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MyPBX U520 Installation Guide
http://www.yeastar.com 10/17
Figure 3-2 Connection of E1/T1 port
2.
Connection of FXO ports
The FXO port could be connected to the PSTN line or the FXS port of a traditional PBX with a phone line.
For instance, if No.2 and No.4 connectors are FXO ports, the connection could be depicted as below:
Figure 3-3 Connection of FXO ports and status LED
3.
Connection of GSM/UMTS ports
If No.3 and No.7 connectors are GSM/UMTS Ports, the steps of connection are as below:
Step 1: Open the Upper case of MyPBX U520
Step 2: Insert the SIM card as below:
Figure 3-4 Inserting the SIM Card
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