page Contents – 1
AM-55 / Sep 2015
C O N T E N T S
AM‑55 Technical Manual
Chapter 1 ‑ General Information
Table of Contents
Introduction ....................................................................................1‑2
AM‑55 Feature Overview ...............................................................1‑3
Rack Mounting ...............................................................................1‑3
AM-55 Installation Tips ...............................................................................................1-4
Grounding ...............................................................................................................1-4
Surge Protection .....................................................................................................1-4
UPS/Power Conditioning ........................................................................................1-4
Analog Audio Input Connections ............................................................................1-4
Analog Audio Output Connections .........................................................................1-5
Digital Audio Connections ......................................................................................1-5
Where to Install the AM-55 .........................................................................................1-6
Ratings Encoders ...................................................................................................1-6
Insert Point (Future Feature) ..................................................................................1-6
AC Power Considerations ............................................................1‑6
Rear Panel Connections ...............................................................1‑7
Audio Inputs ................................................................................................................1-7
Analog In .................................................................................................................1-7
AES In .....................................................................................................................1-8
AM Audio Outputs ......................................................................................................1-8
TX Out .....................................................................................................................1-8
AES Out ...................................................................................................................1-8
Headphone Monitoring ...............................................................................................1-8
Network Connection ...................................................................................................1-8
Ethernet RJ-45 ........................................................................................................1-9
Typical Straight-Through Cable ...............................................................................1-9
Typical Crossover Cable .........................................................................................1-9
General Purpose Interface (GPIO) ............................................................................1-10
GPIO RJ-45 ............................................................................................................1-11
Processing Presets ....................................................................................................1-11
AM-55 Input/Output Connections Drawing ................................................................1-13
Meters .............................................................................................2‑2
Input Level Meters ......................................................................................................2-2
AGC Meters ................................................................................................................2-2
Limiter Meters .............................................................................................................2-3
Output Meters .............................................................................................................2-3
OLED Display .................................................................................2‑3
Headphone .................................................................................................................2-5
Source Selection .....................................................................................................2-5
Headphone Volume .................................................................................................2-5
Chapter 2 ‑ AM‑55 Front Panel
