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HOST COMPUTER
5
3 4
2
1
8
7
6
HUB
7188E5
7188E5
Ethernet 10M
Ethernet 10M
RS-232
device
To Ethernet Router
RS-232
device
RS-485
device
device
RS-485
RS-232
device
RS-232
device
device
RS-232
device
RS-232
RS-232
RS-232
device
device
HOST COMPUTER
5
3 4
2
1
8
7
6
HUB
7188E8
7188E8
Ethernet 10M
Ethernet 10M
RS-232
device
RS-485
device
device
RS-485
RS-232
device
device
RS-232
RS-232
device
device
RS-232
device
RS-232
device
RS-232
device
RS-232
RS-232
device
device
device
RS-232
device
RS-232
device
RS-232
RS-232
RS-232
device
7188E Series Hardware User’s Manual, 2004, v2.2, 7MH-016-22 ----- 84