2. Installation

2.6. RJ45 Ports: Signal Description

The RS900GP has 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.

Figure 2.9. RJ45 Port Connector

RJ45 Pin

10/100Base-Tx

10/100/1000Base-Tx

1

RX+

A+

 

 

 

2

RX-

A-

 

 

 

3

TX+

B+

 

 

 

4

NC

C+

 

 

 

5

NC

C-

 

 

 

6

TX-

B-

 

 

 

7

NC

D+

 

 

 

8

NC

D-

 

 

 

Table 2.2. RJ45 Ethernet Pin Assignment

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.

RuggedCom® RuggedSwitch™

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RS900GP Installation Guide Rev 100

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RuggedCom RS900GP manual RJ45 Ports Signal Description, RJ45 Pin 10/100Base-Tx 10/100/1000Base-Tx

RS900GP specifications

The RuggedCom RS900GP is a robust and reliable solution designed specifically for mission-critical applications in harsh environments. Developed by RuggedCom, a leader in industrial networking, this device addresses the unique requirements of utilities, transportation, and automation sectors.

One of the standout features of the RS900GP is its rugged design. Built to withstand extreme temperatures, vibrations, and electromagnetic interference, it ensures uninterrupted operation in challenging conditions. The device is built to meet or exceed the rigorous standards of IEC 61850 and IEEE 1613, making it a reliable choice for electric utility substations and other critical infrastructure.

The RS900GP is equipped with multiple Gigabit Ethernet ports, enabling high-speed data transmission and connectivity. Its support for Power over Ethernet (PoE) simplifies installations by allowing a single cable to supply both data and power to connected devices, thus reducing clutter and enhancing flexibility.

Another significant advantage of the RS900GP is its advanced security features. It supports various protocols for secure communication, including IEEE 802.1X port-based authentication and HTTPS for secure web access. This ensures that the network remains protected against unauthorized access and cyber threats, which is increasingly important in today’s interconnected world.

The device also features integrated network management capabilities. RuggedCom's own RuggedCloud software provides users with real-time monitoring and control over their network, facilitating proactive maintenance and troubleshooting. This results in minimized downtime and increased operational efficiency.

In terms of technology, the RS900GP supports both IPv4 and IPv6, ensuring compatibility with future network expansions. Its automation capabilities include support for various industrial protocols like MODBUS and DNP3, allowing seamless integration with existing systems and enhancing overall functionality.

Additional characteristics of the RS900GP include redundancy features such as RSTP and MRP, which provide network resilience. The fanless design contributes to energy efficiency and further supports its longevity in the field.

In summary, the RuggedCom RS900GP stands out as a premium choice for organizations requiring a reliable, secure, and robust networking solution in harsh environments. Its array of features makes it particularly suitable for handling the demands of modern industrial applications.