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S4 - Reserved for Future Use .......................................................................................................................................... 24
S5 - Output Offset Code Select - Matrix A ..................................................................................................................... 25
S6 - Input Offset Code Select - Matrix A ........................................................................................................................ 26
S7 - Output Offset Code Select - Matrix B...................................................................................................................... 27
S8 - Input Offset Code Select - Matrix B ........................................................................................................................ 28
Alarm Interface Board Switch and Jumper Settings......................................................................................... 29
J1, J2, J3 Communication Mode Select Jumper .............................................................................................................. 29
S1 - Communication Speed............................................................................................................................................. 30
S2 - CPU Address Select................................................................................................................................................. 31
Carrier Board Switch Settings (Analog)........................................................................................................... 32
S1 - House Sync Line Select ........................................................................................................................................... 33
S2 - Reserved for Future Use .......................................................................................................................................... 33
Carrier Board Switch Settings (Digital) ........................................................................................................... 34
S1 - Reserved for Future Use .......................................................................................................................................... 35
S1 - House Sync Line Select ........................................................................................................................................... 35
Power Supply Jumper Settings.......................................................................................................................... 36
J1 Over Temp Shut Down Mode Select Jumper.............................................................................................................. 37
J3 Fan Voltage Select Jumper ......................................................................................................................................... 37
Subassembly Installation ...................................................................................................................................... 38
Power Supply Installation................................................................................................................................. 38
Input Buffer Board Installation......................................................................................................................... 38
48x16 Crosspoint Board Installation................................................................................................................ 38
Carrier Board Installation................................................................................................................................ 39
Output Monitor Control Board Installation...................................................................................................... 40
External Reference Interface Board Installation .............................................................................................. 40
Alarm Interface Board Installation................................................................................................................... 40
Output Connector Interface Board Installation................................................................................................ 40
Input Connector Interface Board Installation................................................................................................... 40
Circuit Board Retaining Bracket Installation................................................................................................... 41
CHAPTER 3 – OPERATION................................................................................................................................ 43
General.................................................................................................................................................................. 43
Alarm Interface Board .......................................................................................................................................... 43
Alarm Signal Monitoring.................................................................................................................................. 43
Power Supply Output Voltage Alarm (PS1/PS2) ............................................................................................................ 43
Power Supply Over Temperature Alarm (OT1/OT2)...................................................................................................... 43
House Sync Error Alarm (VT1/VT2).............................................................................................................................. 44
Synchronous Digital Audio House Sync Error Alarm (RF1/RF2)................................................................................... 44
Output Monitor Control Software Fault Alarm (MON) .................................................................................................. 44
External Control Interface (ECI)...................................................................................................................... 44
Point-to-Point and Multidrop Modes of Operation.......................................................................................................... 44
Message Verification....................................................................................................................................................... 44
Status Solicitation............................................................................................................................................................ 44
Alarm Latching ............................................................................................................................................................... 44
Time Stamping ................................................................................................................................................................ 44
Power Transitions............................................................................................................................................. 45
Protocol ............................................................................................................................................................ 45
Message Format .............................................................................................................................................................. 45
Command Set.................................................................................................................................................................. 46
Status Query................................................................................................................................................................ 46
Clear Alarms ............................................................................................................................................................... 46
Unsolicited Alarms ..................................................................................................................................................... 46
Sample Query and Response........................................................................................................................................... 47
CHAPTER 4 –FUNCTIONAL DESCRIPTION................................................................................................. 49
Input Connector Interface Board........................................................................................................................... 49
Output Connector Interface Board........................................................................................................................ 49
Input Buffer Board (Analog)................................................................................................................................. 49
Input Buffer Board (Digital) ................................................................................................................................. 49