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CONNECTING THE POWER SUPPLY UNIT (PSU)

Calculate  the  total  current  consumption  of  the  Multiswitch(es),  LNB  and 

any  Launch  Amplifiers  that  make  up  the  complete  IRS  System.  The  current 

consumption of the Series D Multiswitch range can be found in the Specification 

section  of  this  manual.  If  in  doubt,  assume  the  current  consumption  of  each 

LNB to be 200mA max (0.2A). Connect a suitable Whyte PSU to the Auxiliary 

18V DC Input. If more than one PSU is required, the additional PSU(s) may be 

connected to any other Multiswitch, Launch Amplifier, Tap or Splitter within the 

system. When all connections have been made, connect the PSU to a 240V 

supply to power up the IRS System. It is 

highly advisable

 to isolate and hence 

divide the system in to DC Groups containing only a single PSU per group, by 

using F-type DC blockers (not supplied).

Connecting the Subscriber Cables

Terminate the Subscriber Cables with good quality F Connectors and connect to the Subscriber 

Outputs. The F Connectors should be fitted to the coaxial cable correctly, ensuring that the centre 

core protrudes 3mm above the F Connector body. 

See figure 3.

 Ensure that you do not exceed the 

bending radius of the Coaxial Cable being used. The Subscriber Cables may be arranged either 

side of the Multiswitch before being terminated and connected. If required, the Subscriber Cables 

may be arranged to one side of the Multiswitch, with the cables passing under the Multiswitch before 

being terminated and connected to the Subscriber Outputs on the opposite side. 

See figure 4.

Always use CAI approved high quality coaxial cable.

Connecting the Power Supply Unit (PSU)

The PSU must be fixed to the relevant wall surface using the appropriate fixings. Connect the DC F-

type lead to the 18V DC Input of the Multiswitch.

Once  all  connections  have  been  made,  connect  the  plug  to  a  240V  socket  to  power  up  the 

Multiswitch. If a local mains supply is not available such as in lofts and outdoor cabinets, the Power 

Supply Unit may be conveniently fitted elsewhere whereby the 18V DC F-Type lead may be extended 

using coaxial cable.

5

Whyte

Earth Bonding

Earth bond the Multiswitch to the Earth Bonding Lug using minimum 4mm² Earth Bonding Cable.  

Make sure that the Earth Bonding Cable is connected directly to the building’s PME (Protective 

Multiple Earthing) point.

Figure 3

3mm

Figure 4

Whyte

COMMISSIONING THE MULTISWITCH

See Figure 4: 

1. Connect a spectrum analyser to any Subscriber Output of the first Multiswitch 

2. Set the TERR Pro-Tap to -20dB 

3. Set the Spectrum Analyser to Terrestrial. Using the TERR Gain Control adjust 

the Terrestrial  signal  to  the  required  digital  channel  power  level.  If  the  signal 

cannot reach the required level, set the TERR Pro-Tap to -10dB and readjust the 

TERR Gain Control. If required, set the Pro-Tap to -0dB and readjust the Gain 

Control.

 

4. Check the SAT signal levels in Legacy and dSCR mode. These will not require 

adjustment as they are self-commissioned using Automatic Gain Control.

5. Repeat the above for all other Multiswitches in the IRS System as applies.

CONNECTING THE SUBSCRIBER CABLES

Terminate the Subscriber Cables with good quality F Connectors and connect to 

the Subscriber Outputs. The F Connectors should be fitted to the coaxial cable 

correctly, ensuring that the centre core protrudes 3mm above the F Connector 

body. 

See figure 3.

 Ensure that you do not exceed the bending radius of the 

Coaxial Cable being used. 

USER BAND FREQUENCIES

Содержание WSCR504

Страница 1: ...DSCR MULTISWITCH INSTRUCTION MANUAL www whytetechnologies com MODELS WSCR504 WSCR506 WSCR508 WSCR512 WSCR516...

Страница 2: ...ng point using minimum 4mm diameter earth cable PRECAUTIONS To ensure trouble free operation Do not remove the cover of the Multiswitch or disassemble it as this will invalidate the guarantee The fema...

Страница 3: ...automatically detected and switched over on a per subscriber port basis Terrestrial signal levels are controlled via a manual Gain Control knob and a selectable Protean Tap which permits a wide range...

Страница 4: ...n stand alone mode when powered directly Whyte via the 18V Auxiliary Input by using a Whyte Power Supply Unit sold separately Any unused open SAT TERR Trunk Outputs must be terminated using 75 DC Bloc...

Страница 5: ...nsure that this is also water tight Ensure that all drop cables have drip loops prior to their entering the building Connect the SAT and TERR drop cables to the corresponding Satellite and TERR Inputs...

Страница 6: ...is not available such as Supply Unit may be conveniently fitted elsewhere whereby th using coaxial cable 5 Whyte Earth Bonding Earth bond the Multiswitch Make sure that the Earth B Multiple Earthing p...

Страница 7: ...www whytetechnologies com www whytetechnologies com 12 13 Whyte EXAMPLE CONFIGURATION Figure 4 EXAMPLE CONFIGURATION Hybrid IRS...

Страница 8: ...ap Output Ports F Connector 4 6 Trunk DC Pass SAT Yes Yes TERR No No Trunk Through Loss nom SAT 4dB 4dB TERR 4dB 4dB Gain SAT 35dB 25dB AGC 35dB 25dB AGC TERR 8dB 2dB 8dB 2dB Gain Control SAT AGC AGC...

Страница 9: ...hyteTech WhyteTechnologies Whyte Technologies WhyteTechnologies Whyte Technologies Chevron Distribution Ltd Unit 12 13 Watermill Business Centre Edison Road Enfield EN3 7XF Phone 0330 999 1980 E mail...

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