Polytron ONR 201, Руководство пользователя

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2. General functional description
The ONR 201 is an optical return path receiver especially for HFC networks, as well as data transmission for digital
CMTS services in CATV networks. By using power doubler amplifier modules, the device offers low noise and high
performance and is flexible for adapting to different requirements. The ONR 201 can be upgraded with up to 3 inde-
pendent optical return path receiver modules (ONR-M 200) in a
19“ 1 RU chassis, which convert the optical return
path signals at the headend/hubs into RF. Via an attenuator, the RF level can be adjusted based on the respective
application. An LED confirms the detection of an optical input. Each receiver has a test output, which is attenuated
by 20 dB to the output level of the module. By using an integrated power supply, the ONR 201 operates inde-
pendently.
Device variants
ONR 201 9417012
1x Return path receiver 19“ 5…200 MHz
ONR-M 200 9417018 1x Return path receiver module for upgrade of the ONR 201
Application example