Harris Corporation Constellation™
Shelf Configurations 1-15
INTRODUCTION
Figure 1-9: High capacity, 3xDS3/2xDS3 + 28 DS1 terminals
TRANSMITTER A1
RECEIVER A1
SERVICE CHANNEL*
SPU CONTROLLER
HLM
MODEM A1
ACU
FUSE PANEL
FAN ASSEMBLY
POWER SUPPLY A1
KEYPAD, HANDSET, AND
DS1 ACCESS
Splitter-Combiner
TRANSMITTER A1
RECEIVER A1
SERVICE CHANNEL*
SPU CONTROLLER
MODEM A1
ACU
FUSE PANEL
FAN ASSEMBLY
POWER SUPPLY A1
KEYPAD, HANDSET, AND
DS1 ACCESS
Splitter-Combiner
Nonprotected Terminal
MODEM A2
HLM
RECEIVER A2
POWER SUPPLY A2
Nonprotected Tx, SD Rx Terminal
TRANSMITTER A1
RECEIVER A1
MODEM A1
ACU
FUSE PANEL
FAN ASSEMBLY
POWER SUPPLY A1
KEYPAD, HANDSET, AND
DS1 ACCESS
Splitter-Combiner
MODEM A2
HLM
TRANSMITTER A2
RECEIVER A2
POWER SUPPLY A2
HLM
SPU CONTROLLER
SERVICE CHANNEL*
MHSB Terminal
MHSB, SD/FD Terminal
M12 7
M12 6
M12 5
M12 4
M12 3
M12 2
M12 1
M12 7
M12 6
M12 5
M12 4
M12 3
M12 2
M12 1
STBY
Filler Unit
M12 7
M12 6
M12 5
M12 4
M12 3
M12 2
M12 1
*Service Channel is optional.
For programmable add-drop
configurations, M12 Units need to
be equipped for dropped T2’s only.