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ROR-4(II) series four-way return optical receiver can adjust the input signal on/off ( RFOG Function) automatically or manually, and which greatly curbs the overall network noise. With its AGC function to make sure stable output signal even the signal changed in a wide range;

l Optimized circuit design, SMT process production, optimized signal path, make the photoelectric signal transmission more smooth.

l SCM control working status, LCD displays the parameters, convenience and intuitive operation, and stable performance.

l Excellent AGC characteristic, keep stable output level in the received optical power range -10～0dBm.

l Can switch to burst mode, greatly reduced the link aggregation noise; with single way RF shut off function, the localization diagnosis of ingress noise is easy.

l Support dual power supply hot backup mode and four-way mixed output mode.

l Reserved data communication interface, can connect with class II network management responder, access to network management system.

Item	Unit	Technical Parameters
Receiving OpticalPowerRange	dBm	-10～0
OpticalAGCRange	dBm	-10～0
Nominal Optical Wavelength	nm	1100～1600
Optical Fiber Connector Type		FC/APC, SC/APC
Optical Return Loss	dB	>45
Frequency Range	MHz	5～200
Output Level	dBμV	≥105
Flatness in Band	dB	±1
Return Loss	dB	≥ 16
Output Impedance	Ω	75
Adjustment Range of Output Level	dB	10 (Normal mode, turn on the optical AGC function)
		30 (Normal mode, turn off the optical AGC function, adopt MGC control)
		30 (RFOG burst mode)
The Accuracy of RFTestPort	dB	-20±1
Isolation between channels	dB	＞65
RF connector type		Female F connector or male F connector
NPR DynamicRange	dB	≥15 (NPR≥30 dB) Use DFB laser	≥10 (NPR≥30 dB) Use FP laser
Supply Voltage	V	AC90V-250V/50Hz or DC -48V
Consumption	W	20
Operating Temperature	℃	-20~ +45
Storage Temperature	℃	-20 ~ +65
Relative Humidity	%	Max 95% no condensation
Dimension	mm	483 (L) × 365 (W) × 44 (H)

Note: The nonlinear distortion index, link flatness and noise power ratio dynamic

range are the indexes of link that is composed of return optical transmitter

and return optical receiver.

Burst Mode*
Laser turn on threshold	dBμV	≥70
Laser turn off threshold	dBμV	≤62
Laser turn on time (t1)	us	0.5≤ t1 ≤1
Laser turn off time (t2)	us	0.5≤ t2 ≤1.5

Solution Reference

Triple play of GEPON/EPON+CATV network
CATV+GEPON Solution
Single Fiber Based FTTH Triple Play Access Solution