Scantronic 808 Manual de Instalação descarregar pdf (Página 28)

…always there

TROUBLESHOOTING

This section describes typical problems that may arise, the symptoms, possible

causes and solutions. If you have problems that you cannot resolve after

consulting this section, please contact BT redcare Technical Helpline Freephone:

0800 671 240.

Chirps

The redcare system utilises an existing telephone line to provide a secure

communications link between the alarm system at the protected premises and

the ARC.

To facilitate this, two modes of communication are employed: a continuous

inaudible low-tone, normally present all the time, and an audible ‘chirp’, used to

transmit alarm messages and check for the presence of the STU.

These ‘chirps’ will not normally be heard, but they can occasionally occur as the

telephone handset is lifted. This ‘chirp’ should be heard only once. If ‘chirps’ are

heard regularly during conversation, please contact BT redcare for advice.

Equipment Compatibility Issues

Certain compatibility issues with specific equipment can be overcome by

changing the low-tone signalling level output from the STU. Only where advised

by BT redcare, the low-tone attenuation setting can be changed by re-

programming the NVM. The NVM address concerned is number 33 which also

contains the line monitoring mode setting. The options available are shown on

page 29.

1 2 ... 23 24 25 26 27 28 29 30 31 32 33

Sem comentários

Scantronic 808 Manual de Instalação Página 28