Karel DS200, Техническое справочное и монтажное руководство

Страница: 147 / 222

DS Series PBX Technical Reference And Installation Guide
137
XII.1.C. HOW TO SET UP SYSTEMS WITH FOUR OR
MORE RACKS
Work for setting up the DS200 system in configurations with four, five or six racks is indeed a
step that follows the cabinet-type setup of the DS200 system.
Except for the case where the four-rack cabinet that has been designed specifically for four-
rack systems is employed, first, two-cabinet type installation for DS200 is performed by
distributing the necessary quantity of racks to those two cabinets, for installation cannot be
realized with a single cabinet in systems with more than three racks.
The crucial point for mounting the two cabinets is that they should be positioned side by side
and they should not be displaced during and after the installation. For this purpose, the side
covers of the cabinets that face each other are removed, and the cabinets are attached to
each other with special metal holders and thus fixed to each other.
*
THE CABLES PROVIDING CONNECTION BETWEEN THE CABINETS MAY
BE DAMAGED IN CASE OF DISPLACEMENT.
Four-rack cabinet is used, if a system has four racks. In that case, since the entire racks can
fit into that cabinet, single-cabinet installation suffices. The rack that is to be installed into the
uppermost rack slot of the cabinet would be of the main rack structure, too, like the first rack.
Regarding the two-cabinet systems, the first racks (the lowermost) would be main rack and
the others would be auxiliary racks. However, there is CPU200 card only in a single
cabinet’s main rack. Likewise, there is DS200 CPUKON card in only a single main rack.
The first and the fourth racks are of main rack structure and the connection between these
two racks is provided with some cards and cables which are employed additionally. The list
of the cards and cables which are used for that connection is as follows:
1) Clock Master card
2) Clock Slave card
3) CCU card
4) BPL200-FC (2 items)
5) PCM carrier cable (5 items)
6) BPLSPS-FCX cable
In order to facilitate connection operation of the two cabinets, the SPS248 Power Units,
UTIL200, DS200 CPUKON and CPU200 cards (redundant CPU200, too, if there is any.),
which are in the third rack of the first cabinet and the main rack of the second cabinet have to
be removed.