Printed in U.S.A. Copyright © 2001, Jensen Transformers, Inc.
4
Figure 2.1 - Schematic Diagram
(Typ of 8)
Section 2 - Installation
2.1 Circuit Description and Jumper Settings
2.1.1 Reference Designators
The schematic diagram shown in Figure 1 is representative of each of the eight channels of
the JT-MS-8N2 Microphone Splitter. Reference designators for the other seven channels are
determined as follows: Switch, transformer and plug reference designators correspond to the
channel number, while resistor, capacitor and jack reference designators are formed by adding a
digit representing the channel number ahead of the nominal part reference number. For example,
channel 1 resistors are numbered R11, R12 ... R17 and channel 3 capacitors are numbered C31,
C32, and C33.
2.1.2 Input / Output Connections
The JT-MS-8N2 is based upon the Jensen JT-MB-CPC microphone splitter transformer,
which has a Faraday shielded input winding and one Faraday shielded output winding.
Connections for the input winding and a parallel through connection are provided on connector
J11.
Connections for the isolated output winding are provided on
J12
.
A three pin removable
plug for each input and output is provided with the JT-MS-8N2 unit.
2.1.3 Phantom Power Circuitry and Switches
Each of the eight channels are provided with the circuitry and switching necessary to provide
standard 48 Volt phantom power to the microphone input. All eight channels share a common
phantom power supply. A 3 pin header,
P1
, is provided on each channel for attachment of an
