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Tab. 4
D-Type-9 Pin No.
Pin 3
Pin 2
Pin 7
Pin 8
Pin 6
Pin 5
Pin 1
Pin 4
Pin 9
Pin Functions
Tab. 5
Abbreviation
TXD
RXD
CTS
DCD
DSR
DTR
RTS
RI
Ion Pumps Control Unit (No Battery) User Manual / 87-900-123-01 (B)
D Type 9 Pin FEMALE Connector
Abbreviation
TXD
RXD
RTS
CTS
DSR
SG
DCD
DTR
RI
Full Name
Function
Transmit Data
DTE Serial Data Output (TXD), IPCU Serial Data Input
Receive Data
DTE Serial Data Input (RXD), IPCU Serial Data Output
Clear to Send
This line indicates that the Modem (Controller) is
ready to exchange data.
Data Carrier
When the Modem (IPCU) detects a "Carrier" from the
Detect
other end of the line, this line becomes active.
Data Set Ready
This tells the DTE that the Modem (IPCU) is ready to
establish a link.
Data Terminal
This is the opposite of DSR. This tells the Modem
Ready
(Controller) that the DTE is ready to link.
Request To
This line informs the Modem (IPCU) is ready to
Send
exchange data.
Ring Indicator
Goes active when Modem detects a ringing signal
from the PSTN.
Not used on the Controller.
Technical Information
Pin Functions
Full Name
Transmit Data
Receive Data
Request To Send
Clear To Send
Data Set Ready
Signal Ground
Carrier Detect
Data Terminal Ready
Ring Indicator
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