Table 14. PAA Connection Points and Indicators
REF # | DESIGNATION | DEVICE | FUNCTIONAL DESCRIPTION |
1 | DC_IN | Green LED | DC In. Lighted when PIC has |
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2 | PA_FAULT | Red LED | PA Fault. Lighted when PA has failed |
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3 | DC_OUT | Green LED | DC Out. Lighted when PIC has +28 VDC output |
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4 | I2C | I2C (Bus). Connection to RUC module P/A CNTRL using | |
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| (J1) | cable 1001475P001 |
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5 | 48V PWR | Positronic | 48 Volt DC Power. Input to PIC for |
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| connector (J2) | power harness 1001471P001 |
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6 | RF OUT | SMA connector | RF Out. Output of PA for cable 1955000P080 to one of the |
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| four plexers (depending on band), connector port TX |
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7 | (Unmarked) | Power Amplifier | Power amplifier (see description on preceding page) |
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8 | RF IN | SMA connector | RF In. Input from RUC for cable 19559999P079 |
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1.10 Multiplexer System
The NXD RAN multiplexer system consists of four units that interface to the antenna, PAs, and multicouplers:
•Quadplexer Primary (PCS Bands A, B, F), interfaces to PCS primary antenna;
•Quadplexer Diversity (PCS Bands D, E, C), interfaces to PCS diversity antenna;
•Triplexer Primary, either of two types:
–Type one (Cellular Band B, SMR800 Band), interfaces to 800 MHz primary antenna;
–Type two (SMR800 Band, SMR900 Band), interfaces to 800 MHz primary antenna;
•Diplexer Diversity (Cellular Band A), interfaces to 800 MHz diversity antenna.
For a schematic of the PCS multiplexers, see Figure 21. For a schematic of the Cellular/SMR multiplexers, see Figure 22 (showing Cellular B, SMR800 triplexer) or Figure 23 (showing SMR800, SMR900 triplexer).
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© 2007, ADC Telecommunications, Inc.