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

DOCSIS 3.1 plant maintenance meter with step-type TDR and forward/reverse sweepless sweep using the internal cable modem.

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 1G DSP SWEEPLESS with TDR (part number TRI-DSP-1G-D31-TDR-SWPLS) is a member of the VIAVI Trilithic DSP Series of DOCSIS 3.1 meters. It is a plant maintenance meter that adds a time domain reflectometer (TDR) and forward/reverse sweepless sweep to the 1G DSP platform, which combines CATV, DOCSIS 3.1 cable modem, Gigabit Ethernet and optical testing in one instrument.

Sweepless sweep

The Cable Modem (CM) Sweep feature 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 to talk back to the CMTS and uses the pre-equalized data for each carrier to plot an upstream frequency response. No headend sweep gear is required; the feature works with any DOCSIS 3.0 or DOCSIS 3.1 compatible CMTS with pre-EQ enabled. With OFDMA, the internal DOCSIS 3.1 modem tests the entire return band, including close to the diplexer. The Forward Passive Sweep feature uses the live carriers in the HFC distribution system to test and set the tilt and gain of distribution amplifiers without dedicated headend equipment.

TDR

The step-type TDR has a measurement range of over 4000 meters with zero dead zone and an accuracy of less than one foot. It is used to 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.

Ethernet and connectivity

The meter performs throughput testing at up to a gigabit per second using a dedicated Ethernet test port or the internal cable modem, with roundtrip or one-way KPI measurements and constant payload testing for Layer 2 through Layer 4 to verify Ethernet SLA and QoS metrics. It has a large color touchscreen, pass/fail indicators, autotest apps, remote control via a web browser and a glow in the dark keypad. Test data can be synchronised with StrataSync over Ethernet, DOCSIS or WiFi.

Key Features

Combines CATV, DOCSIS 3.1 cable modem, Gigabit Ethernet and optical testing in one meter
Step-type TDR with measurement range of over 4000 meters and zero dead zone
TDR distance 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
Cable Modem Sweep using the built-in cable modem for in-band upstream sweeps
Injects up to eight upstream modem carriers and plots frequency response from pre-equalized data
Works with any DOCSIS 3.0 or DOCSIS 3.1 compatible CMTS with pre-EQ enabled
Cable Modem Sweep with OFDMA tests the entire return band including close to the diplexer
Forward Passive Sweep uses live HFC carriers to set amplifier tilt and gain without headend gear
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
SFP optical power measurement with link speed, wavelength, Tx and Rx power
Internal DOCSIS 3.1 modem operating in DOCSIS 3.0 (32x8) and DOCSIS 3.1 modes
Upstream Traffic Control Plus, upstream linear distortion and QAM Error Vector Spectrum measurements
Dual RF test ports and source generator for RF loopback testing
Frequency domain reflectometer for distance to cable faults
Built-in 802.11 b/g/n 2.4/5 GHz WiFi adapter with survey test mode
1.25 GHz frequency range
Auto-discovery of channel plans
Up to 5 technician user profiles
Remote access and control via PC, smart phone or tablet
Glow in the dark keypad and high-intensity LED flashlight
StrataSync asset, configuration and test data management

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
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 Measurement range of over 4000 meters with a zero dead zone

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)
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 value
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-TDR-SWPLS Plant Maintenance Meter with TDR and FWD/REV Sweepless Sweep

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

Applications

Cable plant maintenance
Return spectrum analysis (4 to 205 MHz)
Level, C/N; QAM and OFDM measurement
Complete channel plan scan with tilt measurement
Upstream return path sweep and balancing
Forward amplifier tilt and gain alignment
Coaxial cable fault location
Ethernet SLA and QoS verification
DOCSIS 3.1 cable modem service testing
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)