Spaun Electronic SMK 99122 F, Технические рекомендации

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Trunklines (SMS 9982 NFI):
• All trunklines (0...8) have to be terminated with the isolated terminations (ZFR 75 DC)
supplied.
• Unused inputs and taps (A...F / A...H) must be terminated, -EMC conformity.
Cascadable multiswitches SMK 99xx F:
These passive modules are accessory components for the multiswitches for con-
structing a satellite IF distribution system. They support the terrestrial signal
distribution and are fully return path compatible.
In the case of central distribution, the components can be connected to one another
with ZSV 2 S push-on connectors, or they may also be installed separated from one
another as "storey distributors".
The trunklines of the cascade have to be terminated with DC-isolated resistors
(ZFR 75 DC). These DC isolated resistors are supplied with the SMS-multiswitches.
As a rule, typically 2, max. 3 cascadable multiswitches can be connected one behind
the other. A network repeater amplifier (e.g. type SMS 9982 NFI) should be used in
order to subsequently install additional distributors. The cascade components have a
current consumption of 25 mA per connected receiver.
The stand-by function of the multiswitches is supported by the cascadable
multiswitches.
The trunklines 0 and 2...8 can transmit remote feeding currents up to 2 A.
• The mode selectors, described under “Selection logic” are available in the
SMK 99xx2 F types.
• The SMK 99xx9 F types require DiSEqC compatible receivers.