Arrakis Systems MARC-15 Manual download pdf (Page 54)

I N S TA L L A TI O N I N S T R U C TI O N S

4.26

Input board Jumper Setup

Mic Module (only)

Phantom Power

‘A’ input

‘B’ input

Mic & Line (only)

Muting

Control room

Studio

Mic & Line (only)

CR Mic assign

All modules

Timer Reset

Source Input modules have pin jumpers on the PC board

for rarely used module setup. The factory default is

correct 90% of the time. The factory will set these

jumpers to meet custom configurations if requested

when the order is placed.

a) Mic Module Phantom Power (Mic module only)

Add a jumper if the mic being used is a condenser mic

that requires 48VDC phantom power.

The factory default is for NO jumpers to be in place.

b) Muting Assignments (Mic & Line modules only)

If the module is a mic module or the module is a line

module being fed by a mic preamp, then a muting jump-

er must be placed on the module. This is to eliminate

feedback from the monitor speakers to the mic. If the

mic is in the control room with the console, then the

Control Room muting jumper must be in place. If the mic

is in the studio, then the Studio jumper must be in place.

A jumper should not be placed on both the Control Room

and Studio pins.

The factory default is for all mic modules to be shipped

with the Control room muting jumper in place.

c) Control Room Mic Assigment (Mic & Line only)

This jumper assigns the module as the control room mic

that will feed the phone talk and studio monitor talk sys-

tems. Only ONE module per mainframe should have this

jumper.

The factory default is for the first mic in the mainframe

to have this jumper in place.

d) Timer Reset Assignment (All input modules)

If the timer is in AUTO mode, his jumper causes the

timer to reset to zero when this module is turned on.

The factory default is for all non-mic channels to have

this jumper in place.

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Arrakis Systems MARC-15 Manual Page 54

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