BC 2000
DIGITAL
Audio Routing, Mixing and Processing System for Program Production Centers
HARDWARE MANUAL
13
3.3. BC2203MH. Analog MIC/LIN inputs and headphone outputs module.
General description.
The BC2203MH board is capable of managing four TDM IN bus time-slots to insert four analog
mono signals into the system with mic or line level, and can furnish 48 volts of PHANTOM
power to the microphones that require it. It also manages four TDM OUT bus time-slots to
extract two signals from the system for two stereo headphones.
This board is inserted into the rear part of the BC2000DF rack, where it occupies two slots.
Panel description.
'HW ERROR' red LED*: this LED will turn on when the
system starts and, depending on its status, it will
indicate during normal operation:
-
Configured and active board: fast blinking.
-
Not configured board: slow blinking.
-
Board start error: LED on and fixed.
-
Board configured in backup mode: LED off.
'1' RJ45 type connector: 4 analog monophonic
inputs with mic or line level, balanced by transformer.
'3' RJ45 type connector: 4 independent inputs
configurable as general purpose inputs (GPI).
'2' RJ45 type connector: 2 analog outputs for two
stereo headphones. These outputs can be configured
to accept low impedance (8-ohm) headphones.
'4' RJ45 type connector: 4 independent outputs
configurable as general purpose outputs (GPO).
*
This operation way of 'HW ERROR' LED is valid for 2.23
microcontroller module firmware version (and later versions).
