnection" for unbalanced wiring. 3 ¼" TRS OUTPUT jacks: These are TRS (tip-ring-sleeve) ¼" balanced jacks compatible with either balanced or unbalanced systems. For balanced systems, use a microphone cable wired with pin 1 is chassis ground (neutral), pin 2 is hot (positive), and pin 3 is signal return (negative). Refer to the RaneNote, "Sound System Interconnection" for unbalanced wiring. 4 XLR OUTPUT jacks: These balanced outputs are wired per AES standards of pin 2 "hot", as described above in 1. 5 Universal Voltage Input: via a miniature IEC 60320 C6 appliance inlet. This mates with an IEC 60320 C5 line cord (USA domestic). Do not lift the ground connection! ME15S Connection INPUTS Both XLR and ¼" TRS Inputs are wired in parallel and are actively balanced. Each works equally well. Choose strictly from a required hardware point-of-view, there will be no performance trade-offs. The wiring convention adheres to American, British and International standards of pin 2 or tip being hot, pin 3 or ring being return, and pin 1 or sleeve being shield. Unbalanced operation involves using only pin 2 or tip as signal, and pin 1 or sleeve as shield or ground. It is not necessary to short any inputs to ground-it doesn't hurt, it's just not necessary. Use pin 1, or the shell, for shield ground. OUTPUTS The Outputs mimic the Inputs. Balanced output requires using pin 2 or tip, and pin 3 or ring for the signal. It does not require pin 1 or shield. The signal exists differentially between the two balanced leads; ground is not involved. For hum-free systems ground is used only for shielding. EXPANDING Expanding and/or daisychaining the Inputs and Outputs normally uses the ¼" jacks. Three parallel Input connectors allows driving a second signal processor or amplifier without special cabling. SIGNAL LEVELS Signal levels from -10 dBV to +4 dBu are considered normal and within range (at least 20 dB of headroom exists above these levels). Do not directly connect microphones into the ME15S. These require a mic preamp. Manual-3