User's Manual
Intelibs, Inc. Proprietary and Confidential Page 36
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SRU parameter screen selection for PCS/Cellular band TAB.
Path Use: Path use/not use selection
TOTATT: Total attenuation value that is applied to DL path
[TOTATT= USRATT + ALCATT + TCATT]
USRATT: User attenuation set value for user gain set
ALCATT: Attenuation value that controls DL gain automatically to
maintain output level under ALC level when HPA output is higher than
ALC level.
INPWR: Input power level which input to SRU
TCATT: Temperature compensation attenuation value and temperature
compensation Function ON/OFF
HPA On/Off: HPA ON/OFF function
OUT PWR: Transmitting output power level from SRU antenna port
OUT UPR: Output upper threshold level value and alarm
OUT LWR: Output lower threshold level value and alarm
ALC: Auto level limit control threshold value and on/off set
ASD: Auto level shutdown threshold value and on/off set
Protection On/Off: Protection Function ON/OFF to protect SRU from
over input power
IN UPR: UL(Rx) input upper threshold level value and alarm
CW: CH number of pilot signal and ON/OFF function to check UL path
gain budget (Pilot signal power level is -60dBm)
IN PWR: RVS power value at the LNA output point
ATT: User attenuation set value to control UL(Rx) gain
OPWR: UL output power level of SRU
AGC: Auto gain control level value and Function ON/OFF
AGC ATT: Applied attenuation value by AGC function
TC ATT: Applied temperature compensation attenuation value and
function ON/OFF
4.3 Firmware download
Firmware download is performed when system needs to be updated.
Downloading improper images (executable file of repeater CPU) may cause harmful damages to
equipment.
4.4 Additional function of RHU
4.4.1 ASD (Auto Shutdown) Function
1. If UL output power level of RHU is above the shutdown level longer than 1 second, RHU
automatically turns off amplifier to protect undesirable transmission.
2. During shutdown state, monitor RU input power. If the level is below5dBfrom shut down level,
turns on UL amplifier automatically.