10/100-4U-FX
TP TO FIBRE OPTIC SWITCHED HUB
FEATURES:
10/100-4U-FX
TP TO FIBRE OPTIC SWITCHED HUB
TECHNICAL DESCRIPTION:
The 10/100-4U-FX is a 5 port switched hub from 10 Base T/100 Base Tx to 100 Base Fx. It has a high speed, non-blocking switch fabric, a high performance address lookup engine and a 1Mbit -frame buffer. The copper interface will automatically sense the Tx and Rx pairs and connect as appropriate, thereby eliminating special cable requirements. Auto negotiation is performed on the copper interface to determine the mode that the hub and its link partner can both achieve to give the highest data transfer rate. This is 100 full duplex (FD), 100 half duplex (HD),10FD and finally 10HD.
100 Tx systems use a three level code, which is scrambled to reduce EMC. It transmits a code as an idle. 10 base T systems use a phase encoded system only transmitting on data, at other times a short pulse, the idle, is transmitted.
The fibre interface conforms to the 100 Fx specification. This is a non-scrambled form of the binary 100 Tx code. Auto negotiation is not specified for fibre and hence must be preset using internal switches. The standard wavelength is 1300nm, which is not in the visible spectrum. It has the advantage that cables have less attenuation at this wavelength. Single mode options are available which will allow transmission over very long distances.
100 Base systems are only capable of transmission to 400m in a normal collision system. Due to minimum packet time, length and transmission delay. This is fundamental to CSMA systems. To operate above this limit a non-collision full duplex system must be used.
Mechanically the unit is housed in a small metal enclosure to limit EMC.
SPECIFICATION:
Copper interface
Conforms to 10 base T or 100 Tx as determined by auto negotiating fully compliant with IEEE802.3, IEEE 802.3u and IEEE 802.3 x standards.
Fibre Interface
| Multimode | Standard wavelength |
1300nm |
| Sensitivity | -31dBm worst case | |
| Output into 62.5um | -20dBm min | |
| Single mode | Wavelength | 1300nm |
| Sensitivity | -31 dBm worst case | |
| Output into 9um | -8 dBm min |
Temperature
| Standard | 0 - 50oC working |
| Extended | -20 - 50oC working |
| -40 - 85oC storage |
| Power Requirements | + 5 to +12v at 4VA |
| Weight | 187 grams |
CONTROLS
|
Switch
|
One
|
|
|
1
|
Unused | |
|
2
|
Flow control
|
Half Duplex (forced collisions flow control). |
| Full Duplex (IEEE 802.3x Paused based flow control). | ||
| On = enable. | ||
|
3
|
Fx Duplex
|
100 Base Fx duplex mode switch - Off full duplex, On half duplex. |
|
4
|
FEFI
|
Far end fault indication switch - On = enable. |
|
Switch
|
Two
|
|
|
1
|
HD Flow Control
|
|
|
2
|
FD Flow Control
|
|
|
3
|
Indicators
|
|
|
4
|
Unused
|
DISPLAY
| Copper | Link / Activity | On = Link / Blink = Activity |
| Duplex / Collision | Blink = Collision / On = Full Duplex | |
| Speed | On = 100Mbps / Off = 10Mbps | |
| Fibre | Link / Activity | Blink = Activity / On = Link |
| Duplex / Collision | Blink = Collision / On = Full Duplex | |
| Power | On - when powered up |
Dimensions
| Height | 27.5 mm |
| Width | 121 mm |
| Length | 60 mm |
ORDERING INFORMATION
| 10/100-4U-FX-(C)-(M)-(T) |
| (C) | Fibre connector | SC or ST | |
| (M) | Mode | Single mode = SM | Multimode = MM |
| (T) | Temperature range | Standard = S | Extended = E |
(Example :- Unit with SC multimode connector and standard temperature range = 10/100U-4U-FX-SC-MM-S)
Power cube is supplied with this unit. This is a switch mode type universal mains 3 pin British plug. Flying lead Euro and USA pin types can be supplied to order. Power input to unit is a coaxial socket inner positive.
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