User Manual – EC II GSM SE
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the EC II GSM SE. The connections must be galvanic isolated. Contact your local distributor
or Rocom GmbH for more information.
Note that the alarm button may have closing or breaking function. Breaking function is pre-
ferred and is the default setting for the EC II GSM. If the alarm button has closing function, the
EC II GSM SE must be programmed to handle this, see section 8.3.3 below.
If the lift does not have a double-breaking alarm button the build-in relay output in central unit
can be used to activate an external alarm signal bell. If the lifts existing alarm bell is not con-
nected to an emergency power supply it is possible to use the 12VDC output that is con-
nected in series with relay output. Note that the current consumption of the alarm bell must
exceed the declared value for the 12VDC output. To avoid misunderstanding only one alarm
button should be mounted in the lift car.
There is also a possibility to mount two extra alarm buttons (ALBU) with built-in microphones
on e.g. roof of the lift or under the lift car accessible, for example, a trapped lift technician.
Contact your local distributor or Rocom GmbH for more information.
6.1.6 Emergency light
It is possible to connect an emergency light to EC II GSM SE which automatically switches on
when the mains power is lost. When mains returns the emergency light switches off.
Output is adapted for an emergency light on maximum 12V 5W. Use the existing emergency
light or contact your local distributor or Rocom GmbH for more information.
This output is protected with fuse as protection against possible short circuit, see section 14
below.
6.1.7 Intercom
For communications between lift machine room and the lift car there is a possibility to connect
an intercom phone to the central unit. Most types of phones can be used as long as they are
approved for connection to the telephone network (TBR21 approval).
A connection is made automatically when the receiver is lifted and the connection is cleared
when the receiver is replaced. If a speech connected lift alarm is made at the same time as
the intercom is connected, the intercom is connection is broken and the lift alarm calls out as
usual. The Intercom is reconnected when the alarm call is finished if the receiver is still off the
hook.
If an incoming voice call is made at the same time as the intercom is in use, the intercom will
be disconnected and the voice communication starts. The Intercom is reconnected when the
alarm call is over if the receiver is still off the hook.
If the intercom receiver is off the hook at the same time as a speech connecting alarm call is
made, the intercom is not connected until the alarm call is finished. Test alarm and battery
alarm functions as usual even if intercom is in progress. Intercom is not affected if the product
is in alarm mode. When the intercom is active a tone is heard in the speaker of the speech
unit every 10th second and is indicated by light signals both in speech unit and in central unit.
Remote programming cannot be done at the same time as the intercom is in progress.
6.1.8 Output 12V DC
This output always supplies 12V DC, even if the product is operating on battery, as long as
the emergency power supply is not shut off to protect the battery against deep discharging.
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