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Modulator
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Optical Transmitter
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1550nm CATV Optical Amplifier/EDFA
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Optical Receiver
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Broadband Trunk Amplifier
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PLC/FBT Opitcal splitter
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Fusion Splicer
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GEPON ONU
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Other Accessories
2 ports Trunk amplifier
三、Product structure diagram
Low voltage（60V）power supply（Type A）/ High voltage（220V）power supply（Type B）(optional)
1.RF input 11.Input 60V over-current inserts
2.Adjustable attenuator 12.Input 60V over-current inserts
3.Adjustable equalization 13.EOC input
4.Imported amplification module 14.Input 60V over-current inserts
5.+24V Power indicator 15.Duplexer
6.Duplexer 16.Reverse detection port
7.Forward output detection port 17.Reverse import amplifier module
8.Output splitter or distributor plug（optional） 18.Adjustable attenuator
9. Output Port 1 19.Backhaul short circuit inserts
10.Output Port 2 20.EOC short circuit inserts
Yantai Yatai Photoelectricity Equipment Co., LTD
ADD：Beida Road No.132, Zhifu District, Yantai, Shandong, China
TEL：0086-535-6220126/6220639 FAX:0086-535-6220126
http://www. ytdq.com.cn E-mail: delia@ytdq.com.cn
CATV TRUNK EXTENDER User Manual
(Broadband network amplifier)
Model：YTG7134-EA/B YTG8134-EA/B
Yatai-series field-type bidirectional Trunk amplifier is specifically designed for last “1km” of CATV transmission network. It has good property, low power consumption, high reliability, and excellent value for money, suitable for medium and small-scale bidirectional transmission network and multi-level transmission of trunk line or distribution networks with high requirements. It adopts MOTOROLA、PHILIPS、NEC imported module, with stable performance, low noise figure, high output level. It has two equalizers in the front end and in the back end with two outputs ports. Its branch and distribution can make change according to your needs. Its one input port and two output ports have over-current protection function (with over-current inserts shear inside). It is more convenient to debug because of the plug-in duplex filter, plug-in fixed(or adjustable) equalizer and attenuator, and the scientific and reasonable on-line detection ports.
The equipment can work steadily for a long time under bad outdoor environmental condition because of the aluminum waterproof housing, high reliability switching power supply and strict lightning protection system.
一、Technique Data（This product meets the national GB/T11318-1996 stipulated norm）
|
Item ： |
Unit |
YTG7134 |
YTG8134 |
reverse parameters |
|
Frequency Range |
MHZ |
47/750 |
47-860/1000 |
5-30/42/65 |
|
Frequency Division ( Selected by the user ) |
MHZ |
30/47、42/58 、65/87 |
||
|
Rated Gain |
dB |
30 |
30 |
-2 |
|
Flatness In Band |
dB |
±0.75 |
±0.75 |
+0.3 |
|
Rated Input Level |
dBµV |
72 |
72 |
98 |
|
Rated Output Level |
dBµV |
102 |
102 |
96-80 |
|
Gain Adjustment Range |
dB |
0-20 |
-2-18 |
|
|
Slope Adjustment Range |
dB |
0~20 |
-3dB/ grade |
|
|
Noise figure |
dB |
≤8 |
≤10 |
≤6 |
|
（CTB）/59CH input |
dB |
63 |
61 |
78 |
|
（CSO）/59CH input |
dB |
62 |
61 |
70 |
|
Temperature Range （－15℃～45℃） |
dB |
-1.5dB-1dB |
Reverse parameters take SA8134 as example |
|
|
Return Loss |
dB |
≥16 |
||
|
Lightning Resistance |
KV |
5（10/700S） |
||
|
Power Voltage |
V |
AC 220±10%or AC 30~90v |
||
|
Power Consumption |
VA |
12 |
||
|
Dimensions |
mm |
190×260×90 |
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|
Working Temperature |
℃ |
-20±50 |
||
|
Weight |
Kg |
1.82 |
||
|
Bidirectional transmission function |
|
（35/47M or 65/87M）optional |
|
|
二、Precautions:
- If number of channels is two much or continuous transmission series of amplifier is too much, to ensure the image quality, the output level should be appropriately reduced.
- In order to achieve better flatness and better low frequency band signal-to-noise ratio, you had better use the two equalizers simultaneously. If intermediate line band signal level is too high (about 80MHz-200MHz), you had better use equalizer shown in chart (no. 3).
- Maximum gain means when attenuator, equalizer is zero, the gain of the branch outputs.
- After installation, please check over current condition. If the circuit does not need over-current function, you must pull out over-current inserts, and use Multimeter to check if there is short circuit condition(using minimum resistance profile of Multimeter).
- Maintenance matters: maintenance, installation is handled by professional person, and our company has commissioned local dealers for that matters. For technical advice, please contact local dealer or our technical department.
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Contact Us
TEl: +86-13375459819
Email: Info@ytdq.con.cn
Whatsapp: 13375459819
Wechat: 13375459819
Contacter: Linda
Address：No 132，Beida street, Zhifu district, Yantai city, Shandong province, China
Yantai Yatai Photoelectricity Equipment Co.,Ltd.
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