Hangzhou OpticTrans Communication Tech. Co., LTD.

1) Operating frequency: 5~85/110-1218MHz; support smoothly update on the spot (5~204/258-1218MHz).

2) Support downstream optical AGC, whose control range is 0~-5/-6/-7dBm adjustable.

3) Adopt electric adjusting mode for both EQ and ATT circuit, using LED displaying screen to modify directly.

4) Upstream output optical wavelength is optional (or specified by the user).

5) RFOG can be set as burst mode or continual mode.

6) Support DOCSIS 3.0 system and OBI Free.

3. Technical Parameter

3.1 Forward Path

Item

Unit

Technical Parameter

Receiving Optical Power

dBm

-8 ~ 0

Optical AGC Control Range

dBm

-5/-6/-7/ ~ 0（default as -5~0 ）

Optical Return Loss

dB

>45

Optical Receiving Wavelength

nm

1100~1610

Optical Connector

SC/APC

Optical Fiber Type

single mode

Frequency Range

MHz

110/258 ~1218

Flatness in Band

dB

±0.75 @Pin=-3dBm

Rated Output Level

dBμV

≥ 108 (@-5～0dBm)

Maximum Output Level

dBμV

≥ 110

Output Return Loss

dB

>16dB, -1.5dB/oct.

Attenuator Range

dB

0 ~15

C/N

dB

≥ 52（0dBm optical power input）

C/CTB

dB

≥ 60

CENELEC 42 kanal, EQ=6dB, output level 105dBμV@1218MHz.

C/CSO

dB

≥ 60

3.2 Return Path

Item

Unit

Technical Parameter

Optical Transmitting Wavelength

nm

1470 ~ 1610 (CWDM, all ITU wavelength)

Output Optical Power

mW

2

Optical Connector

SC/APC

Maximum Time from Application of RF to 90% Optical Power (Ready to Late-side Mask)

us

1.3

Maximum 10- 90% Optical Power Rise Time (Ready from Late-side Mask 10% to Early-side Mask 90%)

us

1.0

Minimum 10- 90% Optical Power Rise Time (Ready from Late-side Mask 10% to Early-side Mask 90%)

ns

100

Maximum Time from Removal of RF to the Time the Optical Carrier Falls to 10% of its Steady-state Amplitude (Ready to Late-side Mask)

us

1.6

Maximum 90- 10% Optical Power Fall Time

us

1.0

Minimum 90- 10% Optical Power Fall Time

ns

100

Frequency Range

MHz

5 ~ 85/204

Flatness in Band

dB

±0.75

Output Impedance

Ω

75

Return Loss

dB

>16dB

NPR Dynamic Range

dB

>15@NPR>30dB

Laser turn on Level

dBμV

67±1

Laser turn off Level

dBμV

58±1

Attenuator Range

dB

0~15

3.3 General Character