VIAVI Trilithic 1G DSP Sweepless DOCSIS 3.1 Plant Maintenance Meter with Sweepless Sweep

DOCSIS 3.1 plant maintenance meter with cable modem sweep and forward passive sweep, gigabit Ethernet testing and 1.25 GHz spectrum analysis.

Channel Bandwidth: 6 MHz and 8 MHz
Amplitude Range: -40 dBmV to +50 dBmV
Modulation Types (Analog): NTSC, PAL B/D/G/H/I/K/N and SECAM B/D/G/H/I/K
Modulation Types (Digital): 16/32/64/128/256 QAM Annex A, 64/256 QAM Annex B/C, OFDM 4K/8K

Datasheet

Overview

The VIAVI Trilithic 1G DSP Sweepless is the plant maintenance model of the DSP Series meters. It combines CATV signal measurements, a DOCSIS 3.1 cable modem, gigabit Ethernet testing and optical test support in one instrument for systemwide maintenance work, and adds the sweepless sweep functions (ordering part number TRI-DSP-1G-D31-SWPLS).

Sweepless sweep

The Cable Modem Sweep function uses the cable modem built into the meter to perform in-band sweeps within the modem carriers. The meter injects up to eight upstream modem carriers that talk back to the CMTS and uses the pre-equalized data for each carrier to plot a frequency response of the upstream. It works with any DOCSIS 3.0 or DOCSIS 3.1 compatible CMTS with pre-EQ enabled and does not require headend sweep gear. On DOCSIS 3.1 equipped meters, Cable Modem Sweep with OFDMA performs a detailed return band sweep using only the internal cable modem, including close to the diplexer. The Forward Passive Sweep function uses the live carriers in the HFC distribution system to test and set the tilt and gain of distribution amplifiers without dedicated headend equipment.

Ethernet and cable modem testing

The 1G DSP achieves throughput testing speeds of up to a gigabit per second using a dedicated Ethernet test port or the internal cable modem. It performs roundtrip or one-way Key Parameter Index (KPI) measurements with constant payload testing for Layer 2 through Layer 4, for verification of Ethernet SLA and QoS metrics. Cable modem statistics, OFDM profile analysis, upstream linear distortion testing and ingress-under-carrier measurements are also supported.

Operation

The meter has a large, high-resolution color touchscreen, pass/fail indicators and autotest apps, remote control via a web browser, long battery life with a quick charge time and a glow-in-the-dark keypad. Up to five technicians can share one 1G DSP with individual profiles, and test results can be synchronized with StrataSync over Ethernet, DOCSIS or WiFi.

Key Features

Cable Modem Sweep using the built-in cable modem to perform in-band upstream sweeps within modem carriers
Cable Modem Sweep with OFDMA for detailed return band sweep using only the internal DOCSIS 3.1 cable modem
Forward Passive Sweep using live HFC carriers to set tilt and gain of distribution amplifiers without headend gear
Internal DOCSIS 3.1 modem operating in DOCSIS 3.0 (32x8) and DOCSIS 3.1 modes
Throughput testing up to 1 GbE using a dedicated test port or the internal cable modem
Roundtrip or one-way constant payload testing for Layer 2-4 Ethernet SLA and QoS verification
SFP optical power measurement with link speed, wavelength, Tx power and Rx power
Return spectrum 4 to 205 MHz and forward spectrum 5 to 1250 MHz
DOCSIS 3.1 OFDM channel measurements including PLC constellation, MER and decoder stress
Upstream Traffic Control Plus heat map for ingress under the upstream
Downstream QAM Error Vector Spectrum for ingress under downstream carriers
Upstream linear distortion testing: equalizer taps, group delay and in-channel response
Frequency Domain Reflectometer for distance to cable faults
Dual RF test ports with source generator for CW, QAM and OFDM carriers from 5 to 85 MHz
Built-in 802.11 b/g/n 2.4/5 GHz WiFi adapter with survey test mode
Remote meter control via web browser, PC, smartphone or tablet
Multi-user support for up to 5 technicians
800 x 480 pixel color LCD touchscreen and glow in the dark keypad
StrataSync synchronization via Ethernet, DOCSIS or WiFi

Specifications

Level Measurement

Channel Bandwidth	6 MHz and 8 MHz
Amplitude Range	-40 dBmV to +50 dBmV
Modulation Types (Analog)	NTSC, PAL B/D/G/H/I/K/N and SECAM B/D/G/H/I/K
Modulation Types (Digital)	16/32/64/128/256 QAM Annex A, 64/256 QAM Annex B/C, OFDM 4K/8K OFDM: DOCSIS 3.1 option equipped meters only
Analog Measurement Accuracy	±0.75 dB @ 77° F (25° C); ±2.0 dB from 0° to +50° C (32° to 122° F)
Digital Measurement Accuracy	±0.75 dB @ 77° F (25° C); ±2.5 dB from 0° to +50° C (32° to 122° F)
Display Resolution	0.1 dB

