*) RF Over Fibre Receiver

1. 개요

본 기기는 광섬유 링크를 통한 최대 4채널의 광 RF 채널을 포함한 리시버로 다음과 같은 규격에 준한다.

2. 기능 및 특성

LOW NOISE DESIGN to allow great coverage when used to remote receiving antennas

HIGH INTERFERENCE IMMUNITY thanks to high IIP3 design and a control/compensation of gain

EASY TO USE thanks to integrated RF/optical power meter and optical power compensation

REAL-TIME CLOCK with a backed-up static RAM to monitor and record internal RF levels and service data (i.e. laser life time)

TX UNIT (remote RF reception, i.e. diversity antennas): MFL units can incorporate a digitally tuned filter (25 MHz bandwidth, center frequency tunable over 404-788 MHz).	It can route RF through an external filter or to additional receiver (redundancy) to easily implement a failsafe configuration that can switch on a redundant receiver or transmitter if any fault is detected It automatically monitors RF levels and intervenes to avoid fiber saturation

RX UNIT (RF transmission, i.e. single-frequency master/slave areas)	It can route an IFB high power signal to transmit locally and send low power IFB carrier over fiber to slave units	When it is working along with a MTK952MS in slave configuration, the fiber loss is automatically recovered and the units increase the gain so that the transmitter power equals the target level (measured with an SWR meter integrated into the MTK952MS)

REMOTE MONITOR/CONTROL thanks to a data link on Ethernet 10/100 Base Tx

RF INPUT/OUTPUT:

- 4 N connector female 50Ω with switchable 12V boosting power (only on transmitter      modules)

- 2 BNC-F 50Ω each optical transmitter module, failsafe option or external RF filter

- 1 BNC-F 50Ω each optical receiver module, failsafe option

OPTICAL INPUT/OUTPUT: 5 connectors SC-APC type

DATA LINK: RJ45: 10/100 Base TX

POWER SUPPLY:	AC INPUT: 90V-264V~, 47-63 Hz, 2A fused, max 60 Watts	DC INPUT: 10-28Vdc (max 5A), [XLR-4M] VDC-pin 4 / GND-pin 1 / NC-pin 2 / NC-pin 3

3. 규격 및 사양

Mainframe

RF to Optical modules (TX module)	: 1 to 4

Optical to RF modules (RX module) : 1 to 4

Maximum number of modules	: 4

RF to fiber link working modes	: ANT, IFB, 4ifb, 3ifb, 2ifb, 1ifb

Rear optical connectors	: 4SC/APC, 1LC/PC duplex, other type on	request

Internal optical CWDM MUX/DEMUX : 2 max (option OMS or OMX)

“ANT” mode – optical TX module

Typical application	: RX antenna remoting

Frequency ranges	:140 to 960 MHz (flat)

470 to 960 MHz

25MHz BW tunable band-pass filter 404-788MHz	(BF1)

40MHz BW tunable band-pass filter 430-730MHz	(F41/F42/F45)

940-960MHz (F42/F45)

806-810MHz (F45)

Other selectable filters

External user band-pass filter

External filter loss compensation	: 0 to 6 dB

TX Gain	: 0dB (user adjustable +6 to -20dB typ.)

Input IP3	: > 16 dBm typ.

Noise figure	: < 20dB typ.

SFDR	: > 116 dB/Hz 2/3 typ.

RF input connector	: N female 50 Ω

Antenna booster supply	: 12Vdc 200mA max

External filter connectors	: BNC female 50 Ω

“ANT” mode – optical RX module

RX Gain	: 0dB (user adjustable ± 14dB typ.)

Failsafe option	: yes, standard option

RF output connector	: N female 50 Ω

Failsafe connector	: BNC female 50 Ω

“IFB” mode – optical TX module

Typical application	: “IFB” signal remoting (isofrequency systems)

Frequency range	: 140 to 960 MHz

RF input level	: - 6 to 6 dBm [0.25mW to 4mW]

RF input level for 0dBm out (@ 0dB gain)	: from -3dBm to + 10dBm

RF input connector	: N female 50 Ω

“IFB” mode – optical RX module

RX output level	: 0 dBm (user adjustable +6 to -20dB typ.)

Failsafe option	: yes, standard option

RF output connector	: N female 50 Ω

Failsafe connector	: BNC female 50 Ω

Optical TX module

Optical power	: 6dBm [4mW] (other on request)

Wavelengths	: 1511 or 1531 or 1551 or 1571 nm

Laser	: low noise, low distortion DFB laser

Optical RX module

Input optical power range	: -5 dBm to 5 dBm [0.3mW to 3mW]

Wavelengths	: 1490 to 1610 nm

Temperature

Operating temperature	: -20 to +55 °C

Powering

AC mains	: 90 to 240 Vac, 60VA max

DC (option MFL-DC)	: 10-28Vdc 5A frame floating

SIZE

Dimensions	: 19”/1U, 430x44x370mm (W x H x D)

Weight	: 4,5 kg

* MFL 동급이상품