Link L2150 Quick Start Manual

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 Support + (44) 1923 474099

Page 1 of 4

L2150 Quick Start Guide

Please Note:

- Do not apply power/phantom power to the audio outputs as they will be
damaged. This is an unacceptable way to operate the unit.

- Maintain the level of -20dB max on the inputs. High gain signals can cause

problems.

1. Front panel layout

2. Rear panel layout

Can also be configured with a DC input on a 4 pin XLR socket.

3. Uses for the L2150

The L2150 is used in 4 ways:

• As a stand alone receiver

• As an ASI multiplexer

• As a 70MHz input decoder

• As a driver for a Triax system

4. To use as a stand alone receiver

Connect:

• Two antenna inputs from the down convertors to RF1 and RF2.

• 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

Note 1 ~ early units may
have the audio output
connected via a tag
strip.
Note 2 ~ AUX is the ASI
input for multiplexing

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 Support + (44) 1923 474099

Page 2 of 4

Menu set ups:

Use the enter menu key to enter the menu structure. Press the Move Down Button to get to the
sub menu heading.

• Unit menu - in Mode select Diversity and press the enter key.
In Dconv Type select appropriate type and press the enter key.
In LNB Power select Yes and pres the enter key. The down convertor LED’s should come on
and the first two boxes on the top left of the LCD display should have 9 showing in them.
In Format select the required output format (ASI, DVB-T or DVB-S). Note SDI and

baseband video are only output if DVB-S is selected.

• Input Frequency – Go to OFDM 1 sub menu and select Input Frequency. Use the
left/right/up/down keys to set the correct frequency. Press Enter to confirm.
If a Link Research down convertor is being used check in the D Conv LO sub menu that

1.84GHz is displayed. If using a non Link Research unit, set the local oscillator to the
Manufacturer’s recommended frequency and press Enter to confirm.

If there is a transmitter operating on the input frequency and within range, the Yellow
Status LED should be on showing the receiver is locked to the incoming signal and the
Status menu will show the input signal strength. If it is not locked, check the menu

settings above again resetting as needed.

• 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.

• If ASI is the output format, go to the Multiplexer menu. In the ASI OP sub menu set the
packet size as required. In the Bitrate sub menu set the bitrate to a suitable figure. In the

Network sub menu set the network name as required.

The system should now be working correctly.

Errors and warnings

• Down convertor LED’s should be

orange. If they are red, an error condition exists. Switch
off the receiver or remove the coax cable and then switch on or replace the cable. The
LED should be orange. If the receiver has been power cycled, remember to go to the Unit
menu and turn the LNB Power to Yes.

• Alarm LED is lit and DEC is flashing on the LCD. No service has been selected or no service
can be detected. Go to the Decoder menu and use the Service Name sub menu to select
the service name.

• Check that the transmitter is transmitting. The green RF LED must be lit.

• If OVF is flashing on the LCD, the input buffers are overflowing. Reboot the receiver. If

the error message still persist go to the Memory menu and select Default Restore, Yes and
then re-enter the set up as described above.

5. To use as an ASI multiplexer

Note – Any Link Research receiver can be used in this mode.

Connect:

• The cables as for a stand alone receiver

• An ASI input to the AUX connector

Menu set ups:

Use the enter menu key to enter the menu structure. Press the down arrow to get to the sub menu
heading.

• Go to ASI Input 3 menu and check that the incoming signal is locked. If it is not check that
it is being correctly formatted at source.

• Go to the Multiplexer menu and in the Bitrate sub menu, set the bit rate to an appropriate
figure.