Single Cable Application for up to 32 subscribers
The POLYTRON SCA 508-4 resp. SCA 908-4 supplies up to 32 subscribers with satellite channels based on the SCR system (Satellite Channel Router).
The subscribers receive four resp. eight satellite IF levels and thus the complete program variety available. Each of the eight subscriber outputs serves four user bands for SCR applications according to EN 50494.
Each output can be switched to universal mode for oper-ation of standard digital SAT receivers (DVB-S/S2).
The device can be used as a stand-alone or cascade module.
- Operation with Quattro or optionally with wideband LNBs
| Technische Daten / Specifications | ||
| Typ / Type |
SCA 508-4
|
SCA 908-4
|
| Artikel-Nr. / Article no. |
9269055
|
9269060
|
| Eingangsfrequenz / Input frequency SAT | ||
| (Quattro- / Wideband-LNB) |
950...2150 / 250...2350 MHz
|
|
| Eingangsfrequenz / Input frequency Terr. |
18...862 MHz
|
|
| Eingänge / Inputs |
4 SAT, 1 TERR
|
8 SAT, 1 TERR
|
| Ausgänge / Outputs |
SAT: 8
Terr.: 1x Durchschleifausgang / Through output |
|
| Userband-Frequenzen gemäß EN 50494 je Ausgang User band frequencies per output according to EN 50494 |
1280 / 1484 / 1688 / 1892 MHz
|
|
| SCR-Einkabel-Norm / SCR single-cable standard |
EN 50494
|
EN 50494 / EN 50607
|
| Durchgangsdämpfung |
SAT: 4 ±2 dB
|
SAT: 5 ±1,5 dB
|
| Through loss |
Terr.: 2 ±2 dB
|
Terr.: 2 ±1,5 dB
|
| Abzweigdämpfung / Tap loss |
Terr.: 26 ±2 dB
|
Terr.: 26 ±2 dB
|
| Entkopplung H/V / Isolation H/V |
30 dB typ.
|
30 dB typ.
|
| Rückflussdämpfung (gilt für Ein- und Ausgang) |
SAT: 10 dB typ.
|
SAT: 10 dB typ.
|
| Return loss (applies for in- and output) |
Terr.: 10 dB typ.
|
Terr.: 10 dB typ.
|
| Eingangspegel (AVR) / Input level (AGC) |
SAT: 60...90 dBµV
|
|
| Ausgangspegel im SCR-Betrieb @ 90 dBµV Eingangspegel Output level in SCR mode @ 90 dBµV Input level |
92 dBµV
|
92 dBµV
|
| Ausgangspegel im Universal-Betrieb @ 90 dBµV Eingangspegel Output level in Universal mode @ 90 dBµV Input level |
82 dBµV
|
82 dBµV
|
| Terr. Ausgangspegel / Terr. output level |
passiv / passive
|
passiv / passive
|
| DC Stromaufnahme vom Receiver bei SCR-Betrieb DC current consumption of receiver in SCR mode |
180 mA
|
180 mA
|
| DC Stromaufnahme vom Receiver bei