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Female End of the Multi-Tech Adapter
The following tables explain the Multi-Tech Adapter pin functions.
External Power
Signal
IN/OUT
Pin 1 CD
Pin 2 TX
Pin 3 RX
Pin 4 DTR
Pin 5 GND
Pin 6 DSR
Pin 7 CTS
Pin 8 RTS
Pin 9 RI
*Pin 6 Input Power Consumption
@ 5V DC:
@ 10V DC:
@ 15V DC:
@ 20V DC:
@ 25V DC:
When supplying power to the RS-232 connector of the adapter, make sure
Male End of the Multi-Tech Adapter
The following table explains the Multi-Tech Adapter pin functions.
RS-232
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. MultiConnect Serial-to-Ethernet Adapter User Guide (S000344D)
Multi-Tech
Adapter
Female Connector
O
O
I
I
--
O
I
O
O
Typical 190mA
Typical 100mA
Typical 69mA
Typical 54mA
Typical 45mA
Warning:
the power does not feed the DTE device.
IN/OUT
I
I
O
O
-
I
O
I
I
Powered
Through Pin 6
Signal
IN/OUT
Pin 1 CD
Pin 2 TX
Pin 3 RX
Pin 4 DTR
Pin 5 GND
Pin 6*
Power
Pin 7 CTS
Pin 8 RTS
Pin 9 RI
Maximum 245mA
Maximum 120mA
Maximum 83mA
Maximum 65mA
Maximum 55mA
Multi-Tech
Adapter
Male Connector
Chapter 2 – Installation
O
O
I
I
--
I
O
O
11
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