Communication repeater GSM-R

networkinterfaceoptical

It meets the requirements of TB/T "technical conditions for unified monitoring and management system of GSM-R relay equipment" It meets the requirements of TB/T "technical specification for GSM-R relay equipment" It meets the requirements of hot standby for the whole machine It can detect the input power of the base station It has automatic regulation of downlink gain to ensure the stability of output power. The SWR detection module is added to detect the downlink SWR coefficient. The transmission loss of the optical path can be detected. Rich data interface: including local debugging port, network management communication interface, extended interface, and extended data channel interface Specification 1 U-NII Downlink: 930MHz～934MHz; Uplink: 885MHz～889MHz. 2 Maximum output power The maximum output power of the downlink is 37dBm, and the tolerance at normal temperature is in the range of ±1dB. 3 gain Maximum downlink gain: 40; tolerance range :±1dB; 4 adjustment range of gain Range of gain adjustment: ≥20dB. 5 gain adjustment step and step error The gain adjustment step is 1dB, and the gain adjustment step error is not more than ±1dB. 4 Range of automatic level control (ALC) When the input signal level is increased by no more than 13dB, the output power should be kept within ±2dB of the nominal linear output power. When the input signal level is increased by more than 13dB, the output power should be kept within ±2dB of the nominal linear output power, or be the output should be closed.