HSV
HSV-630 OTDR | 1310/1550nm 37/35dB, 0.8m Dead Zone, 400km, 256K Points, 7-Inch Touchscreen
HSV-630 OTDR | 1310/1550nm 37/35dB, 0.8m Dead Zone, 400km, 256K Points, 7-Inch Touchscreen
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HSV-630 OTDR – High-Performance 1310/1550nm OTDR with 37dB Dynamic Range & 0.8m Dead Zone
The HSV-630 is a professional-grade handheld OTDR delivering top-tier optical performance in a compact, tablet-inspired 7-inch touchscreen design. With a 37/35dB dynamic range at 1310/1550nm, an industry-leading 0.8m event dead zone, and a 400km distance range, the HSV-630 is built for engineers who need high-accuracy fiber characterization across FTTH, metro, and long-haul networks — without the bulk of traditional bench-top instruments. Its 256,000 sampling points, 8GB internal storage for 80,000 traces, and 12-hour battery life make it one of the most capable handheld OTDRs in its class.
Need 1625nm live fiber testing? See the HSV-630A for 5-wavelength capability including live fiber testing at 1625nm.
Why Choose the HSV-630?
- 37/35dB Dynamic Range (1310/1550nm): High dynamic range for testing long-haul backbone fiber, high-loss networks, and complex multi-span links up to 400km
- 0.8m Event Dead Zone: Among the shortest event dead zones in handheld OTDRs — detects closely spaced connectors, splices, and events in dense central office and data center environments
- 5cm Minimum Distance Resolution: 0.05m sampling resolution for precise event location on short fiber spans and dense patch panels
- 256,000 Sampling Points: Maximum trace detail for comprehensive fiber characterization across the full 400km distance range
- 8GB Internal Storage (80,000 Traces): Massive onboard storage plus 8GB SD card slot — no mid-project offloading required
- 7-Inch Outdoor-Enhanced Touchscreen: 800×480 TFT display optimized for bright outdoor conditions with professional UI/UX design
- Built-in OPM, VFL & Light Source: Integrated optical power meter (850–1610nm, ±0.17dB), 10mW VFL (650nm), and stabilized light source (1310/1550nm, -4dBm)
- Optional 520X Fiber Inspection Probe: USB fiber inspection probe for connector end-face inspection directly from the OTDR
- 12-Hour Battery Life: 5300mAh lithium battery pack for a full day of uninterrupted field testing
- Multi-Language Support: Chinese, English, Spanish, Russian, Italian, Portuguese, and more
- 1-Year Warranty
Ideal Applications
- FTTH / FTTx fiber deployment and acceptance testing
- Metro and long-haul backbone fiber testing (up to 400km)
- Telecom network maintenance and fault location
- Enterprise and data center fiber infrastructure testing
- Dense central office environments requiring 0.8m dead zone precision
HSV-630 vs. HSV-630A – Which Model Is Right for You?