Spectrum Measurement

Frequency Range	Return Path: 4 to 205 MHz; Forward Path: 5 to 1250 MHz
Dual Return Path Diplexers	42 MHz: 4 to 42 MHz; 85 MHz: 4 to 85 MHz
Manually Adjustable Resolution Bandwidth	Return Path: 300 kHz; Forward Path: 10, 30, 100, and 300 kHz; 1 and 3 MHz
Auto Ranging Resolution Bandwidth	10 kHz: Span ≤ 3.5 MHz; 30 kHz: Span ≤ 12.0 MHz; 100 kHz: Span ≤ 35.9 MHz; 300 kHz: Span ≤ 300 MHz; 1 MHz: Span ≤ 359.2 MHz; 3 MHz: Span ≥ 359.3 MHz
Display Spans	Return Path: 4 to 42 MHz, 4 to 65 MHz, 4 to 85 MHz or 4 to 205 MHz; Forward Path: User-selectable in 1 kHz steps
Display Scale	1, 2, 5, 7.5 or 10 dB/division
Display Range	8 vertical divisions when marker bar is hidden
Spurious Free Dynamic Range	60 dB @ 25° C (77° F) (+50 dBmV)
Sensitivity (terminated)	Return Path: -40 dBmV (4 to 205 MHz); Forward Path: -40 dBmV (5 to 1250 MHz)

Digital Channel Measurement

Deep Interleave Compatibility	Yes
Downstream MER	40 ±2 dB @ +6 dBmV RF Input Level; 34 ±2 dB @ -6 dBmV RF Input Level
Downstream BER Method	True BER, derived from code words not from MER
Downstream BER Standard	ITU J.83 annex A, B, C
Downstream BER Range	1 E-7 to 1 E-9 @ -6 dBmV RF Input Level
Symbol Rates	≥ 2 MSPS; ≤ 6.952 MSPS

Cable Modem Measurement

Protocol Support	DOCSIS 1.1 / 2.0 / 3.0 / 3.1; SNMP V1, V2c, V3 DOCSIS 3.1: DOCSIS 3.1 option equipped meters only
Compliance Certificates	FCC
CM Diplexer	85 MHz: 5 to 85 MHz
Receiver Frequency (edge to edge)	108 to 1218 MHz
Receiver Channel Bandwidth	6 MHz
Receiver Signal Level	-15 to 15 dBmV
DOCSIS 3.0 Demodulation	64 QAM, 256 QAM
DOCSIS 3.0 Downstream Data Rate	Up to 1.2 Gbps with 32 downstream channel bonding (DOCSIS 32x8)
DOCSIS 3.1 Demodulation	Multi-Carrier OFDM 16 to 4096 QAM DOCSIS 3.1 option equipped meters only
DOCSIS 3.1 Downstream Data Rate	Up to 2.5 Gbps with 2 OFDM 196 MHz Downstream Channels DOCSIS 3.1 option equipped meters only
Transmitter Frequency (edge to edge)	5 to 85 MHz
Transmitter Signal Level	Controlled by CMTS though power ranging function
DOCSIS 3.0 Modulation	QPSK, 8 QAM, 16 QAM, 32 QAM, 64 QAM, and 128 QAM (SCDMA only)
DOCSIS 3.0 Upstream Data Rate	Up to 320 Mbps with 8 upstream channels bonding
DOCSIS 3.1 Modulation	Multi-Carrier OFDMA BPSK to 4096 QAM DOCSIS 3.1 option equipped meters only
DOCSIS 3.1 Upstream Data Rate	Up to 1 Gbps with 2 OFDMA 96 MHz Upstream Channels DOCSIS 3.1 option equipped meters only

Carrier-to-Noise Measurement

Minimum Input Level for Full Range	+10 dBmV In-service, non-scrambled standard channels only
Dynamic Range	50 dB
Resolution	< 0.5 dB

Tilt Measurement

Max Number of Carriers	14 dependent on favorite channel setup
High/Low Delta Resolution	0.1 dB
Scan	Video, audio, pilot, and digital carriers

Analog and Digital Hum

Minimum Input Level	0 dBmV In-service, non-scrambled standard channels only
Range	0 to 5%
Resolution	0.10%
Accuracy	±0.5%

