3G-SDI Fiber Optic Extender, 1x ST
Model No: DVI-7345
Ultra-compact extender supports SD-SDI, HD-SDI, 3G-SDI over one single-mode fiber up to 2 km (1.2 miles).
Key Features
- Supports SMPTE-424M (3G-SDI), SMPTE-292M (HD-SDI) and SMPTE-259M (SD-SDI)
- Supports data rates up to 2.97 Gbps
- Supports Single-Mode optical fiber distances up to 1.2 mi. (~ 2 km)
- Extended length 6.2 mi. (~ 10 km) option available
- Utilizes a single optical cable and a single optical wavelength
- Ultra-compact, rugged metal enclosure
- Locking BNC SDI and ST connectors
- ST connectors equipped with locking metal dust covers
- Wide operational temperature range: -40°C ~ 85°C
- Low RFI / EMI profile for sensitive applications
- Optical fiber transmission is immune to environmental signal noise
High Performance — The DVI-7345 is an ultra-compact, high performance fiber optic extender that supports SDI, HD-SDI and 3G-SDI extension over a single strand of Single-Mode optical fiber at distances up to 1.2 miles (~ 2000 meters). The extender set consists of an optical transmitter module that converts the SDI signals into light pulses for transmission over a single strand of Single-Mode optical fiber cable. An optical receiver module converts the light pulses back to an SDI signal for downstream processing or display on a monitor.
Superior Design — The transmitter includes an SDI signal EQ, a Laser driver and a laser diode module that uses a single optical wavelength of 1310nm. The receiver includes an SDI copper cable driver, a photo diode, a transimpedance amplifier (TIA), as well as a limiting amplifier. Both Tx and Rx use low-profile, metal cases equipped with rugged locking 75 ohms BNC SDI connectors. The locking ST fiber connectors are supplied with twist-locking metal covers to prevent dust buildup inside the fiber optic connectors. These features make the DVI-7345 the perfect solution for extension of SDI, HD-SDI, and 3G-SDI signals over extreme distances in even the most demanding broadcast, studio, and live environments.
| Performance | |
| Compliance | SMPTE-424M (3G-SDI) SMPTE-292M (HD-SDI) SMPTE-259M (SD-SDI) SMPTE-297-2006 (optical-to-electrical interfaces) DVB-ASI specifications |
| Maximum Pixel Clock Frequency | 297 MHz |
| Maximum Video Bit Rate | 2.97 Gbps (3G-SDI) |
| Supported Color Depth | 12-bit |
| Input Impedance | 75 ohms |
| Signal Level | 800mVpp ± 50mV |
| Supported Video Formats | 480i, 480p, 576i, 576p, 720/30p, 720/60p, 1080i, 1080/30p, 1080/60p |
| Digital Audio Support | HD and SD = 16 channels of embedded 48 kHz, 24-bit audio channels 3G = 32 Channels of embedded 48 kHz, 24-bit audio channels |
| Connections | |
| SDI Input / SDI Output | 1x BNC Coaxial Male Connector |
| Optical Input / SDI Output | 1x ST optical connector with detachable dust cover |
| Power Inputs | 1x 6" pigtail with Female USB Micro-B connector |
| Optical | |
| Optical Technology | 1x Discrete Optical Channel |
| Optical Wavelength | 1310 nm |
| Optical Transmitter | Tx Module: 1310 nm FP Laser, Class 1 Laser Product |
| Optical Receiver | Rx Module: 1x GaAs PIN Photo Diode |
| Optical Transmitter Output Power | -6 dBm (minimum) / -1 dBm (maximum) |
| Optical Transmitter Extinction Ratio | >5.0dB |
| Optical Receiver Input Sensitivity | <-20.5 dBm |
| Optical Link Power Budget | 14.5 dB (minimum) |
| Cable | |
| Fiber Cable Type / Max. Length | 9/125μ Single-Mode Fiber with 1x ST connector / 1.2 miles (2.0 km) (1) Extended range (40 km) version available upon request. |
| DVIGear Fiber Cable | OFNP, Plenum-rated - additional data and custom lengths available on request |
| Cable Jacket | OFNP, Plenum-rated, Black PVC Jacket |
| Cable Outside Diameter | 3.0 - 5.0 mm |
| Mechanical | |
| Construction | High-impact metal enclosure with jet black finish |
| Case Dimensions (L x W x H) | 3.2" x 0.7" x 0.8" (82.1 mm x 16.9 mm x 19.1 mm) |
| Net Weight | DVI-7345-TX: 1.5 oz. (42 g) DVI-7345-RX: 1.5 oz. (42 g) |
| Environmental | |
| Operating Temperature | -40° to +185° F. (-40° to +85° C) |
| Storage Temperature | -40° to +185° F. (-40° to +85° C) |
| Operating Humidity | 5% to 80% (non-condensing) |
| Storage Humidity | 5% to 95% (non-condensing) |
| Power Requirements | |
| Optical Transmitter / Receiver | The Tx and Rx units can be powered from a functioning USB port using a USB adapter cable, or by the supplied external power adapters. |
| External AC Power Adapter | Input: 100-240VAC / 50-60Hz 0.2A Output: 5VDC, 2.6A |
| Power Consumption | DVI-7345-TX: 1.0 watts (maximum) DVI-7345-RX: 1.0 watts (maximum) |
| Regulatory Approvals | |
| Fiber Optic Extender Unit | FCC, CE, RoHS |
| AC Power Adapter | FCC, CE, UL, C-UL, CEC, GS, PSE, RoHS |
| Warranty | |
| Limited Warranty | 3 Years Parts and Labor |
| Model Numbers | |
| DVI-7345 | 3G-SDI Fiber Optic Extender, 1x ST |
| DVI-7345-TX | 3G-SDI Fiber Optic Transmitter, SMF 2KM, 1x ST |
| DVI-73451-TX | 3G-SDI Fiber Optic Transmitter, SMF 10KM, 1x ST |
| DVI-7345-RX | 3G-SDI Fiber Optic Receiver, 1x ST |
| DVI-CUST-OPT | 9/125μ Single-Mode Optical Fiber Cable, Plenum-rated, 1x ST (specify length)μ |
| Accessories Included | |
2x External AC Power Adapters (DVI-7331-PS) with USA plug, 1x Quick Start Guide | |
| Optional Accessories | |
External AC Power Adapter (DVI-7331-PS) with Euro, UK, or Australia plugs | |
| Product Notes | |
The Transmitter and Receiver Units are sold separately. The accessories shown here are included per unit. | |

Power Supply, +5VDC with USB Micro-B Connector
DVI-7331-PS
+5 VDC at 2.6 A with a USB Micro-B connector.
