Karel DS200, Technical Reference And Installation Manual

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DS Series PBX Technical Reference And Installation Guide
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Connect the 100MB Ethernet port that is on the DCC Utility card in the DCC Block to the
network switch. Since no SPS200 is employed in the system, the DCC Block obtains -48 V
DC voltage from the power supply. Therefore, connect the DCC Block to the External Power
block over the cable that is on the back of the DCC Block. Plug the DCC Power In card in the
rightmost slot. If redundant of this card is available, redundant card should be installed into
the left side of the DCC Power In card. Normally this slot is used for 8E1 Interface cards.
The DCC Utility card and the redundant DCC Utility card (if available) are supposed to be
installed in the slots in the middle, which are labeled CP1 and CP2 on the DCC backplane.
DCC 8E1 Interface cards may be installed in the other 14 vacant slots, depending on needs.
Connect also the Ethernet port of the PCU200 Block to the network switch. A redundant
PCU200 block may be installed right below the PCU200 block upon wish. The PCU200
blocks receive 220 V from the power inverter over a cable connection to be made. If a
redundant PCU200 block is available, then it should be connected to the master PCU200
block over a cable for 220 V. The redundant PCU200 is automatically put into service in case
the master one malfunctions.
If the system is fed by external power supply, power inverters will be needed. Power
inverters should also be located close to the PCU200 block inside the 19” cabinet. They
receive -48 V from the External Power block over a cable, convert it to 220 V and then
transfer that voltage to the PCU200 block and the network switch.
If there is no external power supply, PCU200 block and network switch can be fed by UPS
(Uninterruptible Power Supply) or by electricity network. In this case, there will be no need to
use power inverter.
NOTE: In the DS200L system, E1 cables that are connected to the DCC block and local area
network cables that are connected to the network switch should be shielded and grounded
CAT5 STP cables.