D-Link DES-2212 manual RS-232 DB9 Pin Specification, E , D B

MII Connector Pin Assignment

Contact	MII Signal	Signal Name	Contact	MII Signal	Signal Name
20	+5 V	Voltage	40	+5 V	Voltage

RS-232 (DB9) Pin Specification

The RS-232 serial port of the hub uses a 9-pin female connector. The port can be connected to a VT-100 type terminal, a PC, or a workstation emulating a VT-100 terminal. The connection can be either local, or remote through a modem. For a remote connection, a modem cable with a 9-pin male connector on the hub side is needed. The figures below show the connections necessary for local and remote connection to 9-pin and 25-pin RS-232 devices.

C on s ole P ort	Te rm in a l/P C S e ria l P ort
(D C E , D B -9 )	(D T E , D B -9 )
D C D (1 )	D C D (1 )
R X D (2 )	R X D (2 )
T xD (3 )	T xD (3 )
D T R (4 )	D T R (4)
S G (5 )	S G (5 )
D S R (6 )	D S R (6 )
R T S (7 )	R T S (7 )
C T S (8 )	C T S (8)
- (9 )	- (9 )

Local Connection to 9-Pin Serial Port

Cables and Connectors 61