3Com 3C10220 - Manuals

3Com Support 7 3Com Support For information about these topics: ■ Product Troubleshooting ■ Software Downloads ■ Documentation ■ 3Com Service use your web browser to access this web site: http://support.3com.com/ and look for Network Telephony Products .

10 C HAPTER 1: 3C OM E THERNET P OWER S OURCE O VERVIEW Overview The power source is designed for use with a standard 10BASE-T/100BASE-TX Ethernet network over standard TIA/EIA-568, Category 5 cable. The DC operating power for the data terminal units is fed through the unused pairs (7/8) and (4/5). ...

Front Panel Connections and LEDs 11 Front Panel Connections and LEDs Figure 1 and Figure 2 show the front-panel details of the 24-port and 12-port EPS units. The LEDs are described in later in this section. Figure 1 24-Port Ethernet Power Source — Front View Figure 2 12-Port Ethernet Power Source — ...

12 C HAPTER 1: 3C OM E THERNET P OWER S OURCE O VERVIEW 10/100BASE-TX Data and Power Output Ports The EPS output ports (top row) carry two kinds of transmissions: ■ Ethernet data on the standard two wire pairs on an RJ-45 connector (Transmit on pins 1 and 2; Receive on pins 3 and 6) and ■ DC power o...

Front Panel Connections and LEDs 13 Unit Power Status Indications AC LED DC LED Off Off ■ No AC power supply is plugged into the AC inlet and no redundant DC power supply is connected. or ■ An AC power supply fault has occurred and no redundant DC power supply is connected. On Off ■ An AC power supp...

14 C HAPTER 1: 3C OM E THERNET P OWER S OURCE O VERVIEW Rear Panel Connections Figure 3 shows the EPS rear panel. Figure 3 Ethernet Power Source — Rear Panel Information Label To facilitate reporting any future problem, record here the Part Number (P/N) and Serial Number (S/N) of the EPS from the un...

Guidelines for Network Configuration 15 DC Power Socket The EPS has a 12-pin DC power socket for use only with an optional –24 VDC uninterruptible power supply (UPS). See the documentation that comes with your UPS. The EPS normally draws power from its internal power supplies. If an external DC supp...

16 C HAPTER 1: 3C OM E THERNET P OWER S OURCE O VERVIEW Figure 4 Sample EPS Topology with the NBX 100 Communications System NBX 100 Switch or Hub 3Com EthernetPower Source Wiring ClosetPatch Panel Premises Cabling WallJack

Guidelines for Network Configuration 17 Figure 5 Sample Network Topology with a 3Com Wireless Access Point 3Com EthernetPower Source Wiring ClosetPatch Panel Servers 3Com Wireless Access Point Premises Cabling Laptop withWirelessPCM Card Switch or Hub

Rack-mounting the EPS 21 Rack-mounting the EPS The EPS is 1.5U high (1 U equals 3.8 cm (1.5 inches)) and fits in most standard 19-inch equipment racks. CAUTIONS: ■ Before you connect the brackets or mount the unit in the rack, disconnect all cables and power from the EPS. ■ Verify that no self-adhes...

22 C HAPTER 2: I NSTALLING THE E THERNET P OWER S OURCE AND E ND D EVICES Power-up Sequence The following sections describe how to add power to your EPS and prepare it for operation. Adding Power To add power to the EPS, follow these steps. CAUTION: The EPS has no On/Off switch; the only way to conn...

Selecting the Correct Cables 23 Figure 7 Connecting Other Devices to the Power Source Unit Table 4 and Table 5 list the RJ45 input and output plugs (per port) Table 4 RJ-45 Input Plug (per Port): Switch Side Pin # Label Description 1 TX + Tx data signal to switch or hub 2 TX – Tx data signal to swit...

