Drake LBS2250 User Manual

LBS2250 L BAND SWITCH

TM

L B AND OUTPUTS 9 50 - 2250 MHz

LBS2250 L B AND SPLITTER / LNB SWIT CH / OUTPUT COMBINER

POWER/

PROGRAM

PRODUCT DESCRIPTION and INSTALLATION

The LBS2250 is a ten way, 1 GHz, output combiner AND a
2 input / 10 output L band, amplified, multi-switch in the
same chassis. In addition, it also contains two power
inserters to supply power to two LNBs. This allows a single
1RU tall unit to replace both the previous output combiner
and L band cable management panel in systems utilizing
the SCTx860 family of transcoders, saving 1RU per tray of
transcoders.

The LBS2250 is intended for use with the SCT1860,
SCT2860, SCT3860, and SCT4860 transcoders that are
mounted in the RMT150 rack mounting tray. The LBS2250
is powered and controlled by the PS151 power supply that
will be powering the rack of transcoders. The LBS2250
should be mounted just above the RMT150. The
LBS2250 provides an efficient means of connecting the
LNB to the front input connectors on the SCTx860s.

Because of the amplification in the LBS2250 L band
multiswitch, use of the LBS2250 eliminates the need for
separate LNB power inserters or amplifiers. The LBS2250
has approximately unity gain from a L band LNB input to
the rear panel loop output for that input. This allows ‘daisy
chaining’ through several LBS units without loosing any
level. It is not necessary to terminate the L band output, if
not used, but it may be desirable to do so to prevent any
undesired RF leakage from that port.

The LBS2250 has a nominal 5 dB level drop from a LNB
input to any of the front panel L band outputs.

LBS2250. Connect the PS151 to the Power Input socket
on the rear of the LBS. Then connect another power
supply cable between the LBS Power Output and the
transcoder. One of these power cables is provided with the
transcoder and one is provided with the LBS2250.

When the LBS is connected to the PS151, as per the
above paragraph, the PS151 will recognize the LBS and
provide an additional menu screen in each SCT connected
to the same PS151. This will allow programming that input
for either the A LNB or the B LN B. As the LB S selection is
present in each SCT menu chain, you cannot control the
LBS until the SCTx860s are also installed.

IMPORTANT ! – It is necessary that the transcoders are
connected in proper order to the PS151 output connectors.
Viewed from the front of the rack, the left most transcoder
must be powered by socket 1, the next transcoder by
socket 2 on the PS151, and so on from left to right. It
doesn’t matter which power supply output is looped
through th

e LBS2250. The LBS L band outputs must then
connect to the transcoder input that is directly below the
LBS output – do not cross these cables.

After the LBS is installed, go to the PS151 front panel and
enter the program mode. Use the unit select arrows to
select each transcoder and on each transcoder use the left
and right arrows to navigate to the LBS: menu which is
between the output CHANNEL menu and the satellite
MODE: menu. Then use the up or down arrow to choose
LNB A or B.

The LBS is programmed and powered from the PS151
power supply/controller that is installed with the
transcoders in the RMT150. To install the LBS, select any
one of the power cables that connect the PS151 to the
SCTx860 transcoders and loop this connection through the

© Copyright 2007 R.L. Drake Holdings, LLC P/N: 38522486 A-11-2007 Printed in U.S.A.

Any version of PS151 firmware from V1.4 up will recognize
the LBS. If your PS151 is older than V1.4, please contact
the factory for information regarding how to upgrade the
firmware in the field. This can be done via the RS232
connection to a PC.

TM is a trademark of the R.L. Drake LLC

is a registered trademark of the R.L. Drake LLC

LBS2250 L BAND SWITCH

TM

SPECIFICATIONS

L band Amplified Multiswitch - specification applies to each input, A or B

Frequency Range:

Input Level Range:

L Band Output Levels:

L Band return loss:

Isolation, LNB A to LNB B:

Output Combiner

Frequency Range:

Inputs:

Output:

Insertion Loss, any input to output:

Return Loss:

LNB Powering

LNB A
LNB B

Protection:

950 to 2250 MHz

- 60 to -25 dBm from LNB
Rear LNB Out pu t - Uni t y g ain ref . t o LN B Inpu t .
Front P an el, 1 0 pl aces - 5 dB b el ow LNB In put
level, nominal.
14 dB typical, all ports.
30 dB minimum

54 to 100 0 MHz
10
1
13 dB nominal, 14.5 dB maximum
14 dB typical, al l port s

18 VDC @ 250 mA, maximum
13 or 18 VDC, selectable @ 250 mA, maximum.
Short circuit protection.

LBS2250 L BAND SWITCH

TM

Three Year Limited Warranty

R.L. DRAKE HOLDINGS, LLC warrants to the original purchaser this product shall be free from defects in material or
workmanship for three (3) years from the date of original purchase.

During the warranty period the R.L. DRAKE HOLDINGS< LLC or an authorized Drake service facility will provide, free of
charge, both parts and labor necessary to correct defects in material and workmanship. At its option,
R.L. DRAKE HOLDINGS, LLC may replace a
defective unit.

