VIAVI Trilithic 1G DSP PRO with TDR DOCSIS 3.1 Plant Maintenance Meter

DOCSIS 3.1 plant maintenance meter combining CATV, cable modem, Gigabit Ethernet testing and a built-in step-type TDR.

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; Digital: 16/32/64/128/256 QAM Annex A, 64/256 QAM Annex B/C, OFDM 4K/8K
Analog Measurement Accuracy: ±0.75 dB @ 77° F (25° C); ±2.0 dB from 0° to +50° C (32° to 122° F)

Datasheet

Overview

The VIAVI Trilithic 1G DSP PRO with TDR (part number TRI-DSP-1G-D31-TDR-PRO) is the plant maintenance meter of the DSP Series fitted with a time domain reflectometer. The 1G DSP combines CATV, DOCSIS 3.1 cable modem, Gigabit Ethernet and optical testing in one instrument intended for systemwide testing by maintenance technicians.

The meter provides throughput testing at 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, supporting verification of Ethernet Service Level Agreement (SLA) and Quality of Service (QoS) metrics.

TDR

The step-type TDR allows a technician to switch to an alternate test mode on the meter instead of using a separate application-specific instrument. It has a measurement range of over 4000 meters with a zero dead zone and is used to identify and locate impairments in coaxial cable such as poor splices, water intrusion, pinched coax, impedance mismatches and bridged taps, or to determine how much cable is left on a reel. No pulse width selection or gain adjustment is required, and cable impedance matching is automatic.

Operation and connectivity

The 1G DSP has a large, high-resolution color touchscreen, pass/fail indicators and autotest apps, remote meter control via a web browser, and a glow in the dark keypad. Test results and instrument configurations can be synchronized with VIAVI StrataSync over Ethernet, DOCSIS or WiFi.

Key Features

Combines CATV, DOCSIS 3.1 cable modem, Gigabit Ethernet and optical testing in one instrument
Step-type TDR with measurement range of over 4000 meters and zero dead zone
TDR accuracy of less than one foot for cables at any length
No pulse width selection or gain adjustment required for TDR measurements
Automatic cable impedance match
Throughput testing at up to a gigabit/sec via dedicated Ethernet test port or internal cable modem
Roundtrip or one-way KPI measurements with constant payload testing for Layer 2 through Layer 4
Internal DOCSIS 3.1 modem operating in DOCSIS 3.0 (32x8) and DOCSIS 3.1 modes
Upstream Traffic Control Plus ingress analysis
Upstream linear distortion measurements: equalizer taps, group delay and in-channel response
Downstream QAM Error Vector Spectrum analysis
Frequency domain reflectometer and source generator with dual RF test ports
Return spectrum from 4 to 205 MHz and forward spectrum from 5 to 1250 MHz
Channel plan auto discovery, channel plan scan and tilt measurement
Built-in 802.11 b/g/n 2.4/5 GHz WiFi with survey test mode
Large color touchscreen with pass/fail indicators and autotest apps
Remote meter control via a web browser
Multiple user profiles for up to 5 technicians
StrataSync synchronization via Ethernet, DOCSIS or WiFi
Glow in the dark keypad

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; 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
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 Downstream Data Rate	Up to 2.5 Gbps with 2 OFDM 196 MHz Downstream Channels
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 Upstream Data Rate	Up to 1 Gbps with 2 OFDMA 96 MHz Upstream Channels

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
Frequency Range	5 to 85 MHz
Source Width	CW: 50 kHz; QAM: 6 MHz; OFDM: 6 to 24 MHz
Amplitude	CW: Adjustable from 10 to 55 dBmV; QAM: Adjustable from 10 to 45 dBmV; OFDM: Adjustable from 10 to 40 dBmV
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

TDR

Maximum Distance	15954 ft (4862m)
Distance accuracy	<1 ft
Noise Filter / AVG	1 to 100 samples
Measurement time	<2 Seconds
Type	Step-type TDR with zero dead zone Measurement range of over 4000 meters

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”) 1G DSP value
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) 1G DSP value
Weight w/ Case	4.75 lbs (2.15 Kg) 1G DSP value

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) Electrical and SFP test ports: 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 1G DSP value
Charge Time	4 hours
Battery	Three 2600 mAh @ 7.4V Li-Ion internal batteries, factory replaceable 1G DSP: three batteries; other models two
Power Adapter Input	100 to 240 VAC ~ 50 to 60 Hz, 1.2A Max
Power Adapter 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 Information

Part Number	TRI-DSP-1G-D31-TDR-PRO Plant Maintenance Meter with TDR

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

Applications

CATV plant maintenance
Coaxial cable fault location
DOCSIS 3.1 network troubleshooting
Return spectrum analysis
Level, C/N, QAM and OFDM measurement
Ethernet SLA and QoS verification
Upstream ingress troubleshooting
Home leakage testing

Options & Accessories

Option	Description
TRI-LKG-HL-METER-KIT	Seeker Home Leakage Companion Kit — Seeker HL Source Transmitter, Dual-Band Antenna, Near-Field Probe and Case
TRI-DSP-SW-HL-LKG-OPT	DSP Meter Leakage Software Option
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-1G-CASE-REPL	Replacement fitted case
TRI-DSP-STRAP-REPL	Replacement shoulder strap
TRI-DSP-PWR-ADPT-NEW	Replacement charger (no power cord)