Images are for illustration only and may differ from components supplied
Link Research Ltd Watford UK
www.linkres.co.uk
CL140023 Issue 03
Quick Start Guide L2150 S (44) 1923 474099
Page 3 of 4
6.
To use as a 70MHz IRD (at a Triax base station)
Connect:
•
70MHz modulated input to RF1 (from L1271 base station)
•
Black and burst (or other local reference) to F/LOCK
•
Audio connectors to AUDIO 1 and AUDIO 2
•
Output connector to SDI or ASI as required
•
Local monitoring to VIDEO
Menu set ups:
Use the enter menu key to enter the menu structure. Press the down arrow to get to the sub menu
heading.
•
Unit menu - in
Mode
select
Single
and press the enter key.
In
Dconv Type
select
None
and press the enter key.
In
LNB Power
select
No
and pres the enter key.
In
Format
select
DVB-S
or
DVB-T
as appropriate.
If there is a valid signal on the input, the
Yellow Status
LED should be on showing the receiver is
locked to the incoming signal. If it is not locked, check the menu settings above again resetting as
needed. Also check that sufficient power is being used to launch the signal on the cable.
•
In
Decoder
menu, go to
Service Name
and check the service name is the same as that set
on the transmitter. Press Enter to confirm.
Go to
Default Service
and set the default service name to the same as the transmitter
Service Name. Press Enter to confirm.
7.
To use as a Triax driver (at Triax remote station)
The L2150 can be used to drive up to 3 services down a Triax cable. For a single service, set the
receiver up as described in stand-alone receiver above.
Additional connections:
•
Connect the modulated 70MHz output to the input of the L1272
•
Connect DC power from the L1272 to the L2150 (must be DC input version)
Menu set ups:
•
In
Unit
menu
Format
select
DVB-T
. Note ~ local monitoring is not available
•
In
Modulator
menu go to
Guard Int
and select
1/32
•
In
Modulator
menu go to
FEC
and select
¾, 5/6 or 7/8
•
In
Modulator
menu go to
Polarity
and select
Norm
•
If in DVB-T mode in
Modulator
menu go to
Width
and select
8MHz
•
In Modulator menu go to Level and adjust output power.
Note the level is adjustable in
1dBm steps from -6dBm to -12dBm.
Use lower power for shorter cable, higher power for
longer or poor quality cable. Max Triax cable length 1½km.
•
In Modulator menu go to Freq and set the output frequency.
Note the frequency range is
adjustable between 65MHz and 75MHz.
•
In
Modulator
menu go to
Output
and set to
On.
The receiver at the Triax base station (L2102 or L2104) will need to be configured with parameters
that match those set on the L2150. The output from the Triax base station is connected to RF1 and
the receiver set to
Single
in the
Mode
sub menu of the
Unit
menu.
