Installation guide

MyPBX U520 Installation Guide
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3.2 Installation Instructions
After placing MyPBX U520 in a suitable place, please connect the power adapter and all other cables to
complete the installation.
3.2.1 Connection of Ethernet Ports
MyPBX U520 provides two 10/100M adaptive RJ45 Ethernet ports, that is, LAN port and WAN port.
 WAN Port Connection
Connect one end of a network cable to the WAN port of MyPBX U520, and the other end to the Ethernet
port of a hub, switch or ADSL modem.
 LAN Port Connection
Connect one end of a network cable to the LAN port of MyPBX U520, and the other end to any port of
company’s LAN switch/router.
If the LAN port is connected to PC directly (not via a switch), please use cross-over cable.
3.2.2 Connection of E1/T1/FXO/GSM/UMTS/BRI ports
MyPBX U520 supports various outside lines (e.g. E1/T1, FXO, GSM/UMTS, or BRI). Below are the connection
instructions of each kind of outside line taking the device installed with 2 E1/T1, 2 FXO ports, 2 GSM ports,
and 2 BRI ports as an example.
1. Connection of E1/T1 port
The E1/T1 port could be connected to the E1 line or the E1 port of traditional PBX.
Note: the E1/T1 port of MyPBX U520 is RJ45 port, and the pins are defined as below table:
Item
Description
1
RX- Receive Data-
2
RX+ Receive Data+
3
Not used
4
TX- Transmit Data-
5
TX+ Transmit Data+
6
Not used
7
Not used
8
Not used
Note: Please follow the below steps to make RJ45 cable to connect it to the E1 port.
Step 1: Connect MyPBX U520 E1 port to the E1 line according to the line sequence of E1 port.
From the above table, we can see that the No.1 and No.2 pins of MyPBX U520 E1 port is for receiving
data (No.1 for receiving data -, No.2 for receiving data +), while No.4 and No.5 is for transmitting data
(No.4 is for transmitting data -, No.5 is for transmitting data +).