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Maintenance
18.7. Troubleshooting 400MHz Modem Communication Faults
18.7.1. 400MHz Modem Queries:
The 400MHz modem assemblies facilitates the use of line-based commands via the ACU's front panel, its'
internal HTML page, or using remote diagnostic software such as DacRemP or ProgTerm. The use of these
commands will aid in troubleshooting communication failures between the above decks and below decks
modems. Listed below are the available commands:
Command
<0000 <cr>
<1234 <cr>
<0273 <cr>
<0411 <cr>
>0000 <cr>
>1234 <cr>
>0273 <cr>
>0411 <cr>
18.7.2. Modem Query Methods
The following text provides instruction on how to submit modem queries using any one of four different
methods listed below. These instructions assume that the operator have a clear understanding of Menu
navigation and entry via the ACU front panel, or connection requirements for using remote diagnostic
software, and/or the internal HTML page of the ACU. Refer to the appropriate manual text if further
instruction on wiring connections or button pushing is required.
Description
BDE Modem RSSI (Receive Signal Strength
Indicator)
BDE Modem Serial Number Query
BDE Modem Temperature Query
BDE Modem Software Version and
Configuration Query
ADE Modem RSSI (Receive Signal Strength
Indicator)
ADE Modem Serial Number Query
ADE Modem Temperature Query
ADE Modem Software Version and
Configuration Query
18-8
9711-92 Ku-Band TXRX
Typical Response
RSSI P-43 R-44
P = Pedestal Control Channel
R = Radio Control Channel
Sn 000001D2F1F1
Temp = 34.9c
Temperature expressed in Celsius
Modem Ver 1.00B-1
Software version – configuration Dash #
RSSI P-43 R-50
P = Pedestal Control Channel
R = Radio Control Channel
Sn. 00000102FC18
Temp = 27.5c
Temperature expressed in Celsius
Modem Ver 1.00B-2
Software version – configuration Dash #
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Troubleshooting
