Table of Contents
Advertisement
Figure 76
Each pair of modems placed in adjacent BPI-2 sharing slots (for AMM 20p,
2&3 and 4&5, 6&7 and 8&9, etc.) is related to the same polarization of the
transmitted signal over the same wireless channel. Therefore, the front panel
XPIC cross-cable shall connect modems in alternate slots (2&4 and 3&5, etc.).
See Figure 77 on page 87.
Figure 77
4.6.3.2
Functional Description
The 1+1 XPIC configuration provides propagation protection and equipment
protection on the MMU, RAU and antenna when using both polarizations in
co-channel dual polarized (CCDP) mode of operation with XPIC.
4/1555-CSH 109 32/1-V1 Uen B 2007-09-14
AMM 6p
0
1
AMM 20p
1+1 XPIC
1+1 XPIC
0/1 2
3
4
5
6
7
8
9
AMM 6p and AMM 20p in 1+1 XPIC configuration
AMM 6p
0
1
XPIC cross-cable connections (AMM 6p)
7
NPU
6
APU
MMU2 F 155
5
MMU2 F 155
4
1+1
XPIC
MMU2 F 155
3
MMU2 F 155
2
1+1 XPIC
1+1 XPIC
10 11 12 13 14 15 16 17 18 19 20 21
NPU
7
APU
6
MMU2 F 155
5
MMU2 F 155
4
1+1
XPIC
MMU2 F 155
3
MMU2 F 155
2
Radio Terminals
9967
9968
87
Hide quick links:
Advertisement
Table of Contents
