L2B series FTTB CATV Receiver
L2B series, is a low power consumption, high index, with SNMP network management, AGC, full function FTTB optical receiver. 2000 series’ shells are structure compact aluminum wall mount ( without rain-proof ), RF interface horizontal output, Nixie tube displaying parameters. RF Overlay interface is optional for IP/QAM and EOC insert, also can used for local program insert.
1. RF output port number: L2B1CRxx110, one output port 110dBμV.
L2B1CRxx106, two ports 106dBμV output.
L2B4CRxx102, four ports 102dB μ V output.
2. PD operation bandwidth:
L2BxCR41xxx, 47~1050MHz.
L2BxCR81xxx, 88~1050MHz , RF Overlay:5~65MHz.
3. L2BxCRxxxxx -N with SNMP, can using for remote management and control.
4. L2BxCRxxxxx -R with RF input port, can using for IP/QAM or EOC insert.
5. L2BxCRxxxxx -C with CWDM, can using for FTTx PON ‘ s single fiber multi wave application
Optical specifications | Remark | ||
Operating wavelength | nm | 1260~1620 | without CWDM option |
1540~1560 | -F & -C Options | ||
Input wavelength | nm | 1310, 1490/1550 | |
Pass wavelength | nm | 1310, 1490 | |
Channel isolation | dB | >40 | |
Responsivity | A/W | >0.85 | 1310nm |
>0.9 | 1550nm | ||
Optical AGC control range | dBm | +2~-9 | £GVo<¡Ó1.0dB |
Receiving power | dBm | +2~-10 | Analog TV |
+2~-16 | Digital TV | ||
Optical return loss | dB | >50 | |
Optical fiber connector | LC/APC | SC/APC or FC/APC | |
RF specifications | |||
Work bandwidth | MHz | 47-1050 | L2BaCR41 |
88~1050 | L2BaCR81 RF overlay 5~65MHz |
||
Flatness | dB | <¡Ó1.0 | |
Number of RF output | 1 | L2B1CRxx110 | |
2 | L2B2CRxx106 | ||
4 | L2B4CRxx102 | ||
Output level | dBµV | 110 | L2B1CRxx110 |
106 | L2B2CRxx106 | ||
102 | L2B4CRxx102 | ||
Return loss @ 47-862MHz | dB | >16 | L1BxCR48xxx (47~862MHz ) |
dB | >12 | L1BxCR41xxx (47~1050MHz ) |
|
ALC feature | dB | <±1 | Pin: -9.0~ +2.0dBm |
EQ ADJ | dB | 0~15 | |
Output level adjust | dB | -15~0 | 1dB stepping |
RF overlay bandwidth | MHz | 47~1050 | L2BxCR41xxx |
5~65 | L2BxCR81xxx | ||
RF overlay input level | dBµV | 80 | -R option |
Output impedance | Ω | 75 | |
RF port | F-Female | ||
Analog TV specifications | |||
Test channel | Ch | PAL D/59Ch | 47-550MHz Analog |
Digital QAM | 550-1100 MHz | ||
OMI | % | 3.8 | |
CNR1 | dB | 53.5 | Pin= -2dBm |
CNR2 | dB | 47.8 | Pin= -7dBm |
CTB | dB | <-63 | Pin= -2dBm |
CSO | dB | <-67 | Pin= -2dBm |
HUM | dB | <-60 | |
Digital TV specifications | |||
Test channel | Ch | <10 | Analog |
Digital QAM | 470-1100 MHz | ||
MER | dB | 37 | Pin= -10.0~+2.0dBm |
33 | Pin= -16.0dBm | ||
BER | dB | <1.0E-9 | Pin= -20.0~+2.0dBm |
General specifications | |||
SNMP connector | RJ45 | SNMP | |
Operating voltage | V | 8 | External power supply |
Operating current | A | 0.75 | |
Power consumption | W | <15 | |
Working temperature | ℃ | -40 ~ +60 | |
Storage temperature | ℃ | -40 ~ +65 | |
Relative Humidity | % | 5-59 | |
Dimension | mm | 163x125x32 | WxDxH |
Part number | RF power (dBuV) | RF bandwidth (MHz) | Number of RF outputs |
L2B1CR41110-cdd | 110 | 47~1050 | 1 |
L2B1CR81110-cdd | 110 | 88~1050 | 1 |
L2B2CR41106-cdd | 106 | 47~1050 | 2 |
L2B2CR81106-cdd | 106 | 88~1050 | 2 |
L2B4CR41102-cdd | 102 | 47~1050 | 4 |
L2B4CR81102-cdd | 102 | 88~1050 | 4 |
c: | C | 1310/1490 & 1550nm CWDM filter |
|
F | 1550nm filter | ||
dd: | SA | SC/APC | |
LA | LC/APC | ||
e | R | RF Overlay | |
N | SNMP |