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Pin Functions of the Female End Connector
The following tables explain the pin functions.
External Power
Signal
IN/OUT
Pin 1 CD
O
Pin 2 TX
O
Pin 3 RX
I
Pin 4 DTR
I
Pin 5 GND
--
Pin 6 DSR
O
Pin 7 CTS
I
Pin 8 RTS
O
Pin 9 RI
O
*Pin 6 Input Power Consumption
@ 5V DC:
@ 10V DC:
@ 15V DC:
@ 20V DC:
@ 25V DC:
When supplying power to the RS-232 connector, make sure the power does
Pin Functions of the Male End
The following table explains the pin functions.
Signal
Pin 1 CD
Pin 2 RX
Pin 3 TX
Pin 4 DTR
Pin 5 GND
Pin 6 DSR
Pin 7 RTS
Pin 8 CTS
Pin 9 RI
Multi-Tech Systems, Inc. Serial-to-Serial Device Server User Guide (S000354C)
Multi-Tech
MultiConnect
Female Connector
Typical 190mA
Typical 100mA
Typical 69mA
Typical 54mA
Typical 45mA
Warning:
not feed the DTE device.
RS-232
IN/OUT
I
I
O
O
-
I
O
I
I
Signal
Pin 1 CD
Pin 2 TX
Pin 3 RX
Pin 4 DTR
Pin 5 GND
Pin 6*
Pin 7 CTS
Pin 8 RTS
Pin 9 RI
Maximum 245mA
Maximum 120mA
Maximum 83mA
Maximum 65mA
Maximum 55mA
Multi-Tech
Male Connector
Chapter 2 – Installation
Powered
Through Pin 6
IN/OUT
O
O
I
I
--
Power
I
O
O
10
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