Digital Fiber Optic Signal Repeater Das System

• Customization: Available
• Type: Fiber Optic Cable
• Transmission Medium: Optical Fiber
• Model NO.: ET-CRDFO43T-F
• Standard: Standard
• Lightning Protection: With Lightning Protection
• Certification: ISO, RoHS
• Condition: New
• Band: GSM/CDMA/Dcs/PCS/3G/4G LTE/5g/Tetra
• Work Environment: Indoor or Outdoor
• Outpower: From 33dBm to 43dBm
• Logo: Customized
• Gain: 50dB
• Gain Adjust Range: >30dB
• Noise Figure: <5.0dB
• Vswr: <1.5
• Time Delay: <9us
• Band Flatness: <3dB
• Transport Package: Carton or Wooden Case
• Specification: CE, ROHS
• Trademark: ETENDA
• Origin: Shenzhen
• HS Code: 8517611010
• Production Capacity: 500PCS/Month

Product Description

digital fiber optic signal repeater Das system

Technical features

1. Waterproof Remote Repeater box suitable for outdoor service;
2. Metal cavity filter technology inside, which gives wider receiving and sending separation, better gain flatness, higher stability, and lower noise figure; 
3. It support EGSM&GSM,DCS,WCDMA triple band or 2G 3G 4G any triple band;
4. Optical fiber transmission, single equipment and SINGLE fiber, few nodes, single wiring, simple construction and installation, high system reliability and convenient maintenance;
5. Output power of each system can be adjusted to improve the accuracy of coverage;
6. The power amplifier adopts digital predistortion technology to improve the efficiency of the whole equipment;
7. It supports optical bypass and optical loop;
8. It supports star, daisy chain and hybrid networking mode, with flexible networking;
9. The intelligent start-up station can be directly installed after site selection and can be directly used without debugging gain matching.

Typical applications

There are 4 optical ports in the donor unit of the digital fiber optic repeater. A single optical port can chain connect 6 remote units, 4 optical ports max can carry up to 24 remote units.It can form a distributed coverage system to cover a wide range, especially suitable for long-distance strip coverage area.
         
          

Main Specification  
 

Main Item			Specification(on user requirement)
			UpLink		DownLink
Frequency Range		EGSM&GSM	880-915 MHz		925-960 MHz
		DCS	1710-1785 MHz		1805-1880 MHz
		WCDMA	1920-1980 MHz		2110-2170 MHz
		CDMA	824-849 MHz		869-894MHz
		PCS	1850-1910 MHz		1930-1990 MHz
		AWS	1710-1755 MHz		2110-2155 MHz
		IDEN	806-821 MHz		851-866 MHz
		TETRA	350-380 MHz		380-410 MHz(customized)
		LTE	700MHz(A,B,C,D band optional)
			2500-2570 MHz		2620-2690 MHz(customized)
Max gain			45		50
ALC			Output increment will not exceed 2dB when input increase 10dB
Max output power			-12		37
Gain adjust step(dB)			1
Gain adjust range(dB)			≥30
Gain adjust error(dB)	1-10		≤|±1.0|
	11-20		≤|±1.0|
	21-30		≤|±1.5|
Noise figure(dB)			≤5.0	≤5.0
Band flatness(dB)			≤3.0
Frequency error			≤0.05ppm
Spurious emission	Out of the working frequency band (2.5MHz out of the band edge ).		9KHz-1GHz≤-36dBm
			1GHz-12.75GHz≤-30dBm
IMD attenuation	In band		≤-36dBc/30KHz
Out band rejection(dB)	2.5MHz≤ f_offset<5 MHz		≥30
	5 MHz ≤f_offset		≥60
vswr			≤1.5
Time delay(us)			≤9
Time delay adjust range(us)			≥50
Optical power(dBm)			≥-9
optical receiving sensitivity(dBm)			≤-20
Optical transmission distance(km)			≥20
Power supply			AC220V±20%,50±5Hz
Size(mm)			Donor unit:1u cabinet,remote unit:320×450×187(mm)
Monitor method			RJ-45/RS232
Working environment			working temperature:-20ºC~55ºC; working humidity:15%~95%;
Protection class			IP65
Weight			<10kg/35kg
Fiber Connector			FC/APC or SC/APC
Fiber Mode			Single mode
Optic Wavelength			1310nm or 1550nm

Supervising Specifications
 

Self diagnostic platform	Microprocessor based
Alarms	amplifiers status, power amplifiers status, power supply failure, battery backup failure, temperature, AGC, RF overload, poor antenna isolation.
Local management and supervising	Built-in gain adjustment interface and alarms/status LEDs, PC access via RS-232 (OMS)
Remote management and supervising	Remote access via wireless GSM SMS modem OR GPRS Modem     OR Ethernet, option RC (OMS)