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Focus on DCS, PLC, robot control system and large servo system.
Main products: various modules / cards, controllers, touch screens, servo drivers.
Advantages: supply of imported original products, professional production parts,
Fast delivery, accurate delivery time,
The main brands include ABB Bailey, Ge / fuanc, Foxboro, Invensys Triconex, Bently, A-B Rockwell, Emerson, ovation, Motorola, xyvom, Honeywell, Rexroth, KUKA, Ni, Deif, Yokogawa, Woodward, Ryan, Schneider, Yaskawa, Moog, prosoft and other brands
| EL3040 02402893521100 |
The STACK DOWN LED indicates the state of the connection to the switch stack up connector, as described in Table 3‐4. CPU LED The CPU LED indicates the status of the system operation, as described in Table 3‐5. Table 3-4 DOWN LED Definitions Color State Recommended Action Off No valid connection to switch stack up connector. 1. Make sure the switch connected to the stack up connector is powered on. 2. Replace cable with a known good one. 3. If the problem still exists, contact Enterasys Networks for technical support. Green Solid. Valid connection to switch stack up connector. None. Blinking. Information is being transferred through the stacking cable. None. Table 3-5 CPU LED Definitions Color State Recommended Action Off Power disconnected. If the LED remains off after connecting AC power or DC power from an RPS, check the following: 1. Make sure there is power at the power source (AC source and RPS if applicable). 2. Replace the power cord with a known good one or check the continuity of the power cord. 3. If the switch still does not power up, the system may have a fatal error. Contact Enterasys Networks for technical support. Red Solid. Boot-up failed. If the LED remains red for several minutes, the system may have a fatal error. Contact Enterasys Networks for technical support. Blinking. Diagnostics have failed. Contact Enterasys Networks for technical support. Amber Solid. Diagnostics are running. If the LED remains amber for more than several minutes, contact Enterasys Networks for technical support. Blinking. Code image is being downloaded, or the Manager switch is copying its configuration to the other members in the stack. (This happens automatically every 15 minutes and every time the save config command is executed. None. Checking the LEDs Enterasys A4 Fast Ethernet Switch Hardware Installation Guide 3-5 Link/Activity LEDs Table 3‐6 describes the status of RJ45 and SFP port LEDs. Green Solid. System is fully functional. None. Blinking. Boot-up in process. None. Table 3-5 CPU LED Definitions Color State Recommended Action Table 3-6 Port LED Definitions Color State Recommended Action Off No link. None. No activity or port in standby. None. Cable is faulty. Replace cable. Green Solid. Port is linked, but the interface is not receiving any traffic. None. Blinking. Port is linked and traffic is being received or transmitted by the interface. None.
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