Frequency Domain Reflectometer

Velocity of Propagation	Adjustable from 60.0 to 99.0% in 0.1% increments
Working Distance	Minimum: 755 feet (230 meters) @ VoP of 60.0%; Maximum: 1247 feet (380 meters) @ VoP of 99.0%
Amplitude Range	0 to -80 dBRL
Distance Accuracy	5 feet

Source Generator

Modulation	CW, 16 QAM, 32 QAM, 64 QAM, 128 QAM, 256 QAM, OFDM (4K/8K) OFDM: DOCSIS 3.1 option equipped meters only
OFDM Subcarrier Modulation	16 to 4096 QAM, PLC Configurable DOCSIS 3.1 option equipped meters only
Frequency Range	5 to 85 MHz
Source Width	CW: 50 kHz; QAM: 6 MHz; OFDM: 6 to 24 MHz OFDM: DOCSIS 3.1 option equipped meters only
Amplitude	CW: Adjustable from 10 to 55 dBmV; QAM: Adjustable from 10 to 45 dBmV; OFDM: Adjustable from 10 to 40 dBmV OFDM: DOCSIS 3.1 option equipped meters only
QAM Symbol Rates	0.64, 1.28, 2.56, 5.12 MSPS
QAM Error Rates	BER: Adjustable from 0 to 1.00E-2; MER: > 38 dB
CW Source Accuracy	±2 dB

Physical

Construction	Rubber overmolded plastic housing
Control	Glow in the dark keypad and LCD touchscreen and/or via a wireless connection to a mobile device such as a laptop, tablet, iPad® or iPhone®, or Android® handset
Display	Color LCD touchscreen, 800 x 480 pixels (approx 4.5” x 2.75”)
Annunciators	Audible annunciator for key strokes
Antenna	Internal WiFi antenna, 2 dB gain
Flashlight	High-intensity LED (0.25W)
Dimensions w/o Case (H x W x D)	8.6 x 6.1 x 2.00 in (21.84 x 15.94 x 5.08 cm)
Dimensions w/ Case (H x W x D)	9.6 x 7.1 x 3.00 in (24.38 x 18.03 x 7.62 cm)
Weight w/o Case	3.75 lbs (1.70 Kg)
Weight w/ Case	4.75 lbs (2.15 Kg)

Interfaces

Tx Test Port	75 Ohm Replaceable F-Type Connector Source Generator Output Transmission Only
Tx/Rx Test Port	75 Ohm Replaceable F-Type Connector Upstream and Downstream RF Measurements; DOCSIS 3.1 Modem
Ethernet	RJ45 Management Port (10/100 Mbps); RJ45 Electrical Test Port (10/100/1000 Base-T); SFP Optical Test Port (100/1000 Base-X)
WiFi	802.11 b/g/n 2.4/5 GHz WiFi Adapter
USB	USB 2.0 Type-A Standard Port

Battery and Power

Operating Time	12 hours plus, dependent on use
Charge Time	4 hours
Battery	Three 2600 mAh @ 7.4V Li-Ion internal batteries, factory replaceable
Power Adapter	Input: 100 to 240 VAC ~ 50 to 60 Hz, 1.2A Max; Output: 15 VDC, 3.34A

Environmental

Storage	-18° to +50° C (0° to 122° F)
Operating Temperature	0° to +50° C (32° to 122° F)

Ordering

Part Number	TRI-DSP-1G-D31-SWPLS Plant Maintenance Meter with Sweepless Sweep

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

Cable plant maintenance
Upstream return path alignment and balancing
Forward path amplifier tilt and gain setting
Return spectrum analysis
Level, C/N, QAM and OFDM measurement
Channel plan scan with tilt measurement
DOCSIS 3.1 cable modem service testing
Ethernet SLA and QoS verification
Ingress troubleshooting
Home leakage testing

Options & Accessories

Option	Description
TRI-DSP-SW-HL-LKG-OPT	DSP Meter Leakage Software Option
TRI-LKG-HL-METER-KIT	Seeker Home Leakage Companion Kit — Seeker HL Source Transmitter, Dual-Band Antenna, Near-Field Probe and Case
TRI-ACCY-RF-TEST-CBL	I/O-15 Precision test cable
TRI-ISTOP-1000MHZ	I-Stop 1 GHz Test Probe — Ingress troubleshooting probe
TRI-ISTOP-1250MHZ	I-Stop Test Probe — Ingress troubleshooting probe
TRI-TLB-46-LPF	TLB-46 Return measurement low-pass filter
MP-80A	USB Optical Power Meter
FBP-P5000i	P5000i USB Fiber Scope
TRI-DSP-1G-CASE-REPL	Replacement fitted case
TRI-DSP-STRAP-REPL	Replacement shoulder strap
TRI-DSP-PWR-ADPT-NEW	Replacement charger (no power cord)