When using cables with various interfaces, we will definitely consider at some point whether the length of the cable meets our needs. The transmission distance of the cable is partly limited to the use of the scene. We have given you a clear and simple summary of the cable transmission distance and how to easily solve it if it is not long enough.
First, optical fiber
We have also mentioned this before, optical fiber is divided into single mode and multimode, the following is the specific transmission distance.
(1) In 10Mbps and 100Mbps Ethernet, multimode fiber supports a transmission distance of up to 2000 meters. In a 1Gbps Gigabit network, multimode fiber can support transmission distances of up to 550 meters.
(2) In 100Mbps Ethernet to 1G Gigabit network, single-mode fiber can support transmission distances of more than 5000 meters. The transmission distance of single-mode optical modules can reach 150 to 200 kilometers.
How to extend fiber optics?
Here you need to know the connectors of the optical fiber in advance, such as LC, SC, etc., as well as the type of fiber cable, such as how many cores are inside. Let’s get down to the point:
(1) The fiber is extended, a staging station is needed, and at this moment you need a device, flange (adapter). It can connect two fibers together. There are also many flange interfaces that need to be matched with fiber optic cable connectors.
(2) It is also necessary to note here that the flange will bring optical signal attenuation, which is almost negligible, but it cannot be too long or use many flanges, or it is necessary to maintain the appropriate length.
Second, the network cable
Network cable we mainly around the super five, six types and other common cables, the transmission distance is about 100 meters.
How do I extend the network cable?
Repeaters can be installed between two network cables, up to 4 can be installed, and if 5 network segments are connected, the maximum transmission distance can reach 500 meters.
3. HDMI cable
The general HDMI signal transmission distance is within 30 meters, and the low quality is not more than 15 meters.
How to extend the HDMI cable
(1) Directly use the HDMI extension cable to extend the female port, which is more convenient to plug and unplug, and can also be effectively extended.
(2) HDMI signal amplifier, if the demand distance is more than 30 meters, can be used.
(3) HDMI optical fiber line, that is, replacing the copper wire inside with optical fiber, can achieve a transmission distance of 100 meters.
Fourth, DVI line
The general transmission distance of DVI lines is only about 5 meters, and the signal will attenuate beyond 5 meters.
DVI-D can only receive digital signals; The DVI-I can receive both digital and analog signals, and the transmission distance is also short, 7-15M.
How to extend the DVI line
(1) If it is about 30 meters, a signal amplifier or repeater can be used. Usually the signal amplifier and repeater can effectively transmit the signal of 1920×1200 to 15 meters, and the DVI signal of 1280×1024 to 30 meters, using a general DVI cable.
(2) Using a special DVI fiber optic cable, it can be up to 500 meters. Similar to the HDMI structure, it also adds fiber to the cable, and the highest resolution supports 1920×1200.
Of course, in addition to these two, you can use the super-five network cable transmission, or optical cable transmission equipment, etc., can extend the DVI transmission distance.
V. VGA line
The VGA transmission distance is 20-40 meters, which is slightly farther than HDMI and DVI.
How do I extend the VGA cable?
You can use the VGA extender, of course, this is more troublesome, if it is about 50 meters, you can directly choose the VGA extension cable, connect it in one step.
6. USB cable
The USB cable transmission distance is also very short, generally 3-5 meters.
How do I extend a USB cable?
Using a USB extender, transmit the USB signal 50-100 meters before the network cable.
RS232 and RS485
These two interfaces are currently relatively rare, and the maximum transmission distance of RS232 is 15 meters, and it can only communicate point-to-point. The RS485 has a maximum transmission distance of 1200 meters. The maximum transmission rate is 10Mbps, and the maximum communication distance can be reached at a transmission rate of 100Kb/S.
How do I extend the RS485 cable?
Impedance matching, low-attenuation dedicated cables can be used, up to 1800 meters. If you want to exceed 1200 meters, you can add repeaters (up to 8), so that the transmission distance is close to 10 kilometers.
Post time: Sep-16-2022