Perle Systems 5500152-23 manual DB25 connector box, DB25 Pin, EIA-232, EIA-422, EIA-485

DB25 connector box

Note

The UltraPort connector box cable needs to be secured or supported in case of sudden contact or excessive weight on the cables. Please ensure that adequate caution is taken to avoid possible damage to the UltraPort card or Host system. This can be accomplished by securing the cable to a rack or to the back of the server.

DB25 Pin	EIA-232	EIA-422	EIA-485
1 & Shell	C-GND	C-GND	C-GND
2	TXD	TXD-	TXD-/RXD-
3	RXD	RXD+	RXD+
4	RTS	RTS-	NC
5	CTS	CTS+	NC
6	DSR	RXD-	RXD-
7	S-GND	S-GND	S-GND
8	DCD	CTS-	NC
20	DTR	TXD+	TXD+/RXD+
22	RI	RTS+	NC

UltraPort Serial Adaptors User Guide	Chapter 3 Cabling information
Connector box and cable pinouts	Page 124