RJ45 Ports Signal Description, Pin Signal

2.6 RJ45 Ports – Signal Description

The RS900G series switches have several 10/100BaseTX ports that allow connection to standard CAT-5 UTP cable with RJ45 male connectors. The RJ45 receptacles are directly connected to the chassis ground on the unit and can accept shielded CAT-5 cables. If shielded cables are used, care must be taken to ensure the shielded cables do not form a ground loop via the shield wire and the RJ45 receptacles at either end. Fig. 2.6.1 shows the RJ45 port pins configuration.


	Pin	Signal
	1	+Rx
	2	-Rx
	3	+Tx
	4	No Connection
	5	No Connection
	6	-Tx
	7	No Connection
	8	No Connection
	Case	Shield (Chassis Ground)

Fig. 2.6.1 shows the RJ45 port pins configuration.

NOTE: RuggedCom does not recommend the use of CAT-5 cabling of any length for critical real- time substation automation applications. However, transient suppression circuitry is present on all copper ports to protect against damage from electrical transients and to ensure IEC 61850-3 and IEEE 1613 Class 1 conformance. This means that during the transient event communications errors or interruptions may occur but recovery is automatic.

RuggedCom also does not recommended to use these ports to interface to field devices across distances which could produce high levels of ground potential rise, (i.e. greater than 2500V) during line to ground fault conditions.

Rev104

RS900G specifications

The RuggedCom RS900G is a state-of-the-art industrial Ethernet switch designed to operate in extreme environments, making it an ideal choice for critical applications in sectors such as utilities, transportation, and oil and gas. This switch supports a range of features and technologies that enhance its performance and reliability, ensuring seamless data communication even in challenging conditions.

One of the main features of the RS900G is its robust construction, which allows it to withstand harsh weather conditions, including extreme temperatures, humidity, and exposure to dust and salt. The switch is built to comply with stringent industrial standards, making it suitable for installation in outdoor cabinets and substations. Its rugged design ensures long-term reliability in demanding environments, which is crucial for mission-critical applications.

The RS900G supports Gigabit Ethernet connectivity, providing high-speed data transfer essential for modern network infrastructures. With multiple ports, the switch allows for various network configurations, making it versatile for various applications. The support for Power over Ethernet (PoE) enables connected devices to receive power and data through a single cable, simplifying installations and reducing the need for additional power sources.

In addition to its physical characteristics, the RS900G incorporates advanced cybersecurity features to protect networks from potential threats. It includes features such as Access Control Lists (ACLs), VLAN support, and secure remote management capabilities. These security measures are vital for ensuring the integrity and confidentiality of data transmitted across industrial networks.

The switch is also equipped with rich diagnostics and monitoring capabilities, which enable operators to maintain optimal network performance. Features like SNMP support, event logging, and diagnostic tools help in identifying and resolving network issues promptly, minimizing downtime and maximizing operational efficiency.

In terms of flexibility, the RS900G supports various communication protocols, including Modbus, DNP3, and IEC 61850, which are essential for integrating into existing industrial automation systems. This interoperability is crucial for enhancing communication across different devices and systems within an industrial network.

Overall, the RuggedCom RS900G is an exceptional choice for industries requiring reliable, high-performance networking solutions. Its rugged design, advanced features, and focus on security and monitoring make it a powerful tool for meeting the demands of modern industrial applications.