1.6.2
USB interface
The USB interface allows you to connect the AutoConfiguration Adapter
ACA21-USB (EEC) storage medium. This is used for saving/loading the
configuration data and diagnostic information, and for loading the software.
See "Accessories and order numbers" on page 44.
Figure
Pin
1
1 2
3
4
2
3
4
Table 3:
Pin assignment of the USB interface
1.7
Signal contact
MACH104-20TX-F
FAULT
USB
V.24
FAULT
RM
Sb
P
1
Figure 9: MACH104 device, front view
1 - Signal contact
The signal contact is a potential-free relay contact. The signal contact is open
when the device is not connected to a power supply.
The signal contact allows you to control external devices or monitor device
functions.
In the configuration, you specify how the device uses the signal contact.
You find detailed information regarding possible applications and
configuration of the signal contact in the software user documentation on the
Hirschmann product pages (www.hirschmann.com).
26
Function
VCC (VBus)
− Data
+ Data
Ground (GND)
5
7
1
3
2
4
6
8
9
11
13
15
10
12
14
16
17
19
21
23
18
20
22
24
Installation MACH104
Release 08 01/2019