10/100-8
MODULAR SWITCHED HUB
10/100 Fibre UTP

Features

• Up to 8 ports of any combination of STP or Fibre Optic at 10, 100Mbits to customer specification.
• Dual load sharing power supply
• Optional battery back-up
• System reset button
• Battery isolate button where battery option is fitted
• UTP Auto-negotiating
• Up to 8 Fibre Ports
• Modular Options

Basic Architecture
The system works on the store and forward principle i.e. an input message is stored and then sent to the desired output, the input message being interrogated to determine both its source and destination address.
The source addresses are used to construct an address table such that messages will only be sent to the unique destination port. The hub has to learn the port address from the input messages. Until the address is learnt the message is sent to all ports. If no message is received from that port for a specified time then it is deleted from the address table ( this process is called 'ageing' ). This gives some protection against terminals being moved between ports as it will not be recognized until either a packet is sent from the new port or it is 'aged' out.

Port Auto-negotiation (copper only)
Each port will negotiate with its link partner to be able to connect using the maximum data rate that is mutually achievable, in this order :-
100Mbit Full Duplex
100Mbit Half Duplex
10Mbit Full Duplex
10Mbit Half Duplex

Module options
STP 4 port 10/100 RJ45 connector
STP 1 port 10/100 RJ45 connector
FO 1 port 10 ST connectors
FO 1 port 100 ST or SC connectors

Specification

Power 85~264Vac 50~60Hz 40VA IEC inlet

Indicators Link - green
( all modules) Data - red

Dimensions 268 x 225 x 44

Temperature 0 deg.C ~ 700 deg.C (operating)

Humidity 10% ~ 90% (non-condensing)

Standards IEEE 802.3, IEEE802.3u, IEEE802.3z, CE

Optical Receiver sensitivity better than -32.5dBm avg. for 10-9 BER
Transmitter power (mean optical power) better than -20dBm into 62.5/125um fibre of 0.275NA
Wavelength 830nm (1300nm for 100 Base FX)
Link length in excess of 2km

* For single mode add £25.00

Switched 10/100 Hubs see Switched
10Mbps Hubs see 10Mbps, Micro or ModularFL

For user manual click HERE

VolAmp Ltd
Unit 3, Riverside Business Park, Dogflud Way, Farnham, Surrey, GU9 7SS
Tel 01252 724055 Fax 01252 733425 E-mail: info@volamp.com
www.volamp.com