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Ethernet Power Supply 3CNJPSE24 User s Guide...
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3Com Corporation. 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
Ethernet infrastructures. In addition, you should: — Have a working knowledge of basic electronics and mechanical assembly as well as an understanding of related local building codes. — Be familiar with local operating and troubleshooting procedures. Ethernet Power Supply User s Guide...
Hours of operation are subject to change. See Support from 3Com later in this section. Online Technical Services 3Com offers worldwide product support 24 hours a day, 7˚days a week, through the following online systems: • World Wide Web site •...
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3Com FTP Site Download drivers, patches, software, and MIBs across the Internet from the 3Com public FTP site. This service is available 24 hours a day, 7 days a week. To connect to the 3Com FTP site, enter the following information into your FTP client: •...
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Details about recent configuration changes, if applicable Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain an authorization number. Products sent to 3Com without authorization numbers will be returned to the sender unopened, at the sender s expense.
Introduction to the Ethernet Power Supply This chapter contains introductory information about the Ethernet Power Supply and how it can be used in your network. It covers the following topics: About the Ethernet Power Supply Ethernet Power Supply Front View Detail...
Ethernet Power Supply begins to turn off ports starting from port 24 down until the power is again inside the limit available. These ports resume operation when power is again available.
Ethernet Power Supply Front View 10/100BASE-TX Data & Power Output Ports, Upper 24 Ports The Ethernet Power Supply has 24 Data & Power ports configured as Media Dependent Interface (MDI) non-crossover. These ports are designed to carry Ethernet data over the standard 2-wire pairs (RJ-45 pins 1/2 and 3/6) and DC power source over the spare wire pair (RJ-45 pins 4/5 and 7/8).
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See Table 1 for additional information. NOTE: In the event that an Ethernet device that is not Power Over LAN enabled is connected to the Ethernet Power Supply (indicated by the orange color or off), the Ethernet device is unaffected because power is not being supplied.
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Introduction to the Ethernet Power Supply Ethernet Power Supply Status Indications The following tables contain Ethernet Power Supply status information as presented on the front panel by the LED indicators during normal operation. Table 1 Power Active (Green) and Power Not Active (Orange) -...
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Introduction to the Ethernet Power Supply Table 2 Main Power Status Indications LED Color Main Power Status AC - Off Internal power supply unit is unplugged or faulty. AC — Green Indicates AC power input active. AC - Green Internal power supply...
Ethernet Power Supply Rear View Detail Figure 2 Ethernet Power Supply Rear View AC Power Receptacle The Ethernet Power Supply automatically adjusts its power setting to any supply voltage in the range 100—240V AC (60/50 Hz). ~ ~ ~ ~...
Installing the Ethernet Power Supply Installing the Ethernet Power Supply Verifying Kit Contents Unpack the kit and verify that the Ethernet Power Supply and user s guide (this manual) are present. Recording Identification Information Before proceeding with the Ethernet Power Supply placement and installation, record the serial number for future reference.
The Ethernet Power Supply then runs through its power-on self-test (POST), which takes less than 10 seconds. During the POST, all ports on the Ethernet Power Supply are disabled and the LEDs light in the following sequence: 1) The AC LED lights.
Installing the Ethernet Power Supply Connecting Cables to the Ethernet Power Supply All ports on the front of the Ethernet Power Supply are configured as data "route-through" ports for all data wires (pins 1, 2, 3, and 6). Be sure to use a standard Category 5 straight-through cable including all 8 wires (4 pairs).
Ethernet Power Supply to its power source. ~ ~ ~ ~ WARNING The Ethernet Power Supply chassis is intended to be grounded. Ensure the power host is connected to earth ground during normal use. Ethernet Power Supply User s Guide...
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~ ~ ~ ~ WARNING For shelf-mounted equipment, make sure the surface is stable and strong enough to support the equipment. Do not stack more than four Ethernet Power Supply units on top of one another. ~ ~ ~ ~ WARNING Ultimate disposal of this product should be handled according to all national laws and regulations.
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Appendix A — Safety Information Installation and removal of the Ethernet Power Supply must § be carried out by qualified personnel only. Power Cord Set: § The power cord must be approved for the country in which it is used: §...
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This unit cannot be powered from IT supplies. If your supplies are of IT type, this unit must be powered by 230V (2P+T) via an isolation transformer ratio 1:1, with the secondary connection point labeled Neutral, connected directly to earth (ground). Ethernet Power Supply User s Guide...
Appendix B — Technical Specifications Technical Specifications Overview This appendix lists Ethernet Power Supply hardware and electrical specifications. Hardware Specifications Physical Specifications Height: 44mm, 1.75 in. Dimensions Width: 433mm, 17 in. Depth: 302mm, 11.9 in. Weight 4.0 Kg (8.8 lb)
Power Supply setup and functionality. This section provides a problem and resolution sequence to assist in troubleshooting minor operating problems. If the provided resolutions do not solve your problem, call 3Com for further assistance. If you encounter problems, make sure: —...
If the LEDs light in the correct sequence, and the AC LED the Ethernet Power Supply is fully is orange. operational. If the problem remains following the POST sequence, the Ethernet Power Supply POST detected an internal fault. Contact 3Com. Ethernet Power Supply User s Guide...
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Appendix C — Troubleshooting Problem Resolution The Ethernet Power Supply did not detect The "Port LED a connected end device and therefore the on one port is port is not providing power. Verify that: not lit and the corresponding •...
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Ethernet Power Supply and connect to one of the ports using a short cable. If this works, there is probably a faulty connection or short on the long cable, or one bad RJ-45 connection along the line. Ethernet Power Supply User s Guide...
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If this works, there is probably a faulty "Data & Power & Power" or "Data" port in the Ethernet Power Supply or a bad RJ-45 connection One of the ports Re-connect the end device to a different is powering an "Data &...
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3Com or its authorized reseller: One (1) year 3Com s sole obligation under this express warranty shall be, at 3Com s option and expense, to repair the defective product or part, deliver to Customer an equivalent product or part to replace the defective item, or if neither of the two foregoing options is reasonably available, refund to Customer the purchase price paid for the defective product.
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Responsibility for loss or damage does not transfer to 3Com until the returned item is received by 3Com. 3Com will retain risk of loss or damage until the item is delivered to Customer. For non-US Customers, the word ’prepaid’ shall be omitted where this requirement is not permitted by law.
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LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF THIS˚PRODUCT. 3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT OR MALFUNCTION IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT, IMPROPER...
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Changes or modifications not expressly approved by 3Com could void the user s authority to operate this equipment.
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2001 3Com Corporation. All Rights Reserved P/N: 09-2194-000 November 2001...