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3.4.5 Fuses
SI 1
2 A slow blowing (type H 1500 A )
The fuse SI 1 is melted by an internal protection circuit of the ENT-DC if the supply voltage (24 VDC) increases
to values above 32 V. This feature is safety relevant to protect the internal circuit from overloads.
3.4.6 S-ENT/PC-25 Connecting Cable ENT-DC-2.0 to PC (25 pin D-Sub)
Cable for loading of projects from PC to a terminal (TERMEX) and for communication between TERMEX and
PC.
PC
25pin D-Sub male
TxD
2
RxD
3
RTS 4
CTS 5
DSR 6
GND
7
DTR 20
TDOCT-4038_ENG / 2015-01
Warning
The fuse SI 1 is safety relevant. Always use the correct
type fuse.
Warning
The fuses SI 2 through SI 4 (round fine-wire fuses) may
not be removed nor replaced.
A defect in these fuses is unlikely.
ENT-DC
9pin D-Sub female
1 Tx-
2 Tx+
6 TxD
7 RxD
9 GND
housing
16
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