Table 1-4
Assignment of the power supply interface
Pin
Name
Type
Meaning
1
P24 (+)
-
24 VDC potential (20.4 to 28.8 VDC)
2
M24 (-)
VI
Ground 24 V
3
SHIELD (PE)
Shield potential
Serial interface COM1
9-pin sub-D connector
Table 1-5
Assignment of the serial interface COM1 (V.24/RS232)
Connector
Pin
Name
Type
Remark
1
DCD (M5)
I
Receive signal level (carrier)
2
RxD (D2)
Serial receive data
3
TxD (D1)
O
Serial transmit data
4
DTR (S1)
Data terminal ready
5
GND (E2)
-
Ground (reference potential)
6
DSR (M1)
I
Data Set Ready
7
RTS (S2)
O
Request To Send
8
CTS (M2)
I
Clear To Send
9
RI (M3)
Incoming call
USB interfaces
The USB interfaces are implemented as sockets and comply with the generally valid standard.
The version information (1.1, 2.0 etc.), the maximum velocity (low speed, full speed, etc.) and
the socket type (A or B) are documented in the individual sections for the associated devices.
In principle, USB interfaces have the following characteristics:
● Integrated power supply up to 500 mA for each socket.
● Maximum cable length 3 m (Length including the supply cable to the hub and the connected
terminal device; only 1 hub at maximum is permitted. It should be noted that some
keyboards already have a hub.)
NOTICE
Cables that are too long can cause the screen to freeze
Observe the following restrictions for the USB front interface for connecting operator
panels to the keyboard, mouse or USB FlashDrive:
● Maximum cable length: 1.8 m
● Extension cables are not permissible
● Hot-plugging-capable devices are connected during operation and are identified
automatically.
General information and networking
1.3 Connecting
Operator panel front: OP 010
Manual, 07/2018, A5E36371538B
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