Transition Networks E-PSW-TX-02 manuale d’uso

TRANSITION NETWORKS’ POCKET SWITCH TECHNICAL SPECIFICA TIONS Standards IEEE 802.3, IEEE 802.3u Dimension 4.75" X 5.75" X 1.0" (120mm x 146mm x 25mm) Power Supply NOTE: Replace power supply only with the equivalent input rating (see below) and output rating (regulated 12VDC at 1.5 A). TN PN Requirement Location 3507 240 volts, 50 he[...]

100BASE-FX Cable and Connector Specifications The physical characteristics of the 100BASE-FX cable must meet or exceed IEEE 802.3u 100BASE-FX specifications. 100BASE-FX CABLE SPECIFICATIONS Fiber Optic Cable Recommended: 62.5 / 125 µm multimode fiber Optional: 100 / 140 µm multimode fiber 85 / 125 µm multimode fiber 50 / 125 µm multimode fiber [...]

ETHERNET CABLE SPECIFICA TIONS 10BASE-T/100BASE-TX Cable and Connector Specifications The physical characteristics of the 10BASE-T /100BASE-TX cable and connectors must meet or exceed IEEE 802.3/802.3u specifications. 10BASE-T CABLE SPECIFICATIONS Category 3 wire or better is required; category 5 wire (See 100BASE-TX) is recommended. Either shielde[...]

1. INTRODUCTION This guide is intended for the system or network administrator responsible for installing and monitoring a Transition Networks’ pocket switch. A working knowledge of local area network (LAN) operations, including familiarity with communications protocols used on interconnected LANs, is assumed. T ransition Networks’ Pocket Switc[...]

The Evolving Ethernet Network Installing one Transition Networks’ pocket switch alone improves network performance. Installing additional Fast Ethernet equipment (and, optionally, installing additional Transition Networks’ pocket switches) can optimize network performance. A network evolution from legacy Ethernet to legacy Ethernet and Fast Eth[...]

Network Flexibility The Transition Networks’ pocket switch can assist a network administrator in maintaining existing resources as the network evolves from shared legacy 10Mb/s Ethernet to switched 100Mb/s Fast Ethernet because a pocket switch can function as : • A 2-port bridge in the legacy 10BASE-T environment • A connection between the le[...]

4. OPERA TION The Transition Networks’ pocket switch requires no operator intervention beyond occasionally monitoring LED status indicators. POWER Steady green LED indicates connection to external AC power. NOTE: The port LED indicators provide separate data for each port. 100 (MB/S) Steady green LED indicates that port transmits and receives at [...]

Increasing Bandwidth by Segmenting 10BASE-T Collision Domain The Transition Networks’ pocket switch adapts to the fact that each Ethernet network device (station) is connected independently to the shared Ethernet signaling system, called the network medium. Each station transmits serially over the shared medium to every other attached station . A[...]

Installing Network Cable (continued) Connecting Fiber Cable to TX/RX Connectors (100BASE-FX) Effective cable distances are determined by ambient RF noise and by signal loss in the cable. Since fiber has a low signal loss/meter and is invulnerable to RF noise, fiber can be used to extend distances. OPTICAL POWER LOSS BUDGET An 11dB loss budget, as m[...]

Doubling Bandwidth by Installing Full-Duplex NOTE: The 10BASE-T specification requires two dedicated twisted copper wire pairs for data transmission and reception. This allows twisted pair copper cable to be used either in half-duplex or full-duplex mode. Legacy CSMA/CD Ethernet is Half-Duplex Legacy Ethernet is a half-duplex communications system [...]

Installing Network Cable (continued) Straight-Through/Crossover (10BASE - T /100BASE - T X ) The most popular wiring used today, unshielded twisted-pair copper cable, is used for 10BASE-T and for 100BASE-TX. As with 10BASE-T, the transmit and receive data signals on each pair of a 100BASE-TX segment are polarized, with one wire of each signal pair [...]

Increasing Bandwidth T en-fold by Installing 100BASE-TX (Fast Ethernet) Fast Ethernet, 100BASE-TX or 100BASE-FX on the Transition Networks’ pocket switch, moves signals at 100 Mb/s, ten times faster than legacy Ethernet. Legacy Ethernet and Fast Ethernet Since 100BASE-TX Fast Ethernet is an extension of the existing Ethernet IEEE 802.3 standard t[...]

The Transition Networks pocket switch can be installed to provide one 10BASE-T switched port and one 100BASE-TX switched port. Auto-Negotiation The 100BASE-TX standard includes automatic speed and duplex mode sensing as part of the Auto-Negotiation function. When two Auto- Negotiation devices with multiple capabilities are connected together, they [...]

Increasing Network Distance by Installing 100BASE-FX Fiber Fast Ethernet, 100BASE-FX, can be used for links to the Transition Networks’ pocket switch, particularly between buildings or where the 100 meter distance limitation of copper Fast Ethernet, 100BASE-TX, must be exceeded. Signals move over fiber 10% faster than over copper. The 100BASE-FX [...]

Setting DIP Switch NOTE: The Auto-Negotiation system is designed so that a twisted-pair link will not become operational until matching capabilities exist at each end. T he Auto-Negotiation protocol is NOT able to test the cable . The installer must ensure that the correct cable type is installed to support the highest speed and mode of operation t[...]

2. SITE CONSIDERA TIONS The site for the Transition Networks’ pocket switch must provide: • AC power outlet for each Transition Networks’ pocket switch • Adequate ventilation • Standard environmental conditions • Isolation from electrical noise, including radio transmitters and broadband amplifiers, motors, high power electrical lines, [...]