cadIfDsOfdmChlLowFreq
CADANT-CMTS-DOWNCHANNEL-MIB ·
.1.3.6.1.4.1.4998.1.1.15.2.5.1.2
Object
column
r/w
hertz Integer32
The lowest subcarrier center frequency of the low guard band just below the encompassed spectrum. While this is the center frequency of a subcarrier, it is the low edge frequency of the OFDM channel. The center frequency of subcarrier zero is 6.4 MHz less than this value. Zero means not configured. Must be configured to go in-service.
Context
- MIB
- CADANT-CMTS-DOWNCHANNEL-MIB
- OID
.1.3.6.1.4.1.4998.1.1.15.2.5.1.2- Type
- column
- Access
- readwrite
- Status
- current
- Units
- hertz
- Parent
- cadIfDsOfdmChlEntry
- Table
- cadIfDsOfdmChlTable
- Siblings
- 21
Syntax
hertz Integer32
Values & Constraints
Object Constraints
range: 0-0
range: 108000000-1770000000
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| cadIfDsOfdmChlIfIndex The ifIndex of this OFDM downstream channel. | column | IF-MIBInterfaceIndex | .1.3.6.1.4.1.4998.1.1.15.2.5.1.1 |
| cadIfDsOfdmChlMaxRoundTripDelay Maximum round-trip propagation delay for cable
plant in Microseconds. Should be configured for
the furthest CM in all cable groups containing
this DownChannel. Default of 800 Mi… | column | Microseconds Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.10 |
| cadIfDsOfdmChlPCNormAllowedUsage Maximum percentage of downstream resources that may be
used by non-emergency telephony services. This is also
the maximum amount of resources non-exclusively allocated
to sess… | column | percent Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.11 |
| cadIfDsOfdmChlPCNormResUsage Minimum percentage of downstream resources that may be
used by non-emergency telephony services. This is also
the maximum amount of resources exclusively allocated
to sessions… | column | percent Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.12 |
| cadIfDsOfdmChlPCEmerAllowedUsage Maximum percentage of downstream resources that may
be used by emergency telephony services. The default
is set from the globals in CadPCMibBase. | column | percent Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.13 |
| cadIfDsOfdmChlPCEmerResUsage Minimum percentage of downstream resources that may be
used by emergency telephony services. If the value of
this object is non-zero, then a portion of the downstream
bandwid… | column | percent Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.14 |
| cadIfDsOfdmChlPCTotalAllowedUsage Maximum percentage of downstream resources that may
be used by both normal and emergency telephony services.
The default is set from the globals in CadPCMibBase. | column | percent Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.15 |
| cadIfDsOfdmChlPCPreemptionAllowed Indicates whether the system will preempt another session
for an emergency call. The default is set from the
globals in CadPCMibBase. | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4998.1.1.15.2.5.1.16 |
| cadIfDsOfdmChlRfPortBasePower The CCAP operational transmit power. See the
reference for recommended and required power levels
for the equivalent total number of 6 MHz channels on
the RF port. The default is… | column | dBmV Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.17 |
| cadIfDsOfdmChlSubcZeroCentFreq The center frequency of subcarrier 0. This is 102.4 MHz less
than (cadIfDsOfdmChlLowFreq + cadIfDsOfdmChlHighFreq)/2
if cadIfDsOfdmChlLowFreq is divisible by 250 KHz.
Otherwise,… | column | hertz SNMPv2-SMIInteger32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.18 |
| cadIfDsOfdmChlLowActSubcCentFreq The low center frequency of the lowest active subcarrier in the
OFDM channel. The low edge of the encompassed spectrum is
half a subcarrier less than this value. | column | hertz SNMPv2-SMIInteger32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.19 |
| cadIfDsOfdmChlHighActSubcCentFreq The high center frequency of the highest active subcarrier in the
the OFDM channel. The high edge of the encompassed spectrum is
half a subcarrier more than this value. | column | hertz SNMPv2-SMIInteger32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.20 |
| cadIfDsOfdmChlPlcLowSubcCentFreq The center frequency of the lowest frequency subcarrier of
the PLC itself. By definition, this is 2.8 MHz higher than
cadIfDsOfdmChlPlcBlkLowSubcCentFreq (i.e., the PLC block
is … | column | hertz SNMPv2-SMIInteger32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.21 |
| cadIfDsOfdmChlNumActSubc The configured number of subcarriers based on the high and low
center frequencies of the active subcarriers in the
the OFDM channel. | column | SNMPv2-SMIInteger32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.22 |
| cadIfDsOfdmChlHighFreq The highest subcarrier center frequency of the high guard band
just above the encompassed spectrum. While this is the center
frequency of a subcarrier, it is the high edge frequ… | column | hertz Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.3 |
| cadIfDsOfdmChlPlcBlkLowSubcCentFreq The center frequency of the lowest frequency subcarrier of
the 6 MHz encompassed spectrum containing the PLC.
Must be an integral number of Megahertz. Zero
means not configured. … | column | hertz Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.4 |
| cadIfDsOfdmChlCyclicPrefix The cyclic-prefix, converted into samples
using the sample rate of 204.8 Million samples/second. | column | samples Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.5 |
| cadIfDsOfdmChlRolloffPeriod The roll-off period used in windowing, converted into samples
using the sample rate of 204.8 Million samples/second. | column | samples Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.6 |
| cadIfDsOfdmChlTimeIntlvrDepth The number of symbols in the time domain for
interleaving. The range is 1..32 for 50 KHz
subcarrier spacing, and 1..16 for 25 KHz spacing.
A value of one means no time interleavin… | column | symbols Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.7 |
| cadIfDsOfdmChlSubcSpacing The subcarrier frequency width for this OFDM channel. | column | hertz Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.8 |
| cadIfDsOfdmChlContPilotScaleFactor The scale factor M used to calculate the total number of
continuous pilots defined using the PLC. The number
of continuous pilots also
depends on the encompassed bandwidth. | column | Integer32 | .1.3.6.1.4.1.4998.1.1.15.2.5.1.9 |