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Subject to alterations
Version 2.2
IPCOMM GmbH
- 5 -
IPC191V3 Manual
Gundstraße 15
Copyright © 2012 IPCOMM GmbH
D-91056 Erlangen
All rights reserved
2.2.2 CPU-Module RS-232 Interfaces
The installed mainboard provides 3 serial interfaces. However, depending on the model these
interfaces are completely or only partly available at the chassis.
COM3 interface is active but reserved for internal purpose and cannot be used.
This interface type is used for COM 1
SERIAL PORT
RS-232 DTE
DB9 male connector
Pin
Direction
Description
1
INPUT
DCD
Data Carrier Detect
2
INPUT
RXD
Receive Data
3
OUTPUT
TXD
Transmit Data
4
OUTPUT
DTR
Data Terminal Ready
5
GND
Ground
6
INPUT
DSR
Data Set Ready
7
OUTPUT
RTS
Request To Send
8
INPUT
CTS
Clear To Send
9
INPUT
RI
Ring Indicator
Figure 3:
Pin Assignment of DB9 Interface (Computer) COM1-COM2
2.2.3 8-Port RS-232 Communication Board (RS-232 Interfaces for remote
communication)
Depending on the model each IPC191V3 can be equipped with up to two 8-port serial interface cards.
The following pin assignment is realized with an 8-port DB9 male connector cable (see Figure 2:
Overview Interfaces). Other cables (e.g. DB25) are possible on request.
SERIAL PORT
RS-232 DTE
DB9 male connector
Pin
Direction
Description
1
INPUT
DCD
Data Carrier Detect
2
INPUT
RXD
Receive Data
3
OUTPUT
TXD
Transmit Data
4
OUTPUT
DTR
Data Terminal Ready
5
GND
Ground
6
INPUT
DSR
Data Set Ready
7
OUTPUT
RTS
Request To Send
8
INPUT
CTS
Clear To Send
9
Figure 4:
Pin Assignment of DB9 interface (Communication Board)
Содержание IPC191V3
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