Trilithic 1G DSP with TDR Plant Maintenance Meter

Handheld plant maintenance meter combining CATV, DOCSIS 3.1 cable modem and step-type coaxial cable TDR testing in one rugged instrument.

Type: Step-type TDR
Maximum Distance: 15954 ft (4862m)
Distance accuracy: <1 ft
Noise Filter / AVG: 1 to 100 samples

Datasheet

Overview

The VIAVI Trilithic 1G DSP with TDR is a handheld plant maintenance meter that combines CATV signal level and spectrum measurements, a DOCSIS 3.1 cable modem and a coaxial cable time domain reflectometer (TDR) in one instrument. It is intended for smaller cable systems and contractors where one technician may be responsible for maintaining and servicing the entire cable plant and needs DOCSIS 3.1 and 3.0 service tests together with physical and service layer measurements.

The meter covers a 1.25 GHz frequency range with analog, SC-QAM and OFDM channel measurements, full channel plan scan with tilt, return spectrum analysis from 4 to 205 MHz and forward spectrum analysis from 5 to 1250 MHz. The internal DOCSIS 3.1 modem operates in DOCSIS 3.0 (32x8) and 3.1 modes and supports throughput testing of up to a gigabit per second through a dedicated Ethernet test port or the cable modem. Upstream linear distortion, ingress-under-carrier, source generator, frequency domain reflectometer and optional sweep functions are also provided.

TDR

The built-in step-type TDR has a measurement range of over 4000 meters with zero dead zone and a distance accuracy of less than one foot at any cable length. No pulse width selection or gain adjustment is required before a measurement, and cable impedance matching is automatic. When a TDR test is needed, the technician switches to the TDR test mode on the meter instead of returning to the vehicle for a separate instrument. The TDR is used to locate poor splices, water intrusion, pinched or poor quality coax, impedance mismatches and bridged taps, to determine how much cable remains on a reel, and to qualify new hardline extensions and drop replacements.

Operation and StrataSync

The 1G DSP has a large color touchscreen with pass/fail indicators and autotest apps, a glow in the dark keypad, an LED flashlight and remote control via a web browser. Up to five technicians can share one meter with separate profiles. Test results and configurations can be synchronized with the cloud-based StrataSync asset and data management service over Ethernet, DOCSIS or WiFi.

Key Features

Combines CATV, DOCSIS 3.1 cable modem and cable TDR testing in one rugged hand-held instrument
Step-type TDR with over 4000 meter measurement range, zero dead zone and distance accuracy of less than one foot
No pulse width selection or gain adjustment required before a TDR measurement
Automatic cable impedance match for TDR
Full complement of RF measurement functions for cable installers and field technicians
1.25 GHz frequency range
Return spectrum analysis from 4 to 205 MHz and forward spectrum analysis from 5 to 1250 MHz
Internal DOCSIS 3.1 modem operating in DOCSIS 3.0 (32x8) and DOCSIS 3.1 modes
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 Ethernet SLA and QoS verification
Channel plan scan with tilt measurement and channel plan auto discovery
Analog NTSC/PAL/SECAM, SC-QAM and OFDM channel measurements including MER, BER, constellation and equalizer
Upstream Traffic Control Plus, upstream linear distortion and QAM error vector spectrum analysis
Dual RF test ports with CW, QAM and OFDM source generator
Frequency domain reflectometer for distance to cable faults
Optional cable modem sweep, forward passive and active sweep, RSA, SSR and SST Compare sweep modes
Color touchscreen reduces entry errors and improves decision making
Multiple tests in a single autotest app to standardize technician processes
Remote control of the meter via a web browser
Multiple user profiles for up to 5 technicians
Built-in 802.11 b/g/n 2.4/5 GHz WiFi with survey test mode
Glow in the dark keypad and built-in LED flashlight
Long battery life with quick charge time
StrataSync cloud-based asset, configuration and test data management

Specifications

TDR

Type	Step-type TDR Zero dead zone
Maximum Distance	15954 ft (4862m)
Distance accuracy	<1 ft
Noise Filter / AVG	1 to 100 samples
Measurement time	<2 Seconds

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; 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; Standard: ITU J.83 annex A, B, C; 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: 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
Receiver DOCSIS 3.0 Demodulation	64 QAM, 256 QAM
Receiver DOCSIS 3.0 Data Rate	Up to 1.2 Gbps with 32 downstream channel bonding (DOCSIS 32x8)
Receiver DOCSIS 3.1 Demodulation	Multi-Carrier OFDM 16 to 4096 QAM DOCSIS 3.1 option equipped meters only
Receiver DOCSIS 3.1 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
Transmitter DOCSIS 3.0 Modulation	QPSK, 8 QAM, 16 QAM, 32 QAM, 64 QAM, and 128 QAM (SCDMA only)
Transmitter DOCSIS 3.0 Data Rate	Up to 320 Mbps with 8 upstream channels bonding
Transmitter DOCSIS 3.1 Modulation	Multi-Carrier OFDMA BPSK to 4096 QAM DOCSIS 3.1 option equipped meters only
Transmitter DOCSIS 3.1 Data Rate	Up to 1 Gbps with 2 OFDMA 96 MHz Upstream Channels DOCSIS 3.1 option equipped meters only

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 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
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

Optical Power Meter (optional)

Finish	UPC and APC Optional hardware package for 1G DSP
Additional Connectors	FC/SC/ST
Measurement Range	-50 dBm to +26 dBm
Display Resolution	0.01 dB
Tone Detection Range	-30 dBm to +6 dBm
Tone Detection	270 Hz, 330 Hz, 1 kHz, 2 kHz
Wavelengths	1310 nm, 1490 nm, 1550 nm
Accuracy	+/-0.5dB > -40 dBm @ 25º C; +/- 1dB < -40 dBm @ 25º C

Visual Fault Locator (optional)

Port Style	FC Style Adapter Optional hardware package for 1G DSP
Fiber Size	9/125 μm
Wavelength	650 nm
Output Power	3.0 mW
Pulse Duration	CW (always on) or 2 Hz (0.25 sec pulse)
Maximum Radiant Power	< 5.0 mW
Turn-On Safety Delay	2 seconds

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
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

HFC cable plant maintenance
Coaxial cable fault location with TDR
Locating poor splices, water intrusion and pinched coax
Impedance mismatch detection in network components
Determining cable length remaining on a reel
Qualifying new hardline extensions and drop cable replacements
DOCSIS 3.0 and 3.1 cable modem service testing
Return and forward spectrum analysis
Upstream and forward sweep
Gigabit Ethernet service testing
Home leakage testing
Fiber optical power measurement and inspection

Options & Accessories

Option	Description
TRI-DSP-1G-D31-TDR-PRO	1G DSP PRO with TDR — Plant Maintenance Meter with TDR
TRI-DSP-1G-D31-TDR-SWPLS	1G DSP SWEEPLESS with TDR — Plant Maintenance Meter with TDR and FWD/REV Sweepless Sweep
TRI-DSP-1G-D31-TDR-SWEEP	1G DSP SWEEP with TDR — Plant Maintenance Meter with TDR and FWD/REV Sweepless-Active Sweep
TRI-LKG-HL-METER-KIT	Home Leakage Test 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 1 GHz 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 — For 1G DSP
TRI-DSP-STRAP-REPL	Replacement shoulder strap
TRI-DSP-PWR-ADPT-NEW	Replacement charger — No power cord