Viavi ONX-220, User Manual

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ONX-220 User's Guide
22135173, Rev. 000 June 2020 203
Chapter 12 Appendix
Specifications (continued)
Hum Specification
Hum frequency
range 25 Hz to 1000 Hz
Minimum MER 33 dB
Accuracy up to
5% hum +/- 0.8%
From 5 to 10% +/- 1.0%
OFDM Signal Performance Metrics
OFDM Channels 24 - 192 MHz wide - up to 3
active OFDM channels
Level — max, min,
average, standard
deviation relative to a 6 MHz carrier per
CableLabs
©
MER — max,
min, average,
standard deviation,
percentile 16 to 44 dB
MER channel band
graph max, min, avg across entire OFDM
carrier
Noise max
Echo dBc
ICFR in-carrier frequency response (dB)
Spectrum/IUC spectrum display, including carrier
and ingress under carrier
OFDM Profile Analysis
Profiles A, B, C, D, NCP, and PLC
(more profiles as implemented)
Lock status, codeword errors
(corrected and uncorrected)
DOCSIS Testing
Supports DOCSIS 3.1 bonding up to 32 SC-QAM + 2
OFDM downstream channels, 8 SC-QAM + 2 OFDMA
upstream channels
Compliant with CableLabs® specifications for DOCSIS
3.1
Compliant with CableLabs® specifications for DOCSIS
3.0 (32x8 bonding)
Displayed DOCSIS Results
Top level Number of bonded channels, min
receive level, max BER (pre-FEC),
min and max MER, max transmit
level, max ICFR (in-channel
frequency response)
Details Downstream SC-QAM (over time
charts: level, MER, BER, DQI),
Upstream (charts: transmit over
time, upstream ICFR, upstream
EQ taps
Service tests Registration, Throughput, Ping/
Traceroute, Packet Quality; cable
modem pass-through
OFDM OFDM selected in scan, number
of subcarriers, PLC lock status,
frequency, level, and MER, CWE
(corr, uncorr); OFDM channel(s) -
Level variation (max, min, avg),
MER variation (max, min, avg),
ICFR, profile analysis (locked, CWE
corr, CWE uncorr)
Downstream
Frequency range 42/65/85/204 to 1,218 MHz
(dependent on currently active
diplexer frequency)
Upstream
Frequency range 5 to 204 MHz (dependent
on currently active diplexer
frequency)
OFDMA channels ≥2, per DOCSIS specification
Transmit level
range (max) +61 to +48 dBmV depending on
modulation format and number
of bonded carriers, per DOCSIS
specification
SC-QAM channels up to 8 per DOCSIS specification