Corelink 740B Multi-function OTDR 1310/1550nm
Product Overview
Description
Corelink 740B Multi-function OTDR is designed for fiber optic communication, network cabling, CCTV/IP camera installation and field maintenance.
The device combines multiple testing functions into one compact tester, including OTDR testing, optical power measurement, stable light source, red light source, Wi-Fi testing, Ethernet testing, cable tracing and IP camera testing.
The Corelink 740B supports 1310nm and 1550nm OTDR wavelengths with a 28/26dB dynamic range in the documented configuration. It can perform automatic OTDR testing, generate event maps, measure fiber length and loss, and help locate fiber connection and fusion points.
For network technicians, the device includes 1000M Ethernet testing, IP scanning, PING testing, RJ45 testing and network cable TDR testing up to 600 meters. It also provides cable-finding and sorting functions for network cabling work.
For CCTV/IP camera applications, Corelink 740B supports 4K H.265 camera testing, network camera inspection, PoE testing, DC power output and optional HDMI/VGA-related testing functions depending on configuration.
Key Features
- Brand: Corelink
- Model: 740B
- Multi-function OTDR
- OTDR wavelength: 1310/1550nm
- Dynamic range: 28/26dB
- OTDR testing up to 150 km according to the product material
- Automatic OTDR testing
- Event map
- Fiber length and loss measurement
- Optical Power Meter
- Stable Light Source
- Red Light Source / VFL
- Wi-Fi testing
- 4K H.265 IP camera testing
- 1000M Ethernet testing
- RJ45 cable testing
- Network cable TDR up to 600 meters
- Cable tracing and sorting
- PoE testing
- IP address scanning
- PING testing
- HDMI input support on applicable configuration
- VGA input support on applicable configuration
- DC 12V / DC 24V power output
- USB 5V 2A power output
- 5.4-inch IPS touchscreen
- 1920 × 1152 resolution
- 7.4V 5200mAh battery
- SOR, PDF and Excel report support
Technical Specifications
|
Category |
Specification |
Details |
|
OTDR |
Wavelength |
1310 / 1550 nm |
|
Dynamic Range |
28/26 |
|
|
Event Blind Spot |
≤ 2 m |
|
|
Attenuation Blind Spot |
≤ 10 m |
|
|
Measurement Range |
0.5 / 1 / 2 / 5 / 10 / 25 / 50 / 100 / 200 / 240 km |
|
|
Pulse Width |
5 ns – 20,000 ns |
|
|
Test Accuracy |
±(1 m + Sampling Interval + 0.005% × Test Distance) |
|
|
Measurement Duration |
5 sec – 3 min / Real-time |
|
|
Linearity |
±0.05 dB/dB |
|
|
Minimum Distance Resolution |
0.05 m |
|
|
Sampling Points |
32K – 128K |
|
|
Loss Threshold |
0.05 dB |
|
|
Loss Resolution |
0.01 dB |
|
|
File Format |
SOR / PDF / EXCEL |
|
|
Storage |
8GB + TF Card |
|
|
Interface |
SC-PC |
|
|
Display |
Screen |
5.4-inch IPS Capacitive Touchscreen |
|
Resolution |
1920 × 1152 |
|
|
Processor |
CPU |
Quad-Core High-Performance CPU |
|
Network |
Network Port |
10/100/1000M RJ45 |
|
Wi-Fi |
Built-in 2.4G Wi-Fi |
|
|
Wi-Fi Speed |
Up to 150 Mbps |
|
|
Optical Power Meter |
Wavelength |
850 / 1300 / 1310 / 1490 / 1550 / 1625 nm |
|
Power Range |
-70 ~ +10 dBm |
|
|
Stable Light Source |
Laser Type |
FP-LD |
|
Output Wavelength |
1310 / 1550 / 1610 nm |
|
|
Output Power |
-5 dBm ~ 0 dBm Adjustable |
|
|
Frequency |
270Hz / 330Hz / 1kHz / 2kHz |
|
|
Stability |
CW, 0.2 dB/15 min |
|
|
Red Light Source |
Function |
Fiber breakage, cracking & bending detection |
|
CCTV Testing |
H.265 Decoding |
Supports 4K / up to 12MP cameras |
|
IP Camera |
IP Camera Testing & IP Search |
|
|
Protocol |
ONVIF / PTZ Control |
|
|
Video Testing |
TVI / CVI / AHD / CVBS |
|
|
HDMI |
HDMI Input |
Up to 4K @ 30fps |
|
VGA |
VGA Input |
Up to 1280 × 1024 @ 60fps |
|
Network Cable |
TDR Testing |
Up to 600 m |
|
Cable Testing |
UTP / Shielded Cable |
|
|
Cable Finder |
Cable Finding & Sorting |
|
|
PoE |
PoE Output |
48V / Max. 30W |
|
DC Output |
DC 12V |
