VIAVI Trilithic 1G DSP Pro DOCSIS 3.1 Plant Maintenance Meter

DOCSIS 3.1 plant maintenance meter combining CATV, cable modem, gigabit Ethernet and optical testing with a 1.25 GHz frequency range.

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 Pro (part number TRI-DSP-1G-D31-PRO) is the plant maintenance meter of the DSP Series. It combines CATV measurements, a DOCSIS 3.1 cable modem, Gigabit Ethernet testing and optical testing in a single instrument for systemwide maintenance work on cable networks.

The meter provides troubleshooting tools for experienced technicians while simplifying decisions and standardising procedures for less experienced staff through pass/fail indicators and autotest apps. It uses a large, high-resolution color touchscreen, a glow-in-the-dark keypad and supports remote control of the meter via a web browser. A visual fault locator (VFL) is described for locating loss points in patch cords, patch panels and enclosures.

Ethernet and Cable Modem Testing

The 1G DSP can perform throughput testing at speeds of up to a gigabit/sec using a dedicated Ethernet test port or the internal cable modem. Roundtrip or one-way Key Parameter Index (KPI) measurements with constant payload testing for Layer 2 through Layer 4 support verification of Ethernet Service Level Agreement (SLA) and Quality of Service (QoS) metrics. The internal DOCSIS 3.1 modem operates in DOCSIS 3.0 (32x8) and DOCSIS 3.1 modes and reports upstream and downstream channel statistics, OFDM profile statistics and upstream linear distortion measurements.

RF Measurements

The meter measures analog, SC-QAM and OFDM carriers, performs channel plan scans with tilt measurement and channel plan auto discovery, and displays return spectrum from 4 to 205 MHz and forward spectrum from 5 to 1250 MHz. Ingress-under-carrier tools include Upstream Traffic Control Plus and downstream QAM Error Vector Spectrum. Dual RF test ports and a source generator allow RF loopback testing of active and passive devices.

StrataSync

DSP Series meters synchronise with StrataSync, a cloud-based solution that manages assets, configurations and test data, over Ethernet, DOCSIS or WiFi. The StrataSync workflow option allows work orders, test profiles and pass/fail thresholds to be deployed to the meter and results to be uploaded for management review.

Key Features

Combines CATV, DOCSIS 3.1 cable modem, Gigabit Ethernet and optical testing in one instrument
1.25 GHz frequency range
Throughput testing up to 1 GbE using a dedicated Ethernet test port or the internal cable modem
Roundtrip or one-way constant payload testing for Layer 2-4 for Ethernet SLA and QoS verification
SFP optical power measurement with link speed, wavelength, Tx power and Rx power
Internal DOCSIS 3.1 modem operating in DOCSIS 3.0 (32x8) and DOCSIS 3.1 modes
OFDM profile statistics, multiple profile selection and distributed MER
Upstream linear distortion testing: equalizer taps, group delay and in-channel response
Upstream Traffic Control Plus heat map for ingress under carrier
Downstream QAM Error Vector Spectrum display
Frequency domain reflectometer for distance to cable faults
Dual RF test ports and source generator for CW, QAM and OFDM carriers from 5 to 85 MHz
Return spectrum 4 to 205 MHz and forward spectrum 5 to 1250 MHz
Channel plan scan, tilt measurement and channel plan auto discovery
Network test suite with Ping, VoIP, Throughput and Traceroute
Built-in 802.11 b/g/n 2.4/5 GHz WiFi adapter with WiFi survey mode
Multiple user profiles for up to 5 technicians
Remote access and control from a PC, smart phone or tablet
Large high-resolution color touchscreen with pass/fail indicators and autotest apps
Glow in the dark keypad
Firmware updates via the web or USB
StrataSync synchronisation 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
Frequency Range (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, Tilt and Hum

C/N Minimum Input Level for Full Range	+10 dBmV In-service, non-scrambled standard channels only
C/N Dynamic Range	50 dB
C/N Resolution	< 0.5 dB
Tilt Max Number of Carriers	14 dependent on favorite channel setup
Tilt High/Low Delta Resolution	0.1 dB
Tilt Scan	Video, audio, pilot, and digital carriers
Hum Minimum Input Level	0 dBmV In-service, non-scrambled standard channels only
Hum Range	0 to 5%
Hum Resolution	0.10%
Hum 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

Ethernet Service Testing

Throughput Testing Speed	up to 1 GbE using a dedicated test port
Test Modes	Roundtrip or one-way constant payload testing for Layer 2-4

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, 1G: 800 x 480 pixels (approx 4.5” x 2.75”)
Annunciators	Audible annunciator for key strokes
Antenna	Internal WiFi antenna, 2 dB gain
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 Management Port	RJ45 Management Port (10/100 Mbps)
Ethernet Electrical Test Port	RJ45 Electrical Test Port (10/100/1000 Base-T) 1G only
SFP Optical Test Port	SFP Optical Test Port (100/1000 Base-X) 1G only
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	Two 2600 mAh @ 7.4V Li-Ion internal batteries, factory replaceable (1G DSP, Three 2600 mAh batteries)
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 plant maintenance
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
Upstream ingress troubleshooting
Coaxial cable fault location
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)