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137001UA
A-2
Appendix
PATTON
ELECTRONICS CO.INSTALLATION AND OPERATIONS MANUAL
3012-14-18/V24
Typical Application
RS-232 Pin Out
Leased
or
Dial Line
V.24 MODEM
V.24
V.24
V.24
V.24
1
2
3
4
5
6
7
8
9
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12
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24
25
Shield (common)
Transmit Data (from DTE)
Receive Data (from DCE)
Request to Send (from DTE)
Clear To Send (from DCE)
Data Set Ready (from DCE)
Si
g
nal Ground (common)
Data Carrier Detect (from DCE)
Transmit Clock (from DCE)
Receive Clock (from DCE)
D ata Terminal Ready (from DTE )
Rin
g
In dica tor (from D CE )
External Transmit Clock (from DTE)
Positive Test Volta
g
e (from DCE)
Ne
g
ative Test Volta
g
e (from DCE)