User manual RANE FPM 44

[. . . ] The MASTER A/B output level controls affect only the signal level at the direct outputs of the unit. NEVER CONNECT ANYTHING EXCEPT AN APPROVED RANE POWER SUPPLY TO THE RED THING THAT LOOKS LIKE A TELEPHONE JACK ON THE REAR OF THE UNIT. This is an AC input and requires special attention if you do not have an operational power supply exactly like the one that was originally packed with your unit. See the full explanation of the power supply requirements elsewhere in this manual. FPM 44 PROGRAM MIXER SYSTEM CONNECTION When connecting the FPM 44 to other components in your system for the first time, leave the power supply for last. [. . . ] The Aux source is selected from either pre- or post fade via internally located switches. See "4-In 4-Out Modification" to dedicate any input to only one Aux Output. This red LED comes on anytime the input amplifier exceeds a level of 4dB below clipping. These concentric knobs set the signal output level of the MASTER A output (inner knob) and the MASTER B output (outer knob). These terminal strip points are used for either microphone or line level inputs. Connect balanced sources to "+", "­" and GND terminals. When an unbalanced input is used, the "­" may be left open or shorted to GND. These are unbalanced terminals and noninverting with respect to the inputs. Ground return is picked up from the GND connector located between the output terminals. These "+" and "­" terminals supply a balanced direct output of Master A/B. If an unbalanced line is required, use "+" and one of the GNDs located nearby. Used to select Aux source to be Pre- or Post- input LEVEL A/B controls. This input accepts bus information from other FLEX mixer modules, such as an FMI 14, FLM 82 or another FPM 44. The combined results appear at the FLEX BUS OUT jack, as well as the terminal strip outputs. This seven-pin DIN connector provides output to other mixer modules, such as another FPM 44, an FMI 14 or an FMM 42. Signals present here include the AUX of both this FPM 44 as well as any AUX sends generated by other FLEX mixer modules connected to the FLEX BUS IN above. The Master A and B signals are also available, which are the sum of this module and any other modules connected to the BUS IN. Use only a model RS 1, FRS 8, RAP 10, VC 18 or other remote AC power supply approved by Rane. The FPM 44 is supplied with a remote power supply suitable for connection to this input jack. On this unit, the GROUND LIFT switch is located along the bottom edge (vertical mounting), or along the right-hand side (horizontal mounting). Since the switch's location prevents easy use once installed, it is suggested you decide which position is required, and set it before installation. The LIFT position is when the switch is slid toward the rear of the unit. This switch provides the ability to separate chassis ground and signal ground. [. . . ] Normally this line would be very sensitive to noise and would be impossible to bring out of the mixer, even in a well shielded cable. This is not a problem with the Flex Bus System and thus allows as many modules to be combined on one bus as could ever be necessary. For further system connection possibilities, please refer to the Flex Users Guide. Because of space limitations, dual concentric AUX SEND pots are not possible. [. . . ]