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

DOCSIS 3.1 plant maintenance meter with step-type TDR, forward/return sweepless and active sweep, cable modem and Gigabit Ethernet testing.

Part Number: TRI-DSP-1G-D31-TDR-SWEEP

Datasheet

Overview

The VIAVI Trilithic 1G DSP SWEEP with TDR (part number TRI-DSP-1G-D31-TDR-SWEEP) is the plant maintenance model of the DSP Series Meters. It is described by the manufacturer as a plant maintenance meter with TDR and FWD/REV sweepless-active sweep. It combines CATV signal measurements, a DOCSIS 3.1 cable modem, Gigabit Ethernet testing and coaxial cable fault location in one handheld instrument.

Sweep

The meter supports both sweepless and active sweep methods. Cable modem sweep uses the internal modem to run in-band return sweeps within the modem carriers, and forward passive sweep uses the live carriers in the HFC distribution system to set amplifier tilt and gain without dedicated headend gear. With headend equipment, the meter can run RSA high-resolution return sweep with the 8310 RSA, forward active sweep with the 8300 FST, and SSR high-speed return sweep and SST Compare with the 9581 SST.

TDR

The built-in step-type TDR locates impairments in coaxial cable such as poor splices, water intrusion, pinched coax, impedance mismatches and bridged taps. It can also measure how much cable is left on a reel. Because it uses a step waveform, it has no dead zone, does not require a pulse width or gain setting, and matches cable impedance automatically.

Ethernet and Connectivity

The 1G DSP can run throughput tests at up to a gigabit per second through a dedicated Ethernet test port or the internal cable modem. It supports roundtrip or one-way Layer 2 through Layer 4 constant payload testing to verify Ethernet SLA and QoS metrics. It can connect over Ethernet, WiFi, GigE or cable modem, can be controlled remotely through a web browser, and syncs test results and configurations with StrataSync.

The instrument has an 800 x 480 color touchscreen, pass/fail indicators, autotest apps, a glow-in-the-dark keypad, and support for up to five user profiles.

Key Features

Step-type TDR with over 4000 meters measurement range, zero dead zone and better than one foot accuracy
Cable Modem Sweep using the internal DOCSIS 3.1 modem, with no headend sweep gear required
Forward Passive Sweep using live HFC carriers
Forward Active Sweep with the 8300 FST Forward SpeedSweep Transmitter
RSA High-Resolution Return Sweep with the 8310 RSA, tracking up to 643 sweep points
SSR High-Speed Return Sweep and SST Compare with the 9581 SST
Internal DOCSIS 3.1 cable modem operating in DOCSIS 3.0 (32x8) and DOCSIS 3.1 modes
Gigabit throughput testing through a dedicated Ethernet test port or the internal cable modem
Roundtrip or one-way Layer 2-4 constant payload testing for Ethernet SLA and QoS verification
SFP optical power measurement with link speed, wavelength, Tx and Rx power
Upstream Traffic Control Plus real-time ingress view with heat map
Downstream QAM Error Vector Spectrum for ingress under carrier
Upstream linear distortion testing: equalizer taps, group delay and in-channel response
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
DOCSIS 3.1 OFDM measurements including PLC constellation, MER and decoder stress
Forward spectrum 5 to 1250 MHz and return spectrum 4 to 205 MHz
Built-in 802.11 b/g/n 2.4/5 GHz WiFi with survey mode
Channel plan auto discovery, channel plan scan and tilt measurement
Remote control of the meter via a web browser
Up to 5 user profiles on one meter
StrataSync asset, configuration and test data management
Large 800 x 480 pixel color touchscreen and glow in the dark keypad

Specifications

Ordering

Part Number	TRI-DSP-1G-D31-TDR-SWEEP Plant Maintenance Meter with TDR and FWD/REV Sweepless-Active Sweep

TDR

Maximum Distance	15954 ft (4862m)
Distance accuracy	<1 ft
Noise Filter / AVG	1 to 100 samples
Measurement time	<2 Seconds
TDR type	Step-type, zero dead zone Measurement range of over 4000 meters; accuracy of less than one foot for cables at any length

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 on 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
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, 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 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

Sweep

RSA Sweep sweep points	up to 643 individual sweep points Full sweep displayed every four seconds; requires 8310 RSA Return SpeedSweep Analyzer in the headend
Cable Modem Sweep injected carriers	up to eight (8) upstream modem carriers Works with any DOCSIS 3.0 or DOCSIS 3.1 compatible CMTS with pre-EQ enabled
SSR Sweep test carriers	up to eight user-selectable test carriers Measured by the 9581 SST in the headend

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 1G DSP	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 1G DSP	3.75 lbs (1.70 Kg)
Weight w/ Case 1G DSP	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 1G DSP	12 hours plus, dependent on use
Charge Time	4 hours
Battery 1G DSP	Three 2600 mAh @ 7.4V Li-Ion internal batteries, factory replaceable 1G DSP
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
Forward and return path sweep and balancing
Coaxial cable fault location
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
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)