Gross data rate |
10 Mbps |
Transmission mode |
Full duplex only |
Nominal range |
1.4km with HPWT-BD00-F4000 and 130mm lenses. See Range
Issues for more details.
The switch or cad has to have well implemented PLL. |
Minimum operating distance |
1/4 of nominal range. Further manual reduction possible by
change of two passive components in receiver. |
Data interface |
IEEE 802.3 Attachment Unit Interface (AUI). Connector male
DB-15 with screws instead of AUI mechanical latch. AUI cable not
supported - integrated cable length 1m. The preamble is chopped off more than
specified by IEEE 802.3 which could cause a problem when Ronja is connected
into a cascade of pure hubs. However hubs almost don't exist today anymore
so it is not a problem. |
Power consumption |
300mA @12VDC (3.6W) from AUI, 2W from external heating power
supply (switchable off) |
Operating wavelength |
visible, 625nm, 100nm spectral width (618nm perceived
wavelength, red-orange) |
Optical output |
17.2mW |
Divergence cone half angle |
1.9mrad (130mm aperture transmitter lens) |
Estimated Optical EIRP |
20kW (130mm aperture transmitter lens, HPWT-BD00-F4000) |
Operating temperature |
-30…+70°C (outdoor part - optical heads, RX, TX),
0…+55°C (indoor part - AUI interface) |
Operating humidity |
up to 100% (condensing) with lens heating on, up to 95% with
lens heating off. |
Weight |
15.5kg (one side of a link, on a welded parallel console) |
Required visibility |
4km for uninterrupted operation at full range. See Distance Issues for more information. |
Optical modulation |
BPSK (as on AUI) plus 1MHz asynchronous 50% duty cycle square
wave between packets. The transmitter appears to shine permanently
and steadily no matter if data pass or not. |
Indicators LEDs |
Power, Receive Packet, Transmit Packet |
Aiming system |
visual, retroreflector for transmitter and DC voltage signal
strength monitor port for receiver. |
Fine aiming gear ratio |
1:300 |
Eye Safety |
Complies with Czech
State regulation: 480/2000 Col. Government Direction about Health Protection
from Non-ionizing Radiation |
Mechanical Installation Constraints |
- Possible mount places:
Place | Is drilling necessary? |
Railing, round or rectangular | No |
Wall | Yes |
Corner of wall | Yes |
Chimney | No |
Horizontal or tilted surface of masonry or masonry covered with
tin, foil etc. | Yes |
Ceiling | Yes |
- Max. 1m from AUI connector is a grounded metal box with
dimensions 160x140x52 mm.
- Cable distance between AUI connector and optical head mounting
points is max. 100m
|
EMI and safety installation constraints |
- Cable may be laid directly along sources of interference (other
signal and power cables)
- Cable doesn't radiate interference
- Optical heads may be mounted even on places where lightning
strike hazard exists.
|