USL840 series 400 - 550 MHz RF-Over-Fiber transceiver
For analog and digital radio and intercom systems.
The basic model USL841-13/15 (by a distal end and a proximal end machine machine components) can achieve 1 to 1 communication.
The USL844-15 model enables multi-point communications (one machine and four proximal distal machine), and achieve a proximal end machine with up to eight Communication distal end machines.
Near and far end devices have the RF output gain adjustment, adjustable range is 32dB (1dB step). Transmission distance: a drag can reach 20KM; more than a trailer is up to 10KM. Each device has the alarm and radio alarm function.
Except the basic RF signal transmission, they also have built-in FSK transparent transmission channel, for network management, with RS232 signal transmission.
specifications
input signal level: 0dBm; Output signal level: 0dBm
OIP3: -60dBc; Bottom noise: -130dBm / Hz
fiber Quantity: Bidirectional
optical interface: FC / APC; RF interface: SMA-50Ω
power: DC 12V; Power connector and FSK interfaces: DB9
CATV-over-Fibre transmitter & receiver
digital TV FTTH (include DVB-T)
integration of three networks
FTTH PON
HS-2900 transmitter
excellent linearity and flatness
SMF high return loss
GaAs amplifier active devices
ultra low noise technology
DFB laser
smaller size & easier to install
red-LED for power indication
HS-9122L receiver
extra-low noise (3.8% modulate, -10dBm receive, CNR ≥ 45dB)
wide dynamic receiving optical power range: within Pin=-15, MER≥36.7dB
applicable GPON, EPON, compatible with any FTTx PON technology
within 47~862MHz bandwidth, all with excellent flatness feature (FL≤±0.75dB)
metal case, offer safeguard for opt-electronic sensitive devices
low consumption, high performance & high reliability