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10 6609-2221
Pin Signal Name*
Direction** Description
Number Description V.24 RS-232C
1 DCD 109 CF Out Data Carrier Detect
2 RD 104 BB Out Received Data
3 TD 103 BA In Transmitted Data
4 DTR 108.2 CD In Data Terminal Ready
5 SG 102 AB In/Out Signal Ground
6 DSR 107 CC Out Data Set Ready
7 RTS 105 CA In Request to Send
8 CTS 106 CB Out Clear to Send
9 RI 125 CE – Ring Indicator, NC
CH1: RS-232 Connections, DCE
* Functionality might differ from standard
** Direction relative ED-20
NC Not connected
Pin Signal Name*
Direction** Description
Number Description V.24 RS-232C
1 DCD 109 CF – Data Carrier Detect, NC
2 RD 104 BB Out Received Data
3 TD 103 BA In Transmitted Data
4 DTR 108.2 CD – Data Terminal Ready, NC
5 SG 102 AB In/Out Signal Ground
6 DSR 107 CC – Data Set Ready, NC
7 RTS 105 CA In Request to Send, NU
8 CTS 106 CB Out Clear to Send, NU
9 RI 125 CE – Ring Indicator, NC
CH2: RS-232 Connections, DCE
* Functionality might differ from standard
** Direction relative ED-20
NC Not connected
NU Not used
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