4.3.3 Rear view (connections):
Comments:
PROTECT B. 750 und 1000
1. Mains connection (UPS input) with electric fuse and
integrated spare fuse
2. Load connections (UPS outputs)
3. Overvoltage protection for data interface for ISDN,
fax, modem or network (RJ11 / RJ 45)
4. Communication interface RS232 (9-pin SUB-D
socket)
5. USB communication interface
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