| Feature | HSV-630 | HSV-630A |
|---|---|---|
| Wavelengths | 1310 / 1550nm | 1310 / 1490 / 1550 / 1625 / 1650nm |
| Dynamic Range | 37 / 35dB | 37 / 35 / 35dB |
| Event Dead Zone | 0.8m | 0.8m |
| Live Fiber (1625nm) | No | Yes |
| Light Source | 1310 / 1550nm, -4dBm | 1310/1490/1550/1625/1650nm, -4dBm |
| Sampling Points | 256K | 256K |
| Storage | 8GB (80K traces) | 8GB (80K traces) |
| Battery | 12 hours | 12 hours |
| Best For | Standard 2-wavelength SM testing | Multi-wavelength + live fiber testing |
Full HSV Series Comparison
| Model | HSV-610 | HSV-620 | HSV-630 | HSV-630A | HSV-640 |
|---|---|---|---|---|---|
| Wavelengths | 1310/1550 | 1310/1550 | 1310/1550 | 1310/1490/1550/1625/1650 | 1310/1550 |
| Dynamic Range | 32/30dB | 35/33dB | 37/35dB | 37/35/35dB | 40/38dB |
| Event Dead Zone | 1.5m | 1m | 0.8m | 0.8m | 0.8m |
| Atten. Dead Zone | 6m | 5m | 4m | 4m | 4m |
| Sampling Points | 128K | 128K | 256K | 256K | 256K |
Technical Specifications
| Parameter | HSV-630 Specification |
|---|---|
| Wavelengths | 1310nm / 1550nm (±20nm accuracy) |
| Dynamic Range | 37dB (1310nm) / 35dB (1550nm) |
| Event Dead Zone | 0.8m |
| Attenuation Dead Zone | 4m |
| Distance Range | 100m, 400m, 1.5km, 3km, 6km, 12km, 25km, 50km, 100km, 200km, 400km |
| Pulse Width | 3ns, 5ns, 10ns, 20ns, 50ns, 100ns, 500ns, 1μs, 2μs, 5μs, 10μs, 20μs |
| Sampling Resolution | 0.05m |
| Sampling Points | 256,000 |
| Built-in OPM | Calibrated: 1310/1550nm | Working: 850/980/1300/1310/1490/1610nm | Range: -70 to +10dBm | Accuracy: ±0.17dB |
| Built-in VFL | 650nm ± 10nm, 10mW |
| Light Source | 1310 / 1550nm, -4dBm (stabilized) |
| Fiber Inspection Probe | 520X, USB 2.0 (optional) |
| Display | 7-inch outdoor-enhanced touchscreen, 800×480 TFT |
| Storage | 8GB internal (80,000 traces) + 8GB SD card (80,000 traces) |
| Interfaces | 2× USB 2.0 | RJ45 LAN 10/100 Mbit/s | Micro SD |
| Battery | 7.4V, 5300mAh (39.22Wh) | 12 hours continuous |
| Power Supply | AC 100–240V, 50–60Hz / DC 12V, 1.5A |
| Dimensions | 196 × 172 × 72mm |
| Weight | <1.5kg (with battery) |
| Operating Temperature | -10°C to +50°C |
| Languages | Chinese, English, Spanish, Russian, Italian, Portuguese (+ French, German, Korean, Arabic optional) |
| Warranty | 1 Year |
Frequently Asked Questions
Q: What is the difference between the HSV-630 and HSV-630A?
A: The HSV-630 tests at 1310nm and 1550nm only. The HSV-630A adds 1490nm, 1625nm, and 1650nm wavelengths, enabling live fiber testing at 1625nm without service interruption and network monitoring at 1650nm. Both share the same 37/35dB dynamic range, 0.8m event dead zone, 256K sampling points, and 8GB storage. Choose the HSV-630 for standard 2-wavelength SM testing; choose the HSV-630A when live fiber or multi-wavelength testing is required.
Q: What does the 0.8m event dead zone mean in practice?
A: The event dead zone is the minimum distance after a reflective event before the OTDR can detect another event. The HSV-630’s 0.8m EDZ enables detection of events as close as 0.8m apart — essential for testing dense patch panels, splice trays, and short fiber runs in central offices and data centers.
Q: What built-in test functions does the HSV-630 include?
A: The HSV-630 includes a built-in optical power meter (OPM), 10mW visual fault locator (VFL), and stabilized light source (1310/1550nm) as standard features. An optional 520X USB fiber inspection probe is also available.
Q: How much data can the HSV-630 store?
A: The HSV-630 has 8GB internal memory storing up to 80,000 OTDR traces, plus an 8GB SD card slot for an additional 80,000 traces — 160,000 traces total without any offloading.
Q: What warranty does the HSV-630 come with?
A: The HSV-630 comes with a 1-year manufacturer warranty. For support or bulk pricing, contact us at info@splicermarket.com.

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