ADCP-75-210 • Issue 1 • March 2007
Page 26
© 2007, ADC Telecommunications, Inc.
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).
Table 14. PAA Connection Points and Indicators
REF # DESIGNATION DEVICE FUNCTIONAL DESCRIPTION
1 DC_IN Green LED DC In. Lighted when PIC has -48 VDC input
2 PA_FAULT Red LED PA Fault. Lighted when PA has failed
3 DC_OUT Green LED DC Out. Lighted when PIC has +28 VDC output
4 I2C RJ-45 connector
(J1)
I2C (Bus). Connection to RUC module P/A CNTRL using
cable 1001475P001
5 48V PWR Positronic 3-pin
connector (J2)
48 Volt DC Power. Input to PIC for -48 VDC using PIC
power harness 1001471P001
6 RF OUT SMA connector RF Out. Output of PA for cable 1955000P080 to one of the
four plexers (depending on band), connector port TX
7 (Unmarked) Power Amplifier Power amplifier (see description on preceding page)
8 RF IN SMA connector RF In. Input from RUC for cable 19559999P079
