LSIS XBL-C41A User Manual

Chapter 12 Installation and Wiring
12 −18
12.5 Communication Interface Connection Method
12.5.1 RS-232C Interface (XBL-C21A)
Channel RS-232C uses 9-pin connector (Female) for communication with external devices. The
names and functions of pins and data directions are as shown in the figure below.
Pin No.
Name Contents
Signal Direction
(Cnet I/F module
↔ external device)
Description
1
CD
Carrier Detect
Reports carrier detection of DCE to DTE
2
RxD
Received Data
Received data signal
3
TxD
Transmitted Data
Transmitted data signal
4 DTR
Data Terminal
Ready
Reports ready communication of DTE
Note1
to
DCE
Note2
5
SG
Signal Ground
Ground line for signal
6
DSR
Data Set Ready
Reports ready communication of DCE to DTE
7
RTS
Request To Send
DTE asks DCE to send data
8
CTS
Clear To Send
DCE asks DTE to send data
9
RI
Ring
Reports ringing tone received from DCE to DTE
[Figure 12.5.1] RS-232C 9-pin Connector Standard
Channel RS-232C can communicate with external devices directly and also with remote communication
devices using modem. When connecting modem, communication type of RS-232C must be set to
‘modem’ with XG-PD, and when not using modem, it must be set to null modem
Notes
[Note1] DTE: Data Terminal Equipment (Cnet I/F module)
[Note2] DCE: Data Communication Equipment (external modem)

LSIS XBL-C41A Specifications

General

Brand	LSIS
Model	XBL-C41A
Category	Controller
Language	English