User's Manual

Designing an LGCell Solution
7-28 LGCell 4.0 Installation, Operation, and Reference Manual PN 8100-40
620004-0 Rev. B
7.3 System Gain
The following table shows a summary of the system gain when 1 km (3300 ft) of
62.5µm/125µm multimode fiber is used. The optical loss of 1 km (3300 ft) of MMF
cable ranges from about 0.6 to 1.0 dB optical, depending on the type of cable
(i.e., riser zip-cord, loose tube, slotted core, etc.).
NOTE: The maximum input power to the Main Hub is equal to the maximum output
power of the RAU minus the system gain. For example, for a Cellular system with 6
TDMA carriers, the maximum output power is 4.5 dBm per carrier. If the duplex port
is used, the maximum input power to the Main Hub should be no greater than
–25.5 dBm per carrier.
Table 7-25 System Gain when using Duplex/Simplex Ports
LGCell Frequency and Format
System Gain (dB)
Duplex Port Simplex Ports
800 MHz AMPS, TDMA 30 0
800 MHz CDMA 30 0
800 MHz iDEN 0 0
900 MHz GSM, EGSM 0 0
1800 MHz GSM 0 0
1900 MHz TDMA 40 0
1900 MHz CDMA 40 0
1900 MHz GSM 40 0