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PRODUCT

TFR7800J Indoor Optical Receiver

The TFR7800J indoor optical receiver is designed to transmit the cable TV signal. Simple 220V, 50Hz or DC48V power supply, 2 RF output F connector ...

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TFR7800J Indoor Optical Receiver

Overview        The TFR7800J indoor optical receiver is designed to transmit the cable TV signal. Simple 220V, 50Hz or DC48V power supply, 2 RF output F connector OUT1, OUT2. Features         ● The output adopts the import module, which improves the C/N and the nonlinear distortion characteristics, and also reduces the power consumption of the whole machine.
        ● Strict reliability test, MTBF is more than 100 thousand hours;
        ● AGC for forward optical receiving, the range of output level is within + 1dB when optical power is -6dBm to +2dBm.
        ● RF output level and slope adjustment can be set through the LCD screen.
        ● Splitter / distributive output optional;
        ● LCD display control and RJ45 network management status monitoring, support SNMP network management, can be monitored by local computer. Technical Specifications

NO.

Item

Unit

Description

Remark

Optical Input

1

Optical Input Wavelength

nm

1200～1600

2

Optical Input Power

dBm

-8～+2

3

AGC

dBm

+2～-6

4

Optical Connector Type

FC/APC or SC/APC

5

Optical Output Loss

dB

≥45

RF Output

1

Frequency Range

MHz

47～860/1000

2

Flatness

dB

±0.75 (output 1、2)

3

RF Output Test

dB

-20±1

4

Output Level

dB

1 way output ≥108dBuV;

2 way distributive output≥104dBuV

5

Equalization

dB

0～-20

1dB step

6

ATT

dB

0～-20

1dBstep

7

RF Impedance

Ω

75

8

Return Loss

dB

≥16(47～860MHz)

9

CNR

dB

51

Remark

10

CSO

dB

60

11

CTB

dB

65

12

Power

V

AC220±10% or DC48

13

Dimension

mm

495×230×43

14

Power Consumption

W

＜20

15

Operating Temperature

℃

0～＋50

Remark: The measurement uses a standard laser transmitter, chain route 10km optical fiber attenuator, with a received optical power of -1dBm. At 550MHz

Within the frequency range, 59 PAL-D TV channels are configured according to the Chinese standard. RF output signal is tilted 12dB (862MHz), RF output signal level is 108dBuV.