CMU-212 Cabinet Monitor Unit
Operations Manual
Eberle Design Inc.
Page 17
ADDRESS 1 ADDRESS 0 SB #1 ADDRESS
False
False
0x0F
False
True
0x10
True
False
0x11
True
True
0x12
The default address for the CMU is 0x0F. If multiple CMU units are not installed on Serial
Bus #1 these inputs should be left in the False (open) state.
3.7 SERIAL BUS #1 DISABLE INPUT
The SERIAL BUS #1 DISABLE input is used to prevent a Serial Bus #1 Error when
communications from the ATC is not active. When the SERIAL BUS #1 DISABLE input is
connected to VDC GROUND (True) The CMU-212 will not communicate on Serial Bus #1
or set a FSA condition if communications from the ATC is not present. See section 2.3.1.
The SERIAL BUS #1 DISABLE input is intended for use in testing the CMU-212 and should
not be connected in the cabinet.
3.8 PDA TEMPERATURE
The CMU-212 will measure the ambient temperature in the PDA and report this value in the
Type 182 frame. This temperature indication may be used to analyze malfunctions that
could be related to over heating or cold conditions.
