User Manual

RF Cabinet Interconnect Cables – continued

SC4812ET BTS Optimization/ATP — CDMA LMF

Jan 2002

H-20

MPC Functional Description

The MPC card provides (see Figure H-15) low-noise amplification for

all RX path signals. The low noise, high gain design improves frame RX

sensitivity and overcomes the splitting loss in the receive path. DC

voltages are monitored on the RF devices and regulators and are used to

generate hard and soft alarms. The MPC is not redundant at the

card–level, but includes dual–path amplifiers which provide soft–fail

redundancy for all sectors.

MPC to DRDC Cabling

The cables connecting the MPC cards to the DRDCs for a three sector

RF cabinet are shown in Figure H-15. A six sector RF cabinet would

have six more DRDC’s and they would be connected to the front of the

MPC cards.