COBHAM OMU I User Manual

OPTICAL MASTER UNIT MARK I
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage Date: 4-Jan-18 www.cobham.com/wireless
Document number:A1829300UM Rev. 3.1
Page | 29
NOTE: Earlier
repeater versions
If the OMU is connected to
repeaters of an earlier release,
which has a fibre optic converter of
the type in the photograph, these
commands will not work.
Instead a default value needs to be
defined by using the command
OLC.
Please see OMU Command and
Attributes for more detailed
information regarding this
command.
The OLC value should be set to 6dB. This value ensures that the
amplification value on the link will be 0dB at 0dB optical loss.
Example
SET OLC 1:2 6
Adjusts the attenuation in the fibre optic converter unit in rack 1, slot 2 to 6
dB.
Go through all racks and slots that are connected to a repeater of this kind
and send this command.
Continue with the
repeaters
Cho
ose “Actions/Perform Optical Loss Adjustment” from the drop down
menu.
The system will respond with a description as below.
This command does not exist in repeaters with the earlier type of fibre optic
converters, equivalent to the note above regarding OLC. For these repeaters
disregard this step.

COBHAM OMU I Specifications

General

Brand	COBHAM
Model	OMU I
Category	Network Hardware
Language	English