KDR-01/01A Optical Receiver

Overview

KDR-01/01A Indoor Optical Receiver maintains at internationally advanced level in path switching technique by using the two-route quick swap technique of the Company, KDR—01 is of one-route reception, and KDR-01/01A is of two-route reception, having the functions of AGC control and performing status auto-alarm, and having perfect network monitoring interface, able to be conducted network monitoring through Ethernet from remote end.

Features:

• 1U19" standard rack

• 45-870MHz performing bandwidth

• Two-route quick swap technique

• Function of AGC control

• Special design aluminum-shielding housed laser can prevent static damage.

• Front-panel liquid crystal display and control of performing parameters.

• Performing status auto-alarm, perfect network monitoring interface, network monitoring available through Ethernet from remote end.

• Low power-consumption design, no need of fan, reliability enhanced.

• Using original imported GaAs module of PDI.

Functional Block Diagram

KDR-01/01A Optical Transmitter is composed of the following main circuits:

(1) Optical reception circuit: Using the imported GaAs amplifier with extremely low noise coefficient, can realize the reception at low-power high-linearity.

(2) Channel control circuit: Using the fast swap technique of the Company,only about 5ms as the time need for path switching time, thus greatly lower than that of its craft brother, i.e.20ms; no feeling of scintillation in terms of intuitionistic effect. Under normal operation, the work is done in Route A, when the optical power is lower than －6dB at the port of Route A, than the work will be automatically switched to Route B, if the optical power at the port of Line B is also lower than －6dB, than the work in Route A will not be switched.

(3) RF Electric Circuit: All the amplifiers for RF path have been adopted original imported amplifiers, of which the output step has been adopted the GaAs high-linearity amplifier of PDI company, a great enhancement to the non-linear feature of the whole machine, can facilitate the long-distance transmission for multi-level cascade connection.

(4) Power-supply circuit: Using the high-quality switching power supply,having the functions of protection against overcurrent, overvoltage and shortcircuit, a safe performance of machine functions thus guaranteed.

Specifications

KDR-01 is one-route reception.

KDR-01/01A is two-route reception.

Optical Feature