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A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
3-383
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Boards for HiPath 3000
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3.4.12
REALS
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
>
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”.
Summary of Contents for HiPath 3000 Series
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