Multitech MTS2EA - Page 7

MultiConnect Adapters
Multi-Tech Systems, Inc. Quick Start Guide 7
Pin Functions of the Female End Connector
The following tables explain the pins functions.
External Power With RS-232 Power
Through Pin 6
Signal I/O Signal I/O
Pin 1 CD O Pin 1 CD O
Pin 2 TX O Pin 2 TX O
Pin 3 RX I Pin 3 RX I
Pin 4 DTR I Pin 4 DTR I
Pin 5 GND - Pin 5 GND -
Pin 6 DSR O Pin 6* Power
Pin 7 CTS I Pin 7 CTS I
Pin 8 RTS O Pin 8 RTS O
Pin 9 RI O
Multi-Tech
MultiConnect
Female Connector
Pin 9 RI O
W
arning:
W
hen supplying
powe
r
to the RS-232
connecto
r
, make
s
ure the power does
not feed the DTE
device.
*Pin 6 Input Power and Power Consumption
@ 5V DC: Typical 190mA Maximum 245mA
@ 10V DC: Typical 100mA Maximum 120mA
@ 15V DC: Typical 69mA Maximum 83mA
@ 20V DC: Typical 54mA Maximum 65mA
@ 25V DC: Typical 45mA Maximum 55mA
Pin Functions of the Male End
RS-232
Signal I/O
Pin 1 CD I
Pin 2 RX I
Pin 3 TX O
Pin 4 DTR O
Pin 5 GND -
Pin 6 DSR I
Pin 7 RTS O
Pin 8 CTS I
Pin 9 RI I
Multi-Tech
Male Connector