RS-485 Signal

4.1.2 2-Wire Connection Using RJ-45

Most RS-485 devices employ a two-wire, half duplex configuration. When using this configuration, be sure to first set the Model 593/45 to half duplex mode by switching DIP switches and jumpers (refer to sec- tion 3.0 for this configuration)—then use only the transmit (XMT) pair as shown below

593/45 SIGNAL	RS-485 SIGNAL
XMT+	+
XMT-	-

4.1.3 4-Wire Connection Using Terminal Blocks

If you purchased the Model 593/TB, you will need to open the case to access the terminal blocks. The following instructions will tell you how to open the case, connect the bare wires to the terminal blocks, and fasten the strain relief collar in place so that the wires won't pull loose.

1.If the case is not already open, open it now by twisting it open with a small plastic screwdriver.

2.Strip the outer insulation from the twisted pairs about one inch from the end.

3.Strip back the insulation on each of the 2 twisted pair wires about .25 inch.

4.Place the cable through the end plate, and make a small loop in the cable and feed the cable under the tie wrap which is cur- rently installed in the board. When you have completed this assembly it should resemble figure figure 5. Connect one pair of wires to XMT+ and XMT- (transmit positive and negative) on the terminal block, making careful note of which color is positive, and which color is negative.

Figure 5. Model 593/TB, showing Terminal Block & Cable Routing

5.If you are using 4-wire mode, connect the other pair of wires to RCV+ and RCV- (receive positive and negative) on both of the terminal blocks, again making careful note of which color is positive, and which is negative.

Ultimately, you will want to construct a four pair cross over cable that makes a connection with the RS-422/485 device, as shown below.

Model 593/TB		RS-422/-485 Device
SIGNAL	TERMINAL BLOCK	SIGNAL
TXB+	TB (5)	RXB+
TXA-	TB (4)	RXA-
RXB+	TB (1)	TXB+
RXA-	TB (2)	TXA-

4.1.4 2-Wire Connection Using Terminal Blocks

Most RS-485 devices employ a two-wire, half duplex configuration. When using this configuration, be sure to first set the Model 593/TB to half duplex mode by switching DIP switches and jumpers (refer to sec- tion 3.0 for this configuration)—then use only the transmit (XMT) pair as shown below

Model 593/TB	RS-485 Device
XMT+	+
XMT-	-

593/25, 593/45, 593/TB, RS-422, RS-485, 593/45, 593/TB, RS-422, RS-485 specifications

The Patton Electronics series, notably the 593/45, 593/TB, 593/25, RS-422, and RS-485, stands at the forefront of reliable communication technologies. These devices, designed to facilitate seamless connectivity and data transmission, are crucial in various industrial and commercial applications.

The Patton 593/45 is a versatile multi-port serial device server, engineered to convert serial devices into IP-based resources. It supports multiple protocols, allowing for the easy integration of legacy systems into modern networks. One of its standout features is its ability to communicate over long distances without the signal degradation typical of traditional communication methods.

Equipped with robust security features, including SSL and SSH, the 593/45 ensures that data remains protected during transmission. This model also supports virtual COM port functionality which simplifies the workflow for users by allowing them to access devices as if they were connected directly to their computers.

Similarly, the 593/TB model provides tailored functionalities with time-stamping capabilities, enhancing data integrity and management in real-time applications. This is particularly beneficial for industries such as telecommunications and utilities where precise data logging is vital.

The RS-422 and RS-485 standards are integral to the functionality of these devices, providing differential signaling that minimizes noise and allows for communication over significant distances, typically up to 4000 feet for RS-485 networks. RS-422 supports one transmitter and multiple receivers, making it suitable for point-to-multipoint applications, while RS-485 enhances this by allowing multiple devices to communicate over a single twisted-pair cable, fostering a robust networking environment.

Additionally, the 593/25 model offers enhanced port density, further optimizing space and resource use in industrial setups. This feature is essential for users looking to maximize connectivity while reducing hardware requirements.

In summary, Patton Electronics devices such as the 593/45, 593/TB, and 593/25, leveraging protocols like RS-422 and RS-485, provide advanced features for secure, long-distance serial communication. Their design meets the demand for high-performance networking solutions in diverse environments, ensuring that businesses can reliably connect their critical assets and maintain smooth operations across various sectors. With these technologies, users benefit from improved data integrity, efficiency, and security, making Patton Electronics a trusted name in the communication technology landscape.