1:1 Redundancy

ViaLite fiber optic links can be configured into dual redundancy (1:1) systems to ensure maximum up-time.  1:1 redundancy is achieved by configuring the system using two transmitter modules with one RF splitter/combiner module at the transmit location, combined with two receiver modules and a redundancy switch module at the receive location.

Using the ViaLiteHD 1:1 redundant system in conjunction with the highly reliable RF cards gives five nines reliability (99.999%); often required for critical satellite communications and TT&C (Telemetry, Tracking and Command).

  • 1:1 redundancy for L-Band HTS, GPS and wideband systems
  • Maximizes link up-time
  • Can be used to backup copper coax
  • Manual and automatic control via SNMP
  • Flexible configuration options
  • 5-year warranty as standard


Product Inquiry
1:1 Redundancy

Low Loss

The ViaLite RF splitter/combiner module is a passive, low-loss, broadband, 1:2 power divider/combiner.  The ViaLite redundancy switch module contains a broadband RF switch which provides very low insertion loss and very high levels of isolation.

 

Control

The RF switch is controlled automatically by sensing alarms on adjacent ViaLiteHD RF modules.  Alternatively, it can be controlled directly by the user’s monitoring and control (M&C) equipment.

The primary and secondary RF receiver modules, and the redundancy switch module can be fitted into any position in a ViaLite 19” rack chassis.  Dual cards and transceiver cards can also be used in redundant mode.  Together with ViaLite dual redundant power supplies, this solution provides the highest possible up-time availability for the ViaLite system.

Read our guide to setting up a redundant link system.

 

75 ohm redundant systems are also available.  Please contact us for more information using the product inquiry button above.

The ViaLiteHD switch and splitter are available in a couple of formats:

– Single rack chassis card / Dual rack chassis card (Rx/Rx, Tx/Tx or Tx/Rx)

A fully populated 19” 3U ViaLiteHD rack chassis supports up to 26 links and accepts 13 RF cards, plus an SNMP card and dual power supply modules.  A 1U chassis accepts three RF cards or two RF cards with an SNMP card.

– Yellow OEM Link

The Yellow OEM Link has been designed for system integrators and equipment manufacturers to build the link into their own designs.

See our hardware formats guide for more information.

Splitter RF Performance Characteristics

 L-Band (50Ω)L-Band + DC (50Ω)Wideband (50Ω)Wideband +DC (50Ω)
ModuleHRD-1-L1-0R-01HRD-2-L1-0R-41HRD-1-S1-0R-01HRD-2-S1-0R-41
Frequency Range 950-2150 MHz950-2150 MHz10-3000MHz10-3000MHz
Impedance50Ω50Ω50Ω50Ω
VSWR (typ)*1:1.51:1.51:1.81:1.8
Insertion loss path S1 (typ)4.2 dB4.8 dB10-1000MHz – 3.9 dB
1000-2500MHz – 4.4 dB
2500-3000MHz – 5.3 dB
10-1000MHz – 4.8 dB
1000-2500MHz – 5.5 dB
2500-3000MHz – 6.0 dB
Insertion loss path S2 (typ)4.2 dB4.8 dB10-1000MHz – 3.9 dB
1000-2500MHz – 4.3 dB
2500-3000MHz – 5.2 dB
10-1000MHz – 4.8 dB
1000-2500MHz – 5.5 dB
2500-3000MHz – 5.5 dB
Isolation (typ)20 dB20 dB10-1000MHz – 20 dB
1000-2500MHz – 20 dB
2500-3000MHz – 18 dB
10-1000MHz – 20 dB
1000-2500MHz – 20 dB
2500-3000MHz – 18 dB
Flatness full band (typ)±0.4 dB±0.4 dB±0.9 dB±0.9 dB
Max input signal+24 dBm+24 dBm+24 dBm+24 dBm
DC pass-through max currentNo DC path0.8A (fused)No DC path0.8A (fused)
* tested at 1.2GHz

 

Splitter Temperature Characteristics

 All products listed above
Operating temperature-10°C to +50°C
Storage temperature-40°C to +70°C

 

3-Port Switch RF Performance Characteristics

 L-Band (50Ω)L-Band + DC (50Ω)Wideband (50Ω)Wideband +DC (50Ω)
ModuleHRS-1-L1-0R-01HRS-4-L1-0R-41HRS-1-S1-0R-01HRS-4-S1-0R-41
Frequency Range950-2150 MHz950-2150 MHz10-3000 MHz10-3000 MHz
Impedance50Ω50Ω50Ω50Ω
VSWR (typ)*1:1.31:1.41:1.51:1.5
Max input signal+24 dBm+24 dBm+24 dBm+24 dBm
Insertion loss (typ)1.8dB2.3 dB10-50 MHz – 2.0dB.50-1000 MHz – 1.7 dB
1000-3000 MHz – 2.5 dB
10-50 MHz – 3.0dB
50-1000 MHz – 2.5dB
1000-3000 MHz – 3.0dB
Isolation (typ)60dB60dB10-50 MHz – 70dB
50-1000 MHz – 70dB
1000-3000 MHz – 60dB
10-50 MHz – 70dB
50-1000 MHz – 70dB
1000-3000 MHz – 60dB
Flatness full band (typ)±0.3dB±0.4dB±0.5dB±0.6dB
DC pass-through max current-0.8A (fused)-0.8A (fused)
* tested at 1.2GHz

 

3-Port Switch Temperature Characteristics

 All products listed above
Operating temperature-10°C to +50°C
Storage temperature-40°C to +70°C

ViaLiteHD RF Switch datasheet  (version HRS-x-DS-1)

ViaLiteHD RF Splitter datasheet  (version HRD-x-DS-1)

Yellow OEM datasheet  (version HRx-xx-xN-1)


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