VIAVI Trilithic 180 DSP Advanced DOCSIS 3.1 Signal Level Meter with FDR and Source Generator

DOCSIS 3.1 cable installation and service meter that adds a frequency domain reflectometer and return-band source generator to the 180 DSP.

Part Number: TRI-DSP-180-ADV

Datasheet

Overview

The VIAVI Trilithic 180 DSP Advanced (part number TRI-DSP-180-ADV) is the 180 DSP installation and service meter with a Frequency Domain Reflectometer (FDR) and Source Generator added. It belongs to the DSP Series of DOCSIS 3.1 installation and service meters for cable service providers and contractors.

The meter has a compact rugged design and a color touchscreen user interface. It measures analog and QAM carrier power levels. For QAM carriers, including deep interleave, it displays Hum, Constellation, Equalizer Tap, MER and BER, so 64 and 256 QAM downstream channels can be checked for quality or used to locate impairments. For DOCSIS 3.1 deployments it measures OFDM average level, peak-to-valley and in-channel tilt. It also displays PLC constellation, level, pre/post BER, MER, decoder stress over time, and a summary for the default profile.

The channel plan scan shows the frequency response of the whole channel lineup, or of favorite channels, as a color-coded bar graph. It includes adjustable on-screen markers for tilt measurement. Return spectrum display from 4 to 205 MHz is standard and provides peak measurements, color-coded markers, delta measurements and adjustable detector modes for capturing bursty transient noise. Forward spectrum measurement covers 5 MHz to 1,250 MHz.

Advanced model additions

The FDR determines the distance to cable faults such as opens, shorts and splitters. It shows events on a distance-versus-amplitude display, with markers for distance and loss at each reflection. The Source Generator transmits CW, QAM or OFDM carriers within the 5 to 85 MHz return band, with user-adjustable bit error injection, for RF loopback testing between the Tx and Tx/Rx test ports.

Operation

The meter is designed for fast installation testing and troubleshooting, with simple pass/fail indicators, autotest apps, a quick charge time, a built-in LED flashlight and a glow-in-the-dark keypad. Test results and configurations can be managed through VIAVI StrataSync.

Key Features

DOCSIS 3.1 OFDM signal analysis: average level, peak-to-valley, in-channel tilt, PLC constellation, PLC level, pre/post BER, MER and decoder stress over time
QAM carrier measurements including deep interleave: Hum, Constellation, Equalizer Tap, MER and BER
Analysis of 64 and 256 QAM downstream channels
Analog NTSC/PAL video/audio level, Delta V/A and carrier-to-noise measurements
Channel plan scan with color-coded bar graph and adjustable tilt markers
Channel plan auto discovery
Return spectrum display from 4 to 205 MHz with peak, color-coded and delta markers
Forward spectrum measurement from 5 MHz to 1,250 MHz
Adjustable detector modes for capturing bursty transient noise
Frequency Domain Reflectometer for distance to cable faults
Source Generator with CW, QAM and OFDM carriers in the 5 to 85 MHz return band
Network test suite with Ping, VoIP, Throughput and Traceroute
Color touchscreen with pass/fail indicators and autotest apps
Built-in LED flashlight and glow in the dark keypad
Multi-user profiles, job management and remote access
Firmware updates through the web or via USB
StrataSync asset, configuration and test data management

Specifications

Ordering

Part Number	TRI-DSP-180-ADV Adds FDR and Source Generator

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
Frequency Range (Forward Path)	5 to 1250 MHz Forward spectrum analysis is optional on the 180 DSP-Lite
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

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 Datasheet spec heading names 360 DSP Advanced and Pro Models and 1G DSP; the feature matrix lists FDR on 180 DSP Advanced
Working Distance (Minimum)	755 feet (230 meters) @ VoP of 60.0%
Working Distance (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, 480 x 272 pixels (approx 4” x 2.25”) 180/360 models
Annunciators	Audible annunciator for key strokes
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)

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
Ethernet	RJ45 Management Port (10/100 Mbps)
USB	USB 2.0 Type-A Standard Port

Battery and Power

Charge Time	4 hours
Battery	Two 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)

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

Applications

Cable subscriber installation testing
Return spectrum analysis (4 to 205 MHz)
Level, C/N, QAM and OFDM measurement
Complete channel plan scan with tilt measurement
DOCSIS 3.1 deployment testing
Coaxial cable fault location
RF loopback testing of active and passive devices
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	MP-80A USB Optical Power Meter
FBP-P5000i	P5000i USB Fiber Scope
TRI-DSP-180-CASE-REPL	Replacement fitted case
TRI-DSP-STRAP-REPL	Replacement shoulder strap
TRI-DSP-PWR-ADPT-NEW	Replacement charger (no power cord)