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Appendix E. Connector Pinouts
Pin
Name
20
DTR
22
RI
PIN 1
PIN 14
Pin
Name
1
Shield
2
RD
3
TD
4
RTS
5
CTS
7
SG
8
CD
20
DTR
88
I/O
I
Data Terminal Ready
O
Ring Indicator
I = Input O = Output
PIN 25
I/O
I/O
Shield for cable
O
Received Data
I
Transmitted Data
O
Request to Send
I
Clear to Send
I/O
Signal Ground
I
Carrier Detect
O
Data Terminal Ready
I = Input O = Output
Express XRT User Guide
Table E-A
RS-232 Interface
Description
PIN 13
MALE
Figure E-2
Modem Interface
Table E-B
Modem Interface
Description
61202.153L3-1
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