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MDM-V4C25HW + MDF-V4C25HW + MDF-V4JRU -
MDM-V4C25HW -
MDF-V4C25HW -
MDF-V4JRU
4K-DIN Coax Connectors
Canare unique "4K-DIN" allows you to connect or disconnect 4 of 3G-SDI signals in one easy step.
Key Features and Benefits
- 75 ohm 4-channel coax connector with push-pull locking mechanism.
- Compact, solid, and lightweight nylon resin (PA 66) body
- Return loss: 20 dB @ 3 GHz
- MDF-V4JRU accepts MDM-V4C25HW and also DIN 1.0/2.3 plugs
- Note1:
- Replacement unit also available.
DCP-C25HW-ML for MDM
DCJ-C25HW-ML for MDF - Note2:
- Be sure to use Canare Crimp
- Tech Data
- Tech Note
- Downloads
Crimp PlugsCrimp Type
| Model | Suitable Cable | Die Set | Description | Standard package |
|---|---|---|---|---|
| MDM-V4C25HW | V4-2.5CHW | TCD-D253F | Male | 1pc |
| MDF-V4C25HW | V4-2.5CHW | TCD-D253F | Female | 1pc |
Flush-mount Receptacle
| Model | Description | Standard package |
|---|---|---|
| MDF-V4JRU | Jack to Jack | 1 pc |
MDM-V4C25HW
MDF-V4C25HW
MDF-V4JRU
< Connection Example >
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EX.1
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75 ohm DIN 1.0/2.3 plug x 4
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MDF-V4JRU
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MDM-V4C25HW
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EX.2
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MDF-V4C25HW
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MDM-V4C25HW
Technical Note
Voltage Standing - wave Ratio (VSWR) and Return Loss
Terminating the receiving end of a limited length coaxial cable using a resistance value not equal to its characteristic impedance creates a reflected wave that returns back down the cable to the sending end. The result is interference developing between the travelling wave and the return wave which results in a standing wave that causes voltage levels to fluctuate. The degree to which terminating resistance matches the characteristic impedance is indicated using the VSWR or voltage standing-wave ratio standard shown in Fig. 1. Going hand in hand with the VSWR ratio is the return loss factor which measures the size of the reflected wave current in relation to the travelling wave current. (See Fig. 2)
Fig. 1 Voltage Distribution Over Coaxial Cable
| VSWR | Return Loss (dB) |
|---|---|
| 2 | 9.54 |
| 1.5 | 13.98 |
| 1.2 | 20.83 |
| 1.1 | 26.44 |
| 1.05 | 32.26 |
| 1.02 | 40.09 |
| 1.01 | 46.06 |
Fig. 2 VSWR to Return Loss Conversion Table
