Reliability; Maintainability - Microsemi SyncServer S300 User Manual

Specifications
BIOS. 512KB FLASH memory used on the ETX module for system BIOS. This part is
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soldered to the ETX module. This part is not reprogrammed in normal operation. The con-
tent in this device is non-volatile and there is no procedure to clear this memory.
86-611x PCB
512MB CompactFlash Primary (J3). The 512MB CompactFlash device is installed on the
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86-611x PCB. This part is used as a virtual Hard Drive by the ETX Module's x86 pro-
cessor. There is no procedure to clear this memory. This part is socketed (J3).
512MB CompactFlash Secondary (J4). The 512MB CompactFlash device is installed on
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the 86-611x PCB. This part is used as a virtual Hard Drive by the ETX Module's x86 pro-
cessor. There is no procedure to clear this memory. This part is socketed (J4).
U41 is a Xilinx XC2S200 FPGA that is re-programmed each time the board is powered
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up. The program for this part is contained in J3's CompactFlash memory and is down-
loaded into U41 by U39. The content of this device is volatile and is lost when the board is
powered down. This part is soldered to the PCB.
M93C46 1Kb Serial Microwire EEPROM for Intel 82551ER Fast Ethernet Controller con-
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figuration (U34). This non-volatile part is used at power-on to initialize registers in the
Intel Fast Ethernet Controller. This part is not reprogrammed in normal operation. This
part is a DIP that is mounted in an 8-pin socket.
M93C46 1Kb Serial Microwire EEPROM for Intel 82541ER Gigabit Ethernet Controller
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configuration (U36). This non-volatile part is used at power-on to initialize registers in the
Intel Gigabit Ethernet Controller. This part is not reprogrammed in normal operation. This
part is a DIP that is mounted in an 8-pin socket.
M93C46 1Kb Serial Microwire EEPROM for system configuration (U40), controlled by
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PCI9030. This non-volatile part is used to store unit specific data. This part is a DIP that is
mounted in an 8-pin socket.
MC9S12DG256 (U2)
(U2) 256KB Flash program memory. This Flash memory is used for microprocessor pro-
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gram storage. This part is not reprogrammed in normal operation. The content in this
device is non-volatile and there is no procedure to clear this memory. This part is
soldered to the PCB.
(U2) 12KB RAM. This RAM is embedded in U2 and is used as operating memory. The
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content in this device is volatile and is lost when the SyncServer is powered down. This
part is soldered to the PCB.
(U2) 4KB EEPROM. This EEPROM is embedded in U2 and is used to store non-volatile
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configuration data. This part is soldered to the PCB.

Reliability

MTBF:>50,000 hours (5.7 years) for all supported display intensity settings. Calculated per Tel-
cordia (Bellcore) SR332, Issue 1.

Maintainability

This unit contains no user-serviceable parts. Please return to Microsemi for servicing.
The SyncServer functions without user adjustments throughout its life span.
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