Table
Of
Contents
Chapter 1 - Connections And Operation
Connections .................................................................................................................................................1
Headset ........................................................................................................................................................1
Intercom Channels ......................................................................................................................................1
Operation ....................................................................................................................................................2
Programmable Options ...............................................................................................................................3
Factory Settings ..........................................................................................................................................3
Jumpers (W1-w7) ........................................................................................................................................4
Sidetone Adjustment ....................................................................................................................................5
Alternate Powering Methods ......................................................................................................................5
General ........................................................................................................................................................5
Method One: One Channel Operation With A Non-rts Power Supply .......................................................5
Line Input Connector Wiring For 1-channel Operation With Non-rts Power Supply ................................6
Bottom View Of The Main Circuit Board ...................................................................................................6
Line Loop Connector Wiring For 2-channel Operation With Non-rts Power Supply. ...............................6
Line Input Connector Wiring For 2-channel Operation With Non-rts Power Supply ................................6
Method Two: Two Channel Operation With A Non-rts Power Supply .......................................................7
Chapter 2 - Replacement Parts
Where To Obtain Parts ...............................................................................................................................9
Electrical Parts .........................................................................................................................................10
Chapter 3 - Specifications And Drawings
Specifications ............................................................................................................................................15
Drawings ...................................................................................................................................................16
Front Panel Board Assembly, Bp325 ........................................................................................................17
Main Board, Bp325 ...................................................................................................................................18
Rear Panel Assembly, Bp325 ....................................................................................................................19
Rear Panel Assembly, Bp325 ....................................................................................................................20
Final Assembly, Bp325 .............................................................................................................................21
Schematic Diagram, Front Panelcircuit Board ........................................................................................22
Schematic, Main Board Page 1 .................................................................................................................23
Schematic, Main Circuit Board Page 2 ....................................................................................................24
Bp-325 Cable Assemblies ..........................................................................................................................25
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