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Appendix D
I = Input, O = Output, N/A = Not Applicable, N/C = Not Connected
61202070L4-20
Connector Pinouts
Table D-1. IBM/AT Style EIA-232 Interface
Pin
Name
1
CD
2
RD
3
TD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
Pin
4
5
Express L128FP User Manual
I/O
Description
N/C
Carrier Detect
O
Receive Data
I
Transmit Data
N/C
Data Terminal Ready
N/A
Signal Ground
N/C
Data Set Ready
I
Request to Send
O
Clear to Send
N/C
Ring Indicator
Table D-2. RJ-49C ISDN
Description
Ring
Tip
D-1
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