24 C HAPTER 2: I NSTALLING THE E THERNET P OWER S OURCE AND E ND D EVICES Power Splitter Cable The power splitter cable has a single RJ45 female connector on one end. All eight pins on this connector are connected, either to the power or to data. On the other end, the cable is split into two portion...

Connecting a 3Com Wireless Access Point 25 4 After you make the final connection, check the LCD display on the telephone. Information appears when the telephone attempts to download information from the NBX system. If you see nothing in the LCD display, see “Solving NBX Telephone Problems” in Chapte...

26 C HAPTER 2: I NSTALLING THE E THERNET P OWER S OURCE AND E ND D EVICES When the connection is complete between the EPS and the 3Com Wireless Access Point, verify that: ■ The power LED continues to flash until the Wireless Access Point completes the bootstrap sequence. ■ The Power LED then stays i...

3 T ROUBLESHOOTING Solving EPS Problems If the LEDs on the EPS indicate a problem, see Table 6 for some suggested solutions. Table 6 Solving EPS Problems Problem Possible Cause Suggested Action A Power LED does not light, and you have NO external DC voltage supply. Loose AC power cable ■ Verify that...

28 C HAPTER 3: T ROUBLESHOOTING A Power LED does not light, and you have both AC power and an external DC voltage supply. Both AC power and DC power supplies are faulty. ■ Disconnect the DC power supply, and use the procedures outlined earlier in this table to check for problems with the AC supply. ...

30 C HAPTER 3: T ROUBLESHOOTING Solving NBX Telephone Problems If power is not reaching an NBX Business Telephone, use the information in Table 7 to resolve the problem. Table 7 Solving NBX Business Telephone Problems Problem Possible Cause Suggested Action No characters appear in the telephone LCD ...

Solving NBX Telephone Problems 31 Faulty EPS ■ Follow the procedures described in Table 6 to determine if the EPS is faulty. Telephone receives power, but date and time do not appear in the LCD display. Faulty connection to the NBX Network Control Processor (NCP) in the NBX chassis. ■ Check all conn...

32 C HAPTER 3: T ROUBLESHOOTING Solving Wireless Access Point Problems If power is not reaching a Wireless Access Point, use the information in Table 8 to resolve the problem. Table 8 Solving Wireless Access Point Problems Problem Possible Cause Suggested Action No power to the Wireless Access Point...

Solving Wireless Access Point Problems 33 Faulty EPS ■ Follow the procedures described in Table 6 to determine if the EPS is faulty. The Wireless Access Point is receiving power, but the network indicator (center LED) does not flash. Faulty network connection ■ Check all physical connections between...

A S AFETY I NFORMATION Carefully read and follow this safety information before you install or remove any components or perform any maintenance procedures on the Ethernet Power Source (EPS). WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions car...

36 A PPENDIX A: S AFETY I NFORMATION Important Safety Information ■ Installation and removal of the EPS must be carried out by qualified personnel only. ■ Always connect the EPS to an earth (ground) connection when you connect it to an AC outlet (power supply). ■ To comply with European safety stand...

L’information de Sécurité Importante 37 ■ France and Peru only: – This unit cannot be powered from IT (impédance à la terre) 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 labelled Neutra...

38 A PPENDIX A: S AFETY I NFORMATION que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. ■ Cordon électrique — Il doit être agréé dans le pays d'utilisation: ■ France et Pérou uniquement: Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vo...

Wichtige Sicherheitsinformationen 39 Wichtige Sicher-heitsinformationen ■ Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. ■ Wenn die Ethernet Power Source (EPS) Einheit in einer Stapel mit anderen SuperStack II Hub Einheiten eingebaut werden soll, muß die EPS Einheit...

3Com Corporation L IMITED W ARRANTY 3C OM E THERNET P OWER S OURCE 12-P ORT U NIT (3C10220) AND 24-P ORT U NIT (3C10222) H ARDWARE 3Com warrants this hardware product to be free from defects in workmanship and materials, under normal use and service, for the following length of time from the date of...