BT Redcare GSM STU EV, Руководство по установке пользователя

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ATS Test
The GSM STU EV is supplied with an NVM fitted, which enables the Alarm Transmission System test function. The ATS test
function allows the alarm panel (and ARC) to distinguish whether one or both paths have failed in the event of a
communications failure. The Line Fault signal (SK2 pin 15 or the Line Fault relay), and the ATS test signal (SK2 pin 11 or
Alarm Pin 8 on TB1) are used in accordance with BSIA form 175. This is available free of charge from the BSIA or
downloadable at:
http://www.bsia.co.uk/pdfs/Form_175.pdf
The alarm panel must also conform to this standard for the function to work correctly. The alarm panel can request an ATS
test by applying the ATS Test signal, the GSM STU EV then communicates with the ARC on both the GSM wireless path
and the landline. If no communication path faults are detected by the GSM STU EV , the ARC will receive a pin alarm 10
over the GSM path and a pin alarm 11 over the landline. When reset, these will complete the end-to-end test.
If the alarm panel asserts the ATS test pin/channel during a line fault the GSM STU EV will signal to the alarm panel
whether it is a dual path or single path failure in accordance with BSIA form 175, using the line fault output and relay.
To deactivate the ATS test function, the plug-in NVM can be carefully removed or re-programmed to suit (see page 21).
For plug-in panels, LK3 may also have to be changed (see page 17).
Telephone Line Selection (LK1)
The GSM STU EV is supplied ready to connect to the Public Switched Telephone Network (LK1 is not fitted).
If the GSM STU EV is to be connected to a Private Wire (RedDIRECT) a suitable link must be fitted in the position marked
LK1. An NVM chip must be configured for PW use and fitted in accordance with the procedure on page 21.
If you have any doubts about the type of telephone line to which the STU is being connected,
contact BT redcare for advice.
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