R&S®GV4000 Multi-Link Controller

High-availability ATC radio system

Key Facts

  • Level of availability meeting or exceeding that of traditional main/standby solutions
  • Reduction in the required capital investment and ongoing maintenance costs

Brief Description

One of the key factors in ensuring safety in air traffic control (ATC) applications is to provide a high level of availability for the ground-to-air communication system. The R&S®GV4000 multi-link controller was developed to achieve this goal.

Features

  • Increase in radio channel availability
  • Reduction in system costs and rack space
  • Flexible integration into existing ATC systems

Specifications

General data
Power supply/AC supply 101 V to 127 V AC, 202 V to 253 V AC typ. 15 VA (max. 60 VA), 47 Hz to 63 Hz

Key Facts

  • Level of availability meeting or exceeding that of traditional main/standby solutions
  • Reduction in the required capital investment and ongoing maintenance costs
  • Less space required at each radio site
  • Flexible approach for site-specific solutions

Brief Description

One of the key factors in ensuring safety in air traffic control (ATC) applications is to provide a high level of availability for the ground-to-air communication system. The R&S®GV4000 multi-link controller was developed to achieve this goal. It provides n+m redundancy for R&S®Series4200 radios, which ensures higher availability levels at lower costs compared to the traditional 1+1 redundancy.

In the past, most ATC systems used 1+1 redundancy, where each main unit had a dedicated backup unit. Today, more and more ATC authorities are employing systems with n+m redundancy, where n main units operate with m non-dedicated backup units.

The R&S®GV4000 controls the status of up to 16 main radios and two backup radios. If a radio failure occurs in any of the 16 main radios, the R&S®GV4000 automatically switches over to one of the two standby radios. Detailed mathematical calculations show that n+m redundancy can reduce system downtime by a factor of up to six compared to standard 1+1 redundancy. The results of these calculations have been confirmed through years of field experience with systems using the R&S®GV4000 in n+m applications.

The use of n+m redundancy significantly reduces the number of radios needed. As a result, considerably less space is required at each radio site, and procurement and operating costs are lower. No modifications to the voice communication switch are needed to implement n+m redundancy with the R&S®GV4000 in existing ATC systems.

Features & Benefits

  • Increase in radio channel availability
    • n+m redundancy with automatic switchover
    • Priority concept for switchover of radios
  • Reduction in system costs and rack space
    • Reduction in capital investment and ongoing maintenance costs
    • Reduced space requirements
  • Flexible integration into existing ATC systems
    • Optimal solution for each radio site
    • Integration into remote control and monitoring systems
  • Field-proven technology
    • Monitoring and control of radios via SNMP
    • Capability to operate with analog signals, including E&M
    • Simple configuration with extremely easy-to-use setup software

Specifications

General data
Power supply AC supply 101 V to 127 V AC,
202 V to 253 V AC
typ. 15 VA (max. 60 VA), 47 Hz to 63 Hz
  DC voltage nom. +24 V DC, typ. 500 mA (max. 2.5 A)
+19 V to +31 V DC, negative pole to ground
  DC and AC voltages automatic AC/DC switchover
Electrical safety   EN 60950-1:2006
EMC   ETSI EN 301489-1 V1.6.1 (2005-09),
ETSI EN 301489-22 V1.3.1 (2003-11),
EN 55022:1998 + A1:2000 + A2:2003,
EN 61000-3-2:2000 + A2:2005,
EN 61000-3-3:1995 + A1:2001 + A2:2005
Environmental data
Protection against foreign bodies   IP30 in line with EN 60529
Temperature range operation -20°C to +55°C
  storage -40°C to +70°C
Maximum relative humidity   EN 60068-2-3
  during operation 95% at +40°C (without condensation)
  during storage 95% at +40°C
Vibration   EN 60068-2-6
  without shockmount 0.3 mm double amplitude, 2 g
10 Hz to 55 Hz, total test duration 30 min
Shock   EN 60068-2-27
  without shockmount 30 g for 11 ms, 18 shocks/three positions
Maximum altitude above sea level   EN 60068-2-40
  during operation 3500 m, test condition 700 mbar
  during transport/storage 5000 n, test condition 550 mbar
-40°C, test duration 2 h
Mechanical data
Dimensions (W x H x D) including handles 483 mm x 88 mm x 502 mm
(19.0 in x 3.5 in x 19,8 in)
  from rear edge of front panel 483 mm x 88 mm x 445 mm
(19.0 in x 3.5 in x 17.5 in)
Weight for the three models approx. 8 kg (17.6 lb)
Hardware and software for R&S®GV4000 configuration tool
Hardware processor Intel Pentium D/AMD Athlon or better
  RAM 1 Gbyte or more
  hard disk 20 Mbyte free disk space
  interface 1 serial port (RS-232-C)
  cable null-modem cable to connect the R&S®GV4000 with PC with the R&S®GV4000 configuration software
Software operating system Windows XP SP2 or later,
Windows Vista
  other software VC++ 2008 SP1 Redistributable (vcredist_x86.exe) and Adobe Reader 8.0 or later for viewing online software manual
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