Specifications

Document 12245 Rev. I Sheet 25 of 39
b
MUTED:SERIO
Muted by Serial I/O
b
MUTED:LOCAL
Muted by local MUTE button (or on power-up if power-up state is set to mute)
The flags in the second byte indicate the four conditions that will turn the output OFF (such that it cannot
be
turned back on with an UN-MUTE command):
b
HICURR_SHTDN
High Current Shutdown Fault
b
GATE_V_SHTDN
: Gate Voltage Shutdown Fault
b
TH_SHTDN
: Thermal (overtemperature) Shutdown Fault
b
BUC_UNLK_INH
Amplifier has shut down because the (optional) BUC may be unlocked
b
RF_INHIBIT
The amplifier is OFF because one or more of the (optional) Parallel I/O inputs,
programmed to RF Inhibit, on a connected RCP-2001 is asserted (active).
The third byte is used to indicate special conditions that un-mute the SSPA. However, none of these
conditions apply to the amplifiers using this protocol, so the six bit flags are all 0:
01 000 000
The fourth byte is used to indicate whether the module has been shut down because the external inhibit
control line has been asserted. Although this feature is used in other VertexRSI (MAXTECH) SSPAs, the
outdoor or antenna-mount SSPA module’s “external” inhibit control line is located inside the amplifier
enclosure and should never be asserted. A fault is reported if this happens.
01 000 00 b
EXT_INHIBIT_OR_FASTMUTE
If the output status is unknown, a single byte “?” (3F) will be returned.
3.8.6 Get 1:1 Status (16 55)
The unit number of this amplifier (1 or 2), and the version number of the system controller are returned as two
positive integer values, separated by a comma.
The unit number will be “1” or “2”, or it can be “?” if there is a problem that prevents the system from
determining the unit number.
The system controller version number is “1” for the version of firmware covered by this document, and would
change in future versions only if a significant change is made to the operation of the 1:1 system.
3.8.7 Get Firmware Version Info (16 57)
The mask number and version number of the firmware installed in the unit are returned as two ASCII strings,
separated by a space (20). The lengths of the mask number and version number are variable.
Unless some non-standard options are installed, the mask number should be “000”.
Example, mask number is “021A” and version number is “2.01”:
SEND TO UNIT: 02 07 01 16 57 98 03
UNIT RESPONDS: 02 10 01 16 57 30 32 31 41 20 32 2E 30 31 77 03
3.8.8 Get Total Amplifier Current (16 58)
Returns the TOTAL current drawn by the SSPA, as a single analog value, measured in amps. For SSPAs
using this protocol, version 2.0x and higher, this value will be the same as returned by the Get Module
Current message (section 3.8.3).
A question mark (3F) is returned if any current stage cannot be read due to a hardware problem.
3.8.9 Get Specific Fault Info (16 59)
Enumerated values are returned, one for each fault that has been detected. If no hardware or system faults
are detected, 30 (None) is returned. Hardware or system fault codes are cleared by issuing a Fault Reset
message (section 3.5).