Specifications

Document 12245 Rev. I Sheet 13 of 39
This protocol was designed to be somewhat compatible with that of earlier SSPA products. Some messages
that are not applicable to this type of amplifier were left in, because it is reasonable to assume that they might
be routinely sent by already existing code, and some response would be expected. Such messages are
marked in this table with gray vertical bars. These messages will return fixed values that should satisfy
existing software, as indicated in the table. They are not described in the Function Reference.
Message Table
Instr
Sub-
Instr Name/(Section)
Data Values
 Sent to Amplifier  Returned by Amplifier
04
Reset Microprocessor
(3.1)
 None
 None
Resets microprocessor.
07
Get Unit Type
(3.2)
 None
 B
SIO_UNIT_TYPE
B
SIO_UNIT_TYPE
= 34 for amplifiers (outdoor and antenna-mount) using this protocol.
08
Get Faults
(3.3)
 [B
NEW_INFO
]
If B
NEW_INFO
is not present, or is not equal to 31, the “old style” set of flags (compatible
with SSPA v2.xx) will be returned as follows:
 01 b
LSUM_CURRENT
b
LSUM_VOLTAGE
0 b
LSUM_OUTPUT_POWER
b
LFLT_BUC_FAIL
b
LSUM_INPUT
01 000 b
LSUM_HARDWARE
b
LFLT_TEMP_SHDN
b
LFLT_TEMP_HI
01 b
LSUM_HDW_WARNING
0 b
LSUM_PREFL_HIGH
000
01 b
ASUM_CURRENT
b
ASUM_VOLTAGE
0 b
ASUM_OUTPUT_POWER
b
AFLT_BUC_FAIL
b
ASUM_INPUT
01 000 b
ASUM_HARDWARE
b
AFLT_TEMP_SHDN
b
AFLT_TEMP_HI
01 b
ASUM_HDW_WARNING
0 0 b
ASUM_PREFL_HIGH
000
01 0 b
LSUM_FAN
b
LSUM_RC_FAILURE
b
LFLT_MAINT_WARN
b
LFLT_LOCAL_WARN
0
01 0 b
ASUM_FAN
b
ASUM_RC_FAILURE
b
AFLT_MAINT_WARN
b
AFLT_LOCAL_WARN
0
If B
NEW_INFO
is present and equal to 31, the “new style” set of flags below will be
returned:
 01 b
LFLT_EXT_INH
b
LFLT_POUT_HI
b
LFLT_POUT_LO
b
LSUM_MODULE
b
LFLT_VINP_HI
b
LFLT_VINP_LO
01 b
AFLT_EXT_INH
b
AFLT_POUT_HI
b
AFLT_POUT_LO
b
ASUM_MODULE
b
AFLT_VINP_HI
b
AFLT_VINP_LO
01 b
LFLT_LOCAL_WARN
b
LFLT_MAINT_WARN
0 b
LFLT_INPR8
b
LFLT_INPR7
b
LFLT_BUC_FAIL
01 b
AFLT_LOCAL_WARN
b
AFLT_MAINT_WARN
0 b
AFLT_INPR8
b
AFLT_INPR7
b
AFLT_BUC_FAIL
01 b
LFLT_INPR6
b
LFLT_INPR5
b
LFLT_INPR4
b
LFLT_INPR3
b
LFLT_INPR2
b
LFLT_INPR1
01 b
AFLT_INPR6
b
AFLT_INPR5
b
AFLT_INPR4
b
AFLT_INPR3
b
AFLT_INPR2
b
AFLT_INPR1
01 b
LFLT_REFL_DET_WARN
b
LFLT_PREFL_DET_FAULT
b
LFLT_PREFL_HIGH_WARN
b
LFLT_PREFL_HI_FAULT
b
LFLT_TEST_FW_WARN
b
LFLT_REL_PWR
01 b
AFLT_REFL_DET_WARN
b
AFLT_PREFL_DET_FAULT
b
AFLT_PREFL_HIGH_WARN
b
AFLT_PREFL_HI_FAULT
b
AFLT_TEST_FW_WARN
b
AFLT_REL_PWR
01 00 b
LFLT_ANT_DL_FAIL
b
LFLT_RC_FAILURE
b
LFLT_FAN2_WARN
b
LFLT_FAN1_WARN
01 00 b
AFLT_ANT_DL_FAIL
b
AFLT_RC_FAILURE
b
AFLT_FAN2_WARN
b
AFLT_FAN1_WARN
b
LSUM_xxx
= Latched summary fault xxx …
b
ASUM_xxx
= Active summary fault xxx …
b
LFLT_xxx
= Latched fault xxx …
b
AFLT_xxx
= Active fault xxx …
09
Clear Service Request
(3.4)
 None
 None
Clears (resets) the Service Request Form ‘C’ contacts.
0A
Fault Reset
(3.5)
 None
 None
Resets (clears) any latched faults that are not currently active. If no fault condition
still exists, the Service Request contacts will also be cleared.
0B
Self Test
(3.6)
 None
 None
Performs self-test.