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1
Received data (Rx)
2
Transmitted data (Tx)
3
Clear to send (CTS)
4
Request to send (RTS)
5
6
Signal ground
7
Received line signal detect
8
Reserved for testing
9
Reserved for testing
10
11
Sec. Rx line signal detect
12
Sec. Request to send
13
Sec. Rx data
14
Transmitter signal timing
15
16
Rx signal timing (DCE source)
17
Local loopback
18
Sec. Clear to send
19
20
Remote loopback
21
Ring indicator
22
Data signal rate selector
23
Tx signal timing (DTE Source)
24
25
W102 / Rev. B
857-164688 / E
Generic RS-232 serial line (DCE)
This cable described the pin configuration for an RS-232
interface. The Data Circuit terminating Equipment (DCE) end is
shown.
Shield
DCE Ready
Unassigned
Sec. Tx data
DTE Ready
Test mode
RS-232 serial line (DCE )
Conductors
Screen
Voltage
Max.diameter
25-pin D-sub connector
Original and complete RS-232 signal
definition shown. The most commonly
used signals are shown in bold.
(DCE = Data Circuit terminating equipment)
13
25
Looking into a female 25-pin D-pin connector
25 x 1 x 0.5 mm2
Overall braided
60V
Set by the plugs
Drawing file
1
14
109
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