To obtain such a warranty service, the original purchaser must:

(1) Retain invoice or original proof of purchase to establish the start of the warranty period.
(2) Notify the R.L. DRAKE HOLDINGS, LLC or the nearest authorized service facility, as soon as possible after discovery

of a possible defect, of:
(a) the model and serial number,
(b) the identity of the seller and the approximate date of purchase; and
(c) A detailed description of the problem, inc luding details on the electrical connection to associated eq uipm ent and the list
of such equipment.

(3) Deliver the product to the R.L. DRAKEHOLDINGS, LLC or the nearest authorized service facility, or ship the same
in its original container or equivalent, fully insured and shipping charges prepaid.

Correct maintenance, repair, and use are important to obtain proper performance from this product. Therefore carefully read
the Instruction Manual. This warranty does not apply to any defect that R.L. DRAKE HOLDINGS, LLC determines is due
to:

(1) Improper maintenance or repair, including the installation of parts or accessories that do not conform to the quality and
specifications of the original parts.

(2) Misuse, abuse, neglect or improper installation.
(3) Accidental or intentional damage.

All implied warranties, if any, including warranties of merchantability and fitness for a particular purpose, terminate three (3)
years from the date of the original purchase.

The foregoing constitutes R.L. DRAKE HOLDINGS,LLC’s entire obligation with respect to this product, and the original
purchaser shall have no other remedy and no claim for incidental or consequential damages, losses or expenses. Some
states do not allow limitations on how lon g an implied warranty lasts or do not al l ow the exclus i ons or limitation of incidental
or consequential damages , so the above limitation and exclusion may not apply to you.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
This warranty shall be construed under the laws of Ohio.

ervice, contact:

For S

R.L. DRAKE

HOLDINGS, LLC

710 Pleasant Valley Drive

Springboro, Ohio 45066

U.S.A.

Customer Service and Parts Telephone: [phone]

World Wide Web Site: http://www.rldrake.com

LBS2250 L BAND SWITCH

TM

SERVICE INFORMATION
You may contact the R.L. DRAKE Service Department for

additional information or assistance by calling
[phone], Monday through Friday, between
8:00 A.M. and 4:00 P.M. Eastern Time, except on holidays.

You may also contact the R.L. DRAKE Service Department by
E-mail at the following address:
[e-mail]

Should you want to return your unit for service, package the
unit carefully using the original carton or other suitable

IF YOU NEED TO CALL FOR HELP
Call our Customer Service/Technical Support line at
[phone] between 8:00 A.M. and 4:00 P.M.
Eastern Time, weekdays. Please have the unit’s serial
number available. We will also need to know the specifics
of any other equipment connected to the unit.
When calling, please have the unit up and running, near
the phone if possible. Our technician(s) will likely ask
certain questions to aid in diagnosis of the problem. Also,
have a voltmeter handy, if possible.

R.L. DRAKE HOLDINGS, LLC also provides
technical assistance by e-mail:
[e-mail]

Many of the products that are sent to us for repair are in
perfect working order when we receive them. For these
units, there is a standard checkout fee that you will be
charged. Please perform whatever steps are applicable
from the installation sections of the Owner's Manual
before calling or writing—this could save unnecessary
phone charges. Please do not return the unit without
contacting R.L. DRAKE first: it is preferred to help
troubleshoot the problem over the phone (or by mail) first,
saving you both time and money.

Inside the carton, enclose a note with your name, ad­dress, daytime phone number, and a description of the
unit’s problem.
The unit must be sent to the following address:

Service Department
R.L. DRAKE HOLDINGS,LLC

710 Pleasant Valley Drive
Springboro, Ohio 45066 U.S.A.

container.
Write your return address clearly on the shipping carton

and on an enclosed cover letter describing the service
required, symptoms or problems. Also include your
daytime telephone number and a copy of your proof of
purchase.

The unit will be serviced under the terms of the
R.L. DRAKE HOLDINGS, LLC Limited Warranty
and returned to you.

Be sure to include your street address which will be needed for
UPS return. UPS Surface (Brown Label) takes 7-10 days to reach
us depending on your location, Blue takes 2-3 days. Red is an
overnight service. Send the unit in a way that it can be traced if
we can’t verify receipt of shipment. We suggest UPS or insured
postal shipment.

If the unit is still under the original owner’s warranty,
R.L. DRAKE will pay the cost of the return shipment to you. Our
return shipping policy is that we will return it UPS Brown if
received Brown or by US Mail, it will be returned Blue if received
Blue or Red—or it will be returned however you prefer if you
furnish the return cost for the method you select.
If the unit is out of warranty, use one of the following methods for
return shipment:

1) You designate billing to American Express, VISA, MasterCard
or Discover card;

2) You prepay the service charges with a personal check, or

3) You specify some other method of return and payment.
When calling, the technician can estimate the repair charges for

you over the phone. This is another good reason to call before
sending a unit in for repair.
Typically, equipment is repaired in five to ten working days after it
arrives at R.L. DRAKE if we have all the facts. If we must call you,
it may take longer. R.L. DRAKE is not responsible for damage
caused by lightning, nonprofessional alterations, “acts of God”,
shipping damage, poor storage/handling, etc. R.L. DRAKE will
make note of any shipping damage upon receipt.

You will need to send proof of purchase to receive warranty
service. Typically, a copy of the invoice from an R.L. DRAKE
dealer will suffice. The warranty is for the original owner only and
is not transferable.