Lantronix XPress DR+ manual Screw Terminal Serial Connectors, RJ45 Serial Connector Pinouts

				Chapter 3: Installation and Hardware
Table 3-1. RJ45 Serial Connector Pinouts				Figure 3-3. RJ45 Connector – Front View
Pin	Direction	Name	Function
1	Output from DR+	RTS	Ready To Send
2	Output from DR+	DTR	Data Terminal Ready
3	Output from DR+	TXD	Transmitted Data
4	Ground	GND	Signal Ground
5	Ground	GND	Signal Ground
6	Input to DR+	RXD	Received Data
7	Input to DR+	DSR	Data Carrier Detected
8	Input to DR+	CTS	Clear To Send

Screw Terminal Serial Connectors

Table 3-2. Serial Screw Terminal Pinout for RS422 (4-Wire)

Pin	Direction	Name	Function
1	Output	TX+	Transmit Data +
2	Output	TX-	Transmit Data -
3	Ground	GND	Signal Ground
4	Input	RX+	Received Data +
5	Input	RX-	Received Data -

Table 3-3. Serial Screw Terminal Pinout for RS485 (2-Wire)

Pin	Direction	Name	Function
1	Bi-directional	TX+/RX+	Transmit Data + and Received Data +
2	Bi-directional	TX-/RX-	Transmit Data – and Received Data -
3	Ground	GND	Signal Ground
4	Not Applicable	Not Applicable	Not Used
5	Not Applicable	Not Applicable	Not Used

Figure 3-4. Screw Terminal Ports

XPress DR+ User Guide 21