Teledyne 6 RU Chassis, Руководство по эксплуатации

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6 RU SSPA Chassis Operations Manual 202058 REV AA 51
2.3.5.6 Reset
Allows the user to reset the SSPA controller hardware to activate certain settings. For
example, when the IP Address is modified the SSPA must be reset for it to use the
new IP Address.
Firmware version 6.00 allows multiple reset levels for SSPA unit:
1.
I/O Card
— Resets all hardware on the removable M&C card as well as the
embedded cards on all RF modules. The amplifier will be Muted during the
reset process. Hence, reset will cause a momentary loss of RF output. All
communication links to remote M&C will be dropped until reset process is
complete. The amplifier will use currently selected communication parame-
ters (IP address, baud rate, etc);
2.
I/O Card & RFModule
— Resets only embedded chips in all RF modules. I/
O card remains operational and maintains communication link to remote
M&C. The RF module will be muted during the reset process. This function
is useful for clearing latched fault conditions in SSPA units under N+1 sys-
tem control;
3.
Coms only
— Resets only communication parameters. If unmuted, the
SSPA maintains an unchanged RF output level during reset. Remote COM
links will be dropped and re-enabled with currently selected parameters;
4.
ClrFaults
— Clears all latched faults and remaining fault history information.
SSPA remains fully operational during the process;
5.
MemMode
— Allows alternate SSPA settings retention function. Two choic-
es are allowed:
○
RAM Mode
— In this mode SSPA will not backup any settings
changes to internal EEPROM. This mode is optional and
needs to be set by the user every time when SSPA endured
power cycle or I/O card reset. This mode is beneficial when the
SSPA application requires frequent changes to the SSPA state
(such as mute/unmute or attenuation changes). Since any
EEPROM device has limited write cycles, RAM mode allows
the user to execute unlimited settings changes. If the SSPA
experiences a power or reset cycle in RAM mode, it will use
the last saved settings setup before RAM was engaged;
○
EEPROM mode
— Default SSPA mode. Without user inter-
vention, the SSPA will retain this mode of operation. All chang-
es to settings setup performed over local or remote interface
will be backed up to EEPROM within 3 seconds time interval.
If the SSPA experiences a power cycle or reset, the last saved
set of settings will be applied to the unit upon each power up or
I/O card reset. Any EEPROM device has a limited ability to en-
dure write cycles. Maximum write cycles ability for SSPAs with
firmware version prior to 6.00 is 150,000 times. After exceed-