Multitech MultiConnect - LED Indicators; RS-232 9-Pin Connector Pinout

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 10
LED Indicators
Name Description
ACT Activity – Lit when data is being transmitted or received.
STS Status – Blinks to indicate that the unit is functioning.
RS-232 9-Pin Connector Pinout
Pin 1
Pin 5
Pin 6
Pin 9
Pins for the Serial-to-Serial Adapter when Power Is Supplied Externally
Pin Description
1 DCD
2 RX Data
3 TX Data
4 DTR
5 Ground
6 DSR
7 RTS
8 CTS
9 RI
Pins for the Serial-to-Serial Adapter when Power Is Supplied Through the RS-232 Pin
Pin Description
1 DCD
2 RX Data
3 TX Data
4 DTR
5 Ground
6 Power
7 RTS
8 CTS
9 RI