Differences between version A and version B
version B makes it possible connect only 1 microphone and 1 speaker
version B hasn't relay (remote switch) and INPUT (failure announcement)
version B hasn't adjustable level of DTMF and has fix -10dBm
1.2 Terminology
It is explain here the meaning of used words in manual.
Communicator LLW
- it is final product designed for communication from
lift cabin to service center.
Emergency call
- it is person calling while lift failure or other
emergency situation happened. It is activates by
button pushing. The call is being between lift cabin
and service center.
Service calling
- it is calling regularly repeated. (for example every 3
days). It is automatic proving of NLLW functionality. )
Failure calling
- it is calling caused by status change on input
INPUT
Machine room call
- it is calling between lift cabin and machine room, )
Incoming call
- it is calling coming from outside into NLLW unit.
The NLLW pick up (you can programm
parametres)
Dial
- it is kind of dial on telephone line
–
dial
(DTMF) dial
(dial even acknowledgement * and # , use loop
interuption = Flash) or
pulse
– (dial only numeral)
Telephone line
- PSTN line
(public line)
(line coming directly from
Telecommunication carrier) or
extension line
(coming from PBX)
confirmation
- dial of combination star
*
and numerals. After
dialling of those characters the call is authorised and
lift communicator reply by its unique serial number.
(5 digits)
serial number
- each lift communicator NLLW
has unique seriál
number since 00001 to 65535. This number is
sending via DTMF every time when NLLW receives
confirmation character
call connection
- this status is indicated via lighting of green check
–
light and might be caused either by call confirmation
( dial confirmation character) or when is not present
ringing tone for longer time period.