Karel DS200, Technical Reference And Installation Manual

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XI.1.F. VENTILATION:
The technical personnel should learn about the seasonal climate patterns pertaining to the
area where the exchange is to be installed, as well as observing how much the room is
exposed to the sunlight, so that it is determined whether there is any need for air conditioning
depending on the size of the room. If the temperature in the room could exceed 40
o
C while it
is empty, then an air conditioner is needed in this room. In that case, the dimensions of the
room should be noted.
XI.1.G. HOW TO DETERMINE THE CONFIGURATION:
The exchange configuration is created according to the exchange capacity and the
information gathered during the field inspection.
The following parameters are calculated during the configuration determination work:
•
Exchange units,
•
Cables and cable guides to be used,
•
Distribution frame materials to be used (including protection units,)
•
Protection devices to be used,
•
Computer, computer desk, operator chair and printer, if necessary,
•
Generator, regulator, air conditioner and battery capacities,
•
The required “man x day” for the installation
XI.1.G.1. HOW TO CALCULATE THE EXCHANGE
COMPONENTS
The number of the exchange units is calculated by taking into consideration the line
capacities that may be in different sorts, which are demanded by the customer, some extra
features that may be requested, as well as the outcome of the configuration determination
work mentioned above.
For instance, if 500 analog extensions are required in the demanded system, then 500 / 16 =
31.25, i.e., 32 analog extension cards should be employed.
As stated in the table below, quantities of the cards to be used can be calculated regarding
the demands of the customer:
Number of analog
extensions
/ 16 = Number of Analog extension
cards EX200(0/16R),
EX200(0/16C)
Number of analog
(external) lines
/ 8 = Number of Analog (external)
line cards EX200(8+/0),
Number of digital
extensions
/ 8-16 = Number of Digital extension
cards EX200(0/8KoU),
EX200(0/16KoU)
Number of ISDN
extensions
/ 16 = Number of ISDN extension
cards EX200(0/8S0)
Number of ISDN BRI
(external) lines
/ 8 = Number of ISDN BRI
(external) line cards EX200(8T0/0)