Reals - Siemens HiPath 3000 Series Service Documentation

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3.4.12

REALS

NOTE
>
Danger of damage to property due to surge voltage. The required lightning protec-
tion measures must be taken for this board, see Section 2.1.2, "Lightning Protec-
tion".
Introduction
The REALS (Relais and ALUM for SAPP) board is used in HiPath 3800 to provide the following
functions:
Four individual, controllable relays are available for special connections, such as door
●
openers.
The switch contacts for all relays are floating and protected by surge protectors.
Electrical characteristics of the relays are as follows:
– Maximum current drain at - 48 V: 80 mA
– Operating voltage: + 5 V
– Contact current: max. 1.25 A
– Contact power: max. 30 W
Trunk failure transfer (ALUM)
●
In the event of a power failure or a system restart or reload, an analog trunk is transferred
from the system to an analog telephone. If the power supply voltage returns after an inter-
ruption and a trunk call is in progress, activation of the trunk failure transfer relay is pre-
vented by optocoupler.
– Default = HiPath 3800 is in normal mode:
PFTALa/b (trunk) is connected to PFTASa/b (trunk module).
PFTTLa/b (terminal) is connected to PFTTSa/b (subscriber line module).
– Error = HiPath 3800 does not have any power
PFTTLa/b (terminal) is connected to PFTALa/b (trunk).
ALUM relay electrical data:
– Operating voltage: + 5 V
– Contact current: max. 1.25 A
– Contact power: max. 30 W
All of the functions are controlled by the
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
CBSAP board.
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