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
