VIAVI Trilithic 1G DSP Sweep Plant Maintenance Meter with Active Sweep

DOCSIS 3.1 plant maintenance meter combining CATV, cable modem, Gigabit Ethernet testing and active forward and return sweep.

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 Sweep (part number TRI-DSP-1G-D31-SWEEP) is the active-sweep version of the 1G DSP plant maintenance meter in the DSP Series. It combines CATV measurements, a DOCSIS 3.1 cable modem, Gigabit Ethernet and network testing, and sweep functions in one handheld instrument for system-wide maintenance.

Sweep functions

The Sweep model adds RSA high-resolution return sweep, in which the meter acts as an upstream sweep transmitter working with the 8310 RSA Return SpeedSweep Analyzer in the headend. This is used to troubleshoot micro-reflections and narrow suck-outs while stepping around active channels. The model also supports Forward Active Sweep with the 8300 FST Forward SpeedSweep Transmitter for setting amplifier tilt and gain, SSR high-speed return sweep and SST Compare with the 9581 SST, and cable modem sweep with OFDMA using the internal DOCSIS 3.1 modem.

Cable modem and Ethernet testing

The 1G DSP reaches throughput test speeds of up to a gigabit per second through a dedicated Ethernet test port or the internal cable modem. It runs roundtrip or one-way KPI measurements with constant payload testing for Layer 2 through Layer 4, which supports verification of Ethernet SLA and QoS metrics. The internal modem also provides upstream and downstream channel statistics, OFDM profile analysis, upstream linear distortion measurements and ingress-under-carrier views.

Operation

The meter has a large, high-resolution color touchscreen, pass/fail indicators, autotest apps, remote control through a web browser, and a glow-in-the-dark keypad. Results can be synchronized with StrataSync over Ethernet, DOCSIS or WiFi. An optical power meter with visual fault locator, a TDR and home leakage testing are offered as options or as separate ordering variants.

Key Features

Combines CATV, DOCSIS 3.1 cable modem, Gigabit Ethernet and network testing in one meter
1.25 GHz frequency range
Auto-discovery of channel plans
RSA high-resolution return sweep with the 8310 RSA, tracking up to 643 sweep points
Forward Active Sweep with carriers injected by the 8300 FST headend transmitter
SSR high-speed return sweep and SST Compare with the 9581 SST
Cable modem sweep with OFDMA using the internal DOCSIS 3.1 cable modem
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 SLA and QoS verification
Dual RF test ports and source generator for RF loopback testing
Frequency domain reflectometer for distance to cable faults
Upstream Traffic Control Plus and downstream QAM Error Vector Spectrum ingress analysis
Upstream linear distortion measurements: equalizer taps, group delay, in-channel response
Built-in 802.11 b/g/n 2.4/5 GHz WiFi with survey mode
Large, high resolution color touchscreen with pass/fail indicators and autotest apps
Remote meter control via a web browser
Multi-user support for up to 5 technicians
StrataSync synchronization over 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
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)
OFDM Channel Spectrum	full 24 to 192 MHz OFDM channels Raw forward and return spectrum traces

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 Upstream 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 Upstream 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
Upstream SC-QAM Channels	up to eight (8)
Downstream Channels	up to 32 downstream SC-QAM channels (DOCSIS 3.0 only); up to two (2) downstream OFDM channels and 30 downstream SC-QAM channels (mixed DOCSIS 3.0 and DOCSIS 3.1) OFDM: DOCSIS 3.1 option equipped meters only
OFDM Multiple Profile Selection	up to four (4) Profiles 0-3 (A-D) 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%

Sweep

RSA High-Resolution Return Sweep	Tracks up to 643 individual sweep points and displays a full sweep on the screen every four seconds Works with the 8310 RSA Return SpeedSweep Analyzer in the headend
Forward Active Sweep	Uses carriers injected into non-active channel spaces by the 8300B FST Forward SpeedSweep Transmitter Feature matrix lists the companion transmitter as 8300A FST
SSR High-Speed Return Sweep	Injects up to eight user-selectable test carriers into the upstream Measured in the headend by the 9581 SST
SST Compare	Simultaneous display of locally measured return path spectrum and spectrum scanned from the headend by the 9581 SST
Cable Modem Sweep with OFDMA	Detailed return band sweep using only the internal DOCSIS 3.1 cable modem DOCSIS 3.1 option equipped meters only

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

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”)
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)
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	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
Charge Time	4 hours
Battery	Three 2600 mAh batteries Series datasheet: Two 2600 mAh @ 7.4V Li-Ion internal batteries, factory replaceable; 1G DSP uses three
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 Information

Part Number	TRI-DSP-1G-D31-SWEEP Plant Maintenance Meter with Active Sweep

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

Applications

HFC plant maintenance
Forward and return path sweep and alignment
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
Ingress troubleshooting
Cable fault location

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)