1. We are a global trading company, we have a large stock of spare parts, we also produce energy storage batteries

2. Our main sales products are industrial automation control equipment accessories, such as: controller board, processor module, communication module, input and output module, power module (various circuit boards and cards), touch screen, servo driver, servo motor, sensor, cable......

3. We can not only provide new products, but also supply cold and discontinued spare parts, all the discontinued parts will go through strict testing to ensure the reliability of product performance, so that customers can buy and use at ease

4. For more information, please contact us: Contact: Amy | Email: saul01@qq.com | Tel(WhatsApp/Wechat): +86-15359298283

A4 Series Ethernet Switches The following A4 Series Ethernet switches have been tested and certified by Invensys for use with MESH and other I/A series products:

♦ 24-port copper management switch (P0973JM) with two fixed 10/100/1000 copper uplinks (ISL) and two 1 Gb fiber/copper uplinks (optional)

♦ 24-port Fiber Management switch (P0973JN) with two fixed 10/100/1000 copper uplinks (ISL) and two 1 Gb fiber/copper uplinks (optional)

8-port copper / 8-port Fiber Optic Management switch (P0973JP) with two fixed 10/100/1000 copper uplink (ISL) ports and optional two 1 Gb fiber/copper uplink (IS-L)

These switches are best suited for:

Linear, ring, and star topologies for small or medium-sized networks, as discussed in the introduction to the MESH Control Network Architecture Guide (B0700AZ).

♦ Star topology described in "Network Topology" in the Control Network User's Guide (B0400DV). The switch description is followed by visual indicator information on the front of each switch, and the cabling requirements available for the uplink (ISL) module and its uplink (ISL) port.

The 24-port copper cable management switch (P0973JM) provides 24 100Base-TX ports with RJ-45 connectors, two fixed 10/100/1000 stack/uplink (ISL) ports, and two 1000Base-TX port-X uplinks (ISL) Gigabit (SFP1) port. Two 1000Base-X uplink (ISL) Gigabit (SFP) ports can be fitted with MGBIC Uplink (ISL) connector modules (P0972WT, P0972WU, P0972YQ, P0972YL, P0973JD, or P0973FT). The switch allows high-performance, full-featured Layer 2 Ethernet switching in small to medium network applications, as well as high-performance direct terminal station connectivity.

The A4 Series (P0973JM/P0973JN/P0973JP) switches support power redundancy when connected to an optional External Redundant Power Module (RPSM) (P0973BP). If the internal power supply fails, the RPSM takes on the full load of the switch without interrupting network traffic. The switch's internal power supply and RPSM each have their own AC power connection, which allows each power supply to be connected to a different AC power circuit to provide additional AC power redundancy. As shown in Figure 1-4, the additional maintenance board of an A4 series switch does not work and cannot support redundant internal power supplies. Adding an additional internal power supply disrupts the internal thermal characteristics and reduces the overall thermal specification of the switch (0 to +50°C (32°F to 122°F)). A4 series switches do not support this function.

ENTERASYS A4H124-24TX P0973JM Ethernet switch

ENTERASYS A4H124-24TX P0973JM Ethernet switch

ENTERASYS A4H124-24TX P0973JM Ethernet switch

ENTERASYS A4H124-24TX P0973JM Ethernet switch

ENTERASYS A4H124-24TX P0973JM Ethernet switch

ENTERASYS A4H124-24TX P0973JM Ethernet switch