Comtech EF Data CDD-880, Инструкция по установке и эксплуатации

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CDD-880 Multi Receiver Router MN-CDD880
Ethernet-based Remote Product Management Revision 2
6–32
While “0” is an acceptable assignation, the preferred practical range is from 1
to 255.
• Guard Band (0-1000) – Enter the Amount of Transmit Off time, in milliseconds, between
slots to prevent signal overlap.
• Preamble – This read-only value identifies the preamble length in VersaFEC frames.
•
Data Slot Size – This read-only value identifies the minimum number of Versa FEC blocks in
a data slot.
•
Slots in Frame – This read-only value identifies the allowable total number of slots for each
frame. When assigned slots are needed, they are taken from this pool.
• Cycle Length – This read-only value identifies the total cycle length, in milliseconds, of the
TAP message.
• LNB LO Frequency – Assign the LNB LO value, used to send RF frequency values in TAP
messages. Resolution = 100Hz.
•
Satellite Frequency Conversion – Assign the correct Satellite Frequency Conversion value,
in MHz, for this hub unit based on the RF equipment used at this site.
Click [Submit] to save.
ECM Hub Status
(read-only)
•
Current Contention slots available – “Contention slots” are the number of time slots in the
TAP transmission cycle that are available for assignment to requesting (probing) Remotes.
From left to right:
Column Description
Index This is the automatically assigned internal table index number.
IP IP Address for the identified CDM-840 Remote Router.
State Current state of this CDM-840 – one of the following will apply:
•
Probing – The unit is requesting service (registration / switching) from
the VMS.
•
Registered – The unit has been registered with the VMS.
•
Waiting to switch – the Unit is awaiting dSCPC switch command from
the VMS.
Frames Transmitted Count of frames received from this CDM-840.
Error Frames Count of frames received with errors from this CDM-840.