Technische Hinweise zur Multiswitch-Serie ⢠SMS 9940 NF ... - Spaun
Technische Hinweise zur Multiswitch-Serie ⢠SMS 9940 NF ... - Spaun
Technische Hinweise zur Multiswitch-Serie ⢠SMS 9940 NF ... - Spaun
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Powersupply<br />
• The compact multiswitches are powered via an energy-saving switch mode power<br />
supply (voltage range 100...240V, 50...60Hz).<br />
Remote power<br />
The multiswitch supports 3 LNB-supply modes:<br />
12V: all 8 IF-inputs provide 12 Volts remote<br />
voltage (mode for SMATV-LNBs)<br />
18V: the vertical IF-inputs provide 12 Volts,<br />
the horizontal inputs provide 18 Volts<br />
(mode for Twin-LNBs)<br />
22kHz: as 18 Volts mode, but high-band<br />
inputs are modulated with 22kHz<br />
(mode for Universal-LNBs)<br />
The selected LNB mode does not effect the<br />
IF-selection logic.<br />
!<br />
• The total current load for the LNBs must not exeed 1 Ampere<br />
(maximum 500 mA per connector)<br />
Standby-Funktion<br />
• The multiswitch system supports a standby mode. The Sat-IF amplifiers and the LNB<br />
remote voltage are only available when at least one receiver feeds a remote voltage to<br />
its multiswitch outlet. Cascaded multiswitches activate upper devices via a control voltage<br />
on trunkline 1.<br />
• The rising remote voltage from the receiver causes a reset signal for the corresponding<br />
DiSEqC microcontroller. The controller restarts in backwards compatible mode (see<br />
analogue control signals).<br />
• The terrestrial distribution is not effected by standby mode.
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