Key Features
- large antenna cable distances (up to
2000mtrs.)
- no destructive overvoltage via the
antenna cable
- no unintentional monitoring possible
via optical fiber
Description
The DOAL/A module mounts indoors, and
connects to a Meinberg DCF antenna (AI01, AW02 or
AK03) with a short coaxial cable. The DOAL/R
module connects to the receiver’s antenna input
either directly or with a patch cable. Both modules
are linked to each other by a single GI50/125μm
or GI62.5/125μm multimode gradient fiber. This
Fiber Optic connection provides several
advantages:
The DOAL system is suitable for all Meinberg DCF
receivers, and can be retrofit to existing Meinberg
DCF77 systems. The DOAL/A antenna module requires an
external power supply to operate the DCF77 antenna.
The DOAL/R receiver module is powered by the DCF
receiver and does not require an external power
supply.
Characteristics
| Type of
antenna: |
Input for a Meinberg DCF77
antenna (77,5 kHz) via coaxial cable |
| Optical
Outputs: |
ST connector for GI
50/125µm or GI 62,5/125µm gradient
fibre,
Wave length: 850nm,
Launchable optical output power: typ. 15µW
(into GI 62,5/125µm),
Optical input level: min. 3µW |
| Physical
dimensions: |
DOAL/A: 44mm x 105mm x
165mm (height x width x depth)
DOAL/R: 25mm x 25mm x 95mm (height x width x
depth) |
| Electrical
connectors: |
optical ST connector
female BNC
Power Supply (DOAL/A only) |
| Power
supply: |
DOAL/A: 100 - 240VAC /
50/60Hz
optional: 18 - 72VDC
power consumption: 5W max. |
| Form
Factor: |
DOAL/A: black eloxadized
aluminium housing, with aluminium front and rear
panel
DOAL/R: aluminium HF housing
protection class: IP30 |
| Ambient
temperature: |
-25 ... 65° C |
|
Humidity: |
Max. 85% |
| RoHS-Status of the
product: |
This product is fully RoHS
compliant |
| WEEE status of the
product: |
This product is handled as
a B2B category product. In order to secure a WEEE
compliant waste disposal it has to be returned to
the manufacturer. Any transportation expenses for
returning this product (at its end of life) have
to be incurred by the end user, whereas Meinberg
will bear the costs for the waste disposal
itself. |
|