Max. approx. 3A |
|
DC 24V |
Max. approx. 2A |
|
|
USB |
USB Output |
5V / 2A |
|
PTZ Control |
RS485 |
600–115200 bps |
|
Protocols |
Pelco-D/P, Samsung, Panasonic, Candle, Yaan |
|
|
Seeker |
Voltage Range |
AC 12–1000V |
|
Frequency |
50/60Hz |
|
|
Safety Level |
CAT III 1000V / CAT IV 600V |
|
|
Battery |
Battery Type |
7.4V Polymer Lithium |
|
Capacity |
5200mAh |
|
|
Charging Time |
Approx. 2.5 hours |
|
|
Working Time |
Up to 11 hours |
|
|
System |
Storage |
8GB + TF Card |
|
Language |
Multi-language OSD |
|
|
Environment |
Operating Temperature |
-10°C ~ +50°C |
|
Operating Humidity |
30%–90% |
|
|
Physical |
Dimensions |
203 × 141 × 46 mm |
|
Weight |
0.92 kg |
*Some functions/configurations are optional according to the datasheet.
Main Applications
Fiber Optic Testing
- OTDR testing
- Fiber length measurement
- Fiber loss measurement
- Fusion point identification
- Connection point detection
- Event map analysis
- Fiber maintenance and troubleshooting
Network Testing
- RJ45 cable testing
- Network cable TDR
- Cable length testing
- Cable tracing
- Cable sorting
- IP scanning
- PING testing
- Switch/network troubleshooting
CCTV & IP Camera Testing
- IP camera testing
- 4K H.265 camera testing
- PoE testing
- Camera power testing
- Network camera inspection
- PTZ testing on supported configuration
Corelink 740B Multi-function OTDR is a professional fiber optic and network testing device designed for fiber installation, maintenance and troubleshooting. It supports 1310/1550nm OTDR testing with 28/26dB dynamic range and combines OTDR, optical power meter, stable light source, red light source, Wi-Fi testing, Ethernet testing, RJ45 cable testing, network cable TDR, PoE testing and IP camera testing in one device. The Corelink 740B also supports 4K H.265 network camera testing and network troubleshooting functions, making it suitable for fiber optic, telecom, networking and CCTV technicians.
FAQs
What is Corelink 740B?
Corelink 740B is a multi-function OTDR designed for fiber optic, network, cable
and IP camera testing.
What OTDR wavelengths does
Corelink 740B support?
The documented configuration supports 1310nm and 1550nm OTDR
wavelengths.
What is the dynamic range of
Corelink 740B?
The documented
1310/1550nm configuration has a 28/26dB dynamic range.
Can Corelink 740B test
network cables?
Yes. It
supports RJ45 testing and network cable TDR testing up to 600 meters.
Can Corelink 740B test IP
cameras?
Yes. It
supports network/IP camera testing and 4K H.265 camera testing.
Does Corelink 740B have an
optical power meter?
Yes. Optical
power measurement is integrated into the multifunction tester.
Does it support PoE testing?
Yes. The device
supports PoE power and protocol testing functions.
Can test reports be saved?
Yes. The
datasheet lists SOR, PDF and Excel-related data/report functionality.
The documented standard battery is 7.4V 5200mAh, with an optional 7800mAh battery mentioned in the datasheet.
Other CoreLink Products
Price in Bangladesh – 2026
The latest price of Corelink 740B Multi-function OTDR 1310/1550nm in Bangladesh is ৳78,000 only. Buy Corelink 740B Multi-function OTDR 1310/1550nm from Dhaka at the best price in Workstation Communication.
Available at Workstation Communication – your trusted source for Network Testing Tools and OTDR.
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Corelink 740B Multi-function OTDR 1310/1550nm Price in Bangladesh 2026 | Best Price for OTDR by CoreLink | Workstation Communication
Looking for the best price for the Corelink 740B Multi-function OTDR 1310/1550nm in Bangladesh? Get the Corelink 740B Multi-function OTDR 1310/1550nm for just ৳78,000 at Workstation Communication. Designed for Network Testing Tools and OTDR, it ensures precise results at every time.
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