Specifications

Document 12245 Rev. I Sheet 19 of 39
Message Table
Instr
Sub-
Instr Name/(Section)
Data Values
 Sent to Amplifier  Returned by Amplifier
This command offers two different ways of defining which unit is to be switched on-
line. The first, which is compatible with previous SSPA types, allows you to switch
the addressed unit (“this” unit) on or off-line. The second allows you to switch UNIT 1
or 2 on-line. UNIT 1 is identified as the one that connects to PORT 1 of the wave-
guide switch, and should have the end of the 1:1 cable labeled "1" plugged into it.
A switch command will not be obeyed if:
(i) the system is in AUTO mode, and
(ii) the command would take a good unit off-line, and put a faulted unit on-line.
The hardware in the antenna-mount 1:1 system allows each amplifier to be able to
switch itself on-line only. A command to an amplifier that switches the other on-line
is forwarded over the link to the other amplifier. This means that if the link is broken,
or if the other unit has failed in some way, a command to switch it on-line cannot be
obeyed.
19 54
AntDL Switch Command
(3.11.2)
 B
ANT_DL_SW_COMMAND
 None
B
ANT_DL_SW_COMMAND
= 30 to switch to the antenna output
31 to switch to the dummy load.
1C
RC Panel Message
(3.12)
To get RCP Panel status:
 None
 B
RCP_STATUS
…
See Section 3.12 for a complete list of RCP Panel Status codes.
This message is not answered by the SSPA, but rather by a connected RCP-2001
Remote Control Panel. If the RCP-2001 is not present, or is not powered, this
message will receive NO RESPONSE.
To reset RCP reported errors:
 0A
 None
20
Unit Status
(3.13)
 None
 01 0 b
RF_OUTPUT_STATUS_OPERATING
b
MUTE_CONTROL_MUTED
0 b
LSUM_ANY_WARNING
b
LSUM_ANY_FAULT
01 b
OTHER_UNIT_FAULTED
b
RMODE_AUTO_OR_SPARE
b
DUMMY_LOAD
b
ANTENNA
b
THIS_UNIT_STANDBY
b
THIS_UNIT_ONLINE
01 0 b
CONTROL_MODE_LOCAL_OR_MAINTENANCE
b
CONTROL_MODE_REMOTE_OR_MAINTENANCE
0 b
OTHER_UNIT_STANDBY
b
OTHER_UNIT_ONLINE
Previously, the summary warning flag indicated that any warning was Active. The
distinction between Active and Latched was meaningless, because all warnings in
firmware versions prior to 2.50 were not latched. New warnings added in version
2.50 will be latched, so the flag will report when any warning is Latched. If a Non-
Latched warning occurs, such as LOCAL MODE WARNING, the b
LSUM_ANY_WARNING
flag will be set while the warning is active, and will be clear when the user exits
LOCAL mode. If a Latched warning occurs (such as FAN FAILURE) the flag will be
set until faults are reset.
For both the THIS_UNIT and the OTHER_UNIT ONLINE/STANDBY flag pairs, if
there is a problem reading the 1:1 switch, or if the switch is being changed, both
ONLINE and STANDBY flags will be set. If the switch is not connected, both will be
clear. (Under normal conditions, only one flag of each pair would be set, and the
other would be clear.)
For the ANTENNA and the DUMMY_LOAD flags, both are clear if the Ant/DL option
is not enabled. Either one being set and the other clear indicates that the switch is in
the corresponding position. Both are set for any other condition, such as an Ant/DL
fault.