Anritsu MT8821C - Page 61

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<Using three MT8820C units>
1. Connect three MT8820C units as shown in the figure below.
Main1
Input/Output
RF In/Out
UE
Main1
Input/Output
10 MHz/13 MHz Ref In
Call Proc. I/O-1
Call Proc. I/O-1
10 MHz Buff Out
PCC
SCC-1
BNC cable
Synchronous cable J1606A
10 MHz/13 MHz Ref In
10 MHz Buff Out
Main1
Input/Output
Master
Slave
Slave (not connect)
Call Proc. I/O-1
SCC-2
Slave
Call Proc. I/O-1
10 MHz Buff Out
10 MHz/13 MHz Ref In
Master
Phone-1
Slave 1
Phone-1
Slave 2
Phone-1
BNC cable
Synchronous cable J1606A
J1606A J1606A
Slave
Slave
Master
Slave (not connected)
無し)
Connection Example for FDD DL CA 3CCs Testing (using three MT8820C units)
2. [SCC-1/2] Execute REF 10MHZEXT to Ref. Frequency to 10 MHz (EXT).
3. [SCC-1/2] Execute ENTERSYNC EXT_SLAVE to set the frame timing synchronization processing slave status.
4. [PCC] Execute ENTERSYNC MASTER to perform frame timing synchronization processing.
5. [SCC-1/2] Execute ENTERSYNC? to query the call processing status.
6. [SCC-1/2] Check that the response of step 5 is 1 (synchronization established).