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2.3.1.2.2. Connection using Main Connector (Rx diversity)
This example shows the connection diagram for the 3DL/1UL CA and Rx diversity condition. The DL signals of PCC,
SCC1 and SCC2 are combined by the internal combiners of MT8821C and output at both Main1 connector of
Phone1 and Main1 connector of Phone2.
<Connection Diagram>
<Internal Routing Diagram>
Figure 2.3.1-4 Connection Diagram for 3DL/1UL CA, Tx and Rx Test
(MT8821C, antenna configuration set to Rx Diversity)
[Routing setting procedure]
1. Execute ANTCONFIG RX_DIVERSITY to set Common Parameter - Antenna Configuration to Rx Diversity.
2. Execute TXOUT 1, MAIN to set the output connector System Config – Routing(Phone1) - Tx1 to Main.
3. Execute TXOUT 2, MAIN to set the output connector System Config – Routing(Phone1) - Tx2 to Main.
4. Execute TXOUT 3, MAIN to set the output connector System Config – Routing(Phone1) - Tx3 to Main.
5. Execute TXOUT_P2 1, MAIN to set the output connector System Config – Routing(Phone2) - Tx1 to Main.
6. Execute TXOUT_P2 2, MAIN to set the output connector System Config – Routing(Phone2) - Tx2 to Main.
7. Execute TXOUT_P2 3, MAIN to set the output connector System Config – Routing(Phone2) - Tx3 to Main.
Note: When Both the Phone1 and Phone2 LTE measurement software are active, Receiver Diversity can be
selected at the Phone1 side only.
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