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BT Redcare 5G GSM STU User's Installation Manual

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User/Installation Guide
(Non roaming version)
5G GSM STU

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Summary of Contents for BT Redcare 5G GSM STU

  • Page 1 User/Installation Guide (Non roaming version) 5G GSM STU...
  • Page 2 Even if an intruder cuts the line and jams the radio signals an alarm message will still rapidly be sent to the ARC. The 5G GSM STU is fully compatible with BT’s 21CN network upgrade program and connects to any BT redcare enabled telephone line.

  • Page 3: Pre-Installation Requirements

    It is strongly recommended that a site survey is carried out to check for suitable GSM signal strength at the proposed GSM STU location. The 5G GSM STU uses SMS messaging across the O2 GSM mobile phone network, and for reliable operation a signal strength of 12 or greater (-90dB) should be available at the location of STU installation.
  • Page 4 STU installation. If the signal strength is weak, try to find a better position for the 5G GSM STU unit. If required, a higher gain extension antenna with an extension cable is available at extra cost from BT Redcare. (Part No.

  • Page 5: Output Relays

    Note: when the 5G GSM STU is plugged on to a suitable panel the power connections must still be made to the terminals marked +12V & 0V on TB1. For plug-in installations, be sure that no wires are ever connected to the terminals 1 to 8 on TB1 as this may result in damage to the alarm panel.
  • Page 6 For plug-in installations, Line Fault connections are made automatically when it is fitted in the host alarm panel. The host panel must be programmed to accept this function. At default the 5G GSM STU Line Fault output is set to comply with BSIA form 175 mode of working. Other options are available as later described.
  • Page 7 The main menu can only be exited at the LD or ?? prompts (see these sections for exiting configuration mode). Tip: If the state of configuration is unknown then it can be reset to the factory default settings from the LD load default menu option. Redcare 5G GSM STU Installation manual - 04/07/2011...
  • Page 8 Pressing SET at the PE menu option enters the Pin Enable sub menu. At factory default the all inputs are enabled. Tip: There is generally no requirement to disable inputs, unused inputs can simply be left disconnected. Redcare 5G GSM STU Installation manual - 04/07/2011...
  • Page 9 The type of telephone line specified affects the method used by the STU to detect line faults, and the attenuation level affects the amplitude of low-tone output when the line is detected as being on or off-hook. Redcare 5G GSM STU Installation manual - 04/07/2011...
  • Page 10 At factory default the F5 digit is set to 0. Tip: The Serial alarm input is for future use and not to be used on 5G STU at this time. All 5G STU’s should use the 0 setting only. Redcare 5G GSM STU Installation manual - 04/07/2011...
  • Page 11 Pressing set at the F6 menu option allows the Function 6 value to be configured. At factory default the F6 digit is set to 1. F7 Function 7 - Line Fault output for GSM. (5G GSM STU only) Pressing set at the F7 menu option allows the Function 7 value to be configured. At factory default the F7 digit is set to 3.
  • Page 12 SS > 00. This generally takes about 45 seconds following power up. Failure to wait for the STU to register with the GSM network will result in the wireless path not commissioning. Redcare 5G GSM STU Installation manual - 04/07/2011...
  • Page 13 5 seconds. This denotes that commissioning over the PSTN path has been successful. When the 5G GSM STU is correctly commissioned over the GSM path the dot on the right hand display will flash every 5 seconds. This denotes that commissioning over the GSM path has been successful.

  • Page 14: Common Problems

    AL-4 and not show AL-00. 5G GSM STU fails to UP on GSM path If the GSM STU fails to up on the GSM path it should be totally powered down and then re-powered.

  • Page 15: Glossary Of Terms

    STU to F3=3 may help. Alternatively contact the redcare helpdesk for further advice. Panel permanently shows comms fail when a 5G GSM STU is used in plug-on mode A small number of alarm panels may have the Comms Fail (7) or Line Fault (15) connections inverted on the plug on Molex pins.

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