VOA Module with Low Insertion Loss for Receiver Protection

Product Description

Features Applications
High reliability High transmission optical power
High stability Optical path power balance
Low insertion loss Channel transmission equalization
Rapid response
Optical specifications

Operating voltage(V)	5-12V
Operating wavelength(nm)	1260-1650 or 980nm/1064nm
Center wavelength(nm)	1310/1550/1064
attenuation range(db)	0-30
Attenuation stability(db)	±0.04(max)
Return loss(db)	> 55
Operating temperature(ºC)	- 20~60
Storage temperature(ºC)	-40~80
Connector type	Optional
Pigtail length	Can be Customized
Control agreement	RS232
Channel number	1-10(Can be Customized )
Dimensions(LXWXH)	64X44X13 mm

Wiring Instruction

Function	Color
Positive (DC5V)	red
Negative	blue
RS232 TX	(3)
RS232 RX	(2)
RS232 GND	(5)

Communication Specification

A serial port options	Data set
Baud rate	9600
Stop bit	1 Digital
Data bit	8 Digital
Parity Check	No
Whether to send in hexadecimal format	Yes

Communication frame

Frame header	Channel	Data 1 bit	Data 2 bit	Instruction reply	Description
EE	C1	Z1(hexadecimal)	Z2(hexadecimal)	E0	C1=01 select channel 1 and C1=03 select channel 3. C1=00 select all channels. The attenuation value is set in dB and the value is (Z1x256+Z2) /10. If you want to attenuate 1 channel by 10.0dB (0x0064), send it by the serial port (EE 01 00 64)

Single channel VOA module instruction:
Single channel VOA Module (5V) (Fiber Optical power meter 2 channels)
Accuracy 0.1dB
1. Debug mode
When it is debugging,it connects the serial port to the serial port of the optical power meter, and connect the optical fiber in which you need to debug. When the data of the optical power meter is stable and basic value calibration, then supply power to the module (5V). If the light flashing, it means that the optical fiber line is not connected properly. Wait about 10 minutes to debugging,debugging during the LED light flashing,it is still normally on after finished debugging,The optical power meter displays -41dB.
2. Working mode
In usually, connect the serial port to the computer serial port.
Set the attenuation value command (HEX) EE AA 06 xx xx 00
xx xx is the dB value to be set. If the value is 25.6dB, enter 25.6 x 10 to convert it to hexadecimal 01 00
Ordering information

ZG	port	Working wavelength	Fiber type	Fiber length	Connector
	0101=1X1 0202=2x2 0404=4x4	10=1060nm 13=1310nm 15=1550nm 16=1625nm X=Others	1= Bare fiber 2=900um Fibre optical	1=1M	0=None 1=FC/APC 2= FC/PC 3=SC/APC