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Ethernet Crossover cable, or  
straight cable through a hub.

Ethernet address 00.A0.94.00.7B.EA

100-240V-

60Hz/50Hz

2.0A/1.0A

ViaSat

Made in USA

4356 Communications Drive

Norcross, GA 30093

P/N:CL0005472-01

Rev: C            Tracking ID:  2036847

S/N:  SN32538
Eth Addr: 00.A0.94.00.7B.EA

RX IN

10/100 BASE-T

AUX ODU PWR

TX OUT

+24VDC      4A

To 

Power 

Source

To LNB

To 

Ethernet

To 

External

Power 

Supply

(if used)

To 

BUC

External Power
Supply (if used)

LinkStar

PWR

ALM

COU

SAT

Power
Cord

Antenna 
and Mount

LNB 
(Typical)

RCST

Tx and Rx
IFL Cable

BUC 
(Typical)

Ethernet Cable
(not supplied)

LinkStar

PWR

ALM

COU SAT

LinkStar RCST Installation  
Guide (not supplied)

RCST Rack Mounting 
Brackets (optional)

LinkStar RCST QuickStart 
Guide

1a.

Verify all equipment has been received

and is of the correct type. (Refer to

Section 4, LinkStar Remote Site

Components, and Section 6, IFL

Requirements, of the 

LinkStar RCST

Installation Guide

):

• Antenna
• Antenna Mount
• BUC
• External Power Supply (if used) 
• LNB
• Return Channel Satellite Terminal (RCST)
• RCST Rack Mounting Brackets (optional)
• Tx/Rx IFL Cable(s)

Required Items (Not supplied with RCST):

LinkStar RCST Installation Guide

(one per installation

team; also available at www.viasat.com/skynet)

• Ethernet Cable (Crossover or Straight, if using hub)
• Windows

®

PC

?

LinkStar

RCST

Quick

Start Guide

1. 

Inventory

I N S T A L L A T I O N   W A R N I N G S

2a.

Install the RCST on a table top or in a rack. 
DO NOT block the side air vents or the unit will
overheat.

2b.

Make sure power is OFF to RCST (and to External
Power Supply, if used).

2c.

Install antenna, LNB, BUC (and External Power
Supply, if used).

2d.

Connect the Rx IFL cable from the LNB to the RCST
Rx In, using the unlabeled cable of the Siamese
cable pair. 

3. 

RCST Setup

3a.

Power ON RCST.

3b.

Connect crossover cable (or straight cable through a hub)

to 10/100 base-T port. Telnet to the RCST default IP

address (see note at the left).

3c.

Set boot parameters with 

save

command: 

save -t

(Tx power (1/2 dB steps))

-c

(control PID)

-f

(TDM carrier (in KHz))

-pcr

(PCR PID)

-pop

(population ID)

-o

(ODU status)

-s

(symbol rate)

Example:

save  -t

-60 

-c

0x1029 

-f

125000 

-pcr

0x365

-pop

Ox11e0004 

-o

-s

27500000

ODU status parameters

-o

1

If the RCST will power the BUC.

-o

2

If using an External Power Supply.

3d.

Enter 

dbpr bootconf

to check parameters.

3e.

Enter 

hw

to reboot terminal.

C A U T I O N ! !

TO AVOID DAMAGING THE UNIT

DO NOT short center pin of RCST Rx connector or center pin 

of Rx IFL cable to ground.

DO NOT connect the Tx IFL cable to the BUC until receive 

synchronization is established.

Always power off the RCST (and External
Power Supply if used) whenever connecting 
or disconnecting IFL cables. Failure to do so 
can result in damage to the RCST power supply.

Do not connect the transmit IFL to the RCST
receive IF port. The BUC will pull excessive 
current and damage the power supply. Obtain
receive synchronization before connecting 
the transmit IFL cable to the BUC.

Do not short the center pin of the receive 
IF connector or receive IFL cable to ground. 
This will cause excessive current and will 
damage both the power supply and the RCST.

If an External Power Supply is installed with 
the RCST, ensure the RCST boot parameter is 
set for "External." If this boot parameter is 
not set correctly, the internal power supply 
could fail after a few hours of operation due 
to excessive current drain.

Verify IFL cable type, length, and need for 
External Power Supply as defined in the 
Linkstar RCST Installation Guide, Section 6, 
IFL Requirements. Failure to comply with these
requirements can cause the RCST power supply
to fail or shorten the life of the supply.

2. 

Installation

W A R N I N G ! !

Before connecting or disconnecting any IFL cables,

the power to the RCST and External Power

Supply MUST BE TURNED OFF.

Note: 

The default IP address 

is always 10.0 plus the last two
hex octets converted to decimal. 
In this example, 7B.EA hex 
converted to decimal is 123.234,
therefore this RCST’s default IP
address is 10.0.123.234. The
subnet is 255.255.255.0.

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