Teledyne HPAC-2005, Operation Manual

Page: 54 / 156

54 205356 REV T 3 RU SSPA Chassis Operations Manual
2.2.5.6 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 dur-
ing 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 communi-
cation parameters (IP address, baud rate, etc);
•
2.I/O Card & RFModule
— Resets only embedded chips in all RF mod-
ules. 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 system 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 selected parameters;
•
4.ClrFaults
— Clears all latched faults and remaining fault history infor-
mation. SSPA remains fully operational during the process;
•
5.MemMode
— Allows alternate SSPA settings retention function. Two
choices are allowed:
○
RAM Mode
— In this mode SSPA will not backup any settings chang-
es 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 re-
set. This mode is beneficial when the SSPA application requires fre-
quent changes to the SSPA state (such as mute/unmute or attenua-
tion 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 intervention,
the SSPA will retain this mode of operation. All changes 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 endure write cycles. Maximum write cycles abil-
ity for SSPAs with firmware version prior to 6.00 is 150,000 times. Af-
ter exciding write cycles limit, the SSPA will operate in RAM mode,
utilizing a default set of settings on each power up. Firmware version
above 6.00 allows 3,000,000 minimum write cycles before opting out
to RAM mode;
•
6.Back
— Select to return to the Options Sub-Menu (
Section 2.2.5
).