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NOVO Technical Handbook - NE41 15013-02 v2.0
5.5.2 Visual indications
Ongoing call
During an ongoing alarm call the unit will indicate call in progress/conversation, see
"3.1.2 Alarm button (L4) LED indications", if the alarm type is configured to allow
visual indications.
The unit can be configured to disable visual call indications when powered by backup
accumulator.
Wait between calls
When unit enters wait between calls for an alarm type configured to have visual
indications it will indicate this as described in "3.1.2 Alarm button (L4) LED
No more call attempts
If a call sequence has failed to transfer an alarm type configured to have visual
indications the unit will indicate this as is described in "3.1.2 Alarm button (L4) LED
5.6 Protocols
NOVO supports several protocols. Contact NEAT or your distributor for a complete
list.
The protocol determines the parameters for the communication session. A
communication session can consist of a data transmission part and/or voice
communication.
For an analogue alarm receiver data will be exchanged by DTMF/ST tones and for an
IP-base alarm receiver data exchange is done digitally.