Zhuhai EMC Electronic Technology Co.,Ltd
Find the right product

Method 1:Enter product's part number:

Choose desired product category:





1. 16 Satellite IF inputs and 1 terrestrial TV inpupt, 40 user out;Terminal multiSwitch
2. Subscribers pass through select truck signal controlled by 13V\18V  0\22KHz and DiSEqC1.0(2.0)
3. The signal has no loss。User amplifier circuit compensates the loss and slope of 
    user signal cable, cable length from multiswitch to users can be up to 100 meters. (For large systems, refer to figures 1 and 2)
4. All the input signal can be adjusted to strong or weak, and it also can eliminate the imbalance phenomenon of the 
    signal strength which bring form LNB.
5Multi switch built-in 22KHz signal generator, compatible with universal Quad LNB and Quattro Quad LNB
6Terr port has power supply switch selector, which can provide power to antenna system according to the  users request.
7. Each signal input circuit is independent of the current protection circuit. And if one external short circuit will stop working, 
    other circuit still continue to work
8External AC90V ~ 265V switching power supply is a professional design. Powerful power and long service life; customers in different regions 
    can customize it for free.
9All F connectors are made of copper. And all ports have extra waterproof shim, so it is moisture proof and waterproof.
10There are LED lamp to show the subscribers using condition.
11Our products have the environmental tinplate shell and unique luxury plastic frame.


Model EMC1740S
Terr Frequency Range 5-862MHz
Sat Frequency Range 950-2150MHz
User Frequency Range 5-2150MHz
Input ports 16 Sat + 1 Terr
Output ports 40 user
User to control 13/18V,0K / 22kHz and DiSEqC 1.0/2.0 commands
User Sat gain ≥ 5 dB
User Terr gain ≤2dB
Inputs isolation  Sat \ Terr ≥30dB
Inputs isolation  V \ H ≥25dB
Isolation  low / high bands ≥35dB
Return Loss ≥12dB
User Max Output Level Sat 100 dBµV
User Max Output Level Terr 89 dBµV
Impedance(all ports) 75 Ω
DC Current Consumption 450 mA+LNB
Working Voltage AC100-240V
Working Temperature -40~ +80℃
Product size:(mm) 400×415×60 mm
Packing size: 49X42X54CM
Packing QTY : 5PCS / CTN

Since the switch has built in amplification circuit and a slope compensation circuit, the cascade output port has no signal attenuation and slope loss. This solution greatly improves the reliability of big TV projects. Due to the personalized design of this product, not very professional people can install the system.

The S-Series MultiSwitch of our company is a new generation of intelligent switch. Users usually don't need external amplifier, optical fiber LNB (any LNB can be used), and expensive multi-channel splitter (our company's general SMATV splitter is OK). Technicians should pay attention to this.

Installation wiring diagram

The red button switch is the power switch for terr antenna, which can be turned on if the customer needs to provide power in UHF band.

2 17way input signal gain adjusting potentiometers are specially used to control the signal strength in the system, especially in the 

  cascade system, which can balance the signal equalization at all levels.