Pin Functions Of The Female End Connector; Pin Functions Of The Male End - Multitech MTS2EA Quick Start Manual

Pin Functions of the Female End Connector

The following tables explain the pins functions.
External Power Multi-Tech
MultiConnect
Female Connector
Signal I/O
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
Warning: *Pin 6 Input Power and Power Consumption
When supplying @ 5V DC: Typical 190mA Maximum 245mA
power to the RS-232 @ 10V DC: Typical 100mA Maximum 120mA
connector, make @ 15V DC: Typical 69mA Maximum 83mA
sure the power does @ 20V DC: Typical 54mA Maximum 65mA
not feed the DTE @ 25V DC: Typical 45mA Maximum 55mA
device.

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 Systems, Inc. Quick Start Guide
MultiConnect Adapters
With RS-232 Power
Through Pin 6
Signal I/O
Pin 1 CD O
Pin 2 TX O
Pin 3 RX I
Pin 4 DTR I
Pin 5 GND -
Pin 6* Power
Pin 7 CTS I
Pin 8 RTS O
Pin 9 RI O
Multi-Tech
Male Connector
7