User Manual – EC II GSM SE
12
5.2.1.9
Loop amplifier
There is the possibility to connect a loop amplifier to the central unit which makes it easier for
people with impaired hearing to hear what is said in the speech unit. Check with your local
distributor or Rocom GmbH for information about approved loop amplifier units to connect to
EC II GSM SE.
5.2.1.10 Technical alarms
In some cases a technical alarm needs to be sent from the lift to the alarm receiver to indicate
a fault in the installation. One of the two available alarm button inputs can be used for that
purpose. If the alarm button input in the speech unit is connected to the alarm button in the lift
the free input in the central unit can be used for technical alarms.
The inputs are default set to breaking function which means that an alarm is generated when
opening up the circuit. The alarm type for the alarm is default set to 10d but must be change
with a programming sequence, see section 8.4.11 below. The technical alarm output from the
lift must be able to generate an open or close signal. Note that the alarm receiver must be
able to receive the alarm type that is used for technical alarms.
6
Installation
Only competent and qualified personnel may install the EC II GSM SE. Knowledge, technical
skill and correct equipment are required for safe and efficient installation.
Warning!
Mind your own safety when installing EC II GSM SE. You must never work in an open lift shaft with-
out a safety harness. Be extremely careful and break current if you work close to a voltage of 230-
400V, e.g. in the lift engine room. Never disconnect a cable before you have made sure that it is not
connected to any voltage. After installation the low tension cables (SELV) have to be bundled to-
gether so they cannot come near live wire or parts of the mains voltage if a connection loosens from
terminal block.
6.1 Installation of central unit
The Central unit is most easily mounted on the roof of the lift either in a lying or standing posi-
tion. Ensure that is possible to connect, both to the electric system and the alarm button from
the site of erection in the lift car. The central unit should not be mounted on top a lighting fit-
ting that can raise ambient temperature and therefore shorten the lifetime of the battery. The
enclosed mounting screws or other suitable screws should be used.
Standing installation
Lying installation
Summary of Contents for EC II GSM SE
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