Comtech EF Data CDD-880 Specifications download pdf (Page 89)

CDD-880 Multi Receiver Router Revision 1

Ethernet-based Remote Product Management MN-CDD880

5–29

• MulticastIP–EntertheIPaddressfortheMulticastoftheTAPmessagethatissentoutby

thisCDD‐880toalloftheassociatedCDM‐840RemoteRoutersinthatgroup.



• GroupID(0‐255)–AssigningauniqueGro up ID numbertothisCDD‐880(i.e.,theHCC)and

its associated CDM‐840 Remote Router

s defines the group of equipment that will respond

totheoutputofthecontroller.Enterthe GroupIDnumberfortheCDD‐880.



While“0”isanacceptabledesignation,thepreferred,practicalrangeis1‐255.



• Guard Band – This is th

e Amount of Transmit Off time, in milliseconds,  between slots  to

preventsignaloverlap.



• Preamble(read‐only)–ThisvalueidentifiesthepreamblelengthinVersaFECframes.



• DataSlotSize(read‐only)–ThisvalueidentifiesMinimumnumberofVersaFECblocksina

dataslot.



• Slot

sinFrame–Assigntheallowabletotalnumberofslotsforeachframe.Whenassigned

slotsareneeded,theyaretakenfromthispool.



• SwitchRate–EntertheinitialDataRateatwhichremotesareswitchedtodSCPC.



• CycleLength(read‐only)–Thisvalueidentifiesthetot

al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 Freq uency Conversion – Assign the correct Satellite Frequency Conversionvalue,

inMHz,forthishubun

itbasedontheRFequipmentusedatthissite.



Click[Submit]tosavethesesettings.

ECM Hub Status (read-only)

• CurrentContentionslotsavaila ble–“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.

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 123 124

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Comtech EF Data CDD-880 Specifications Page 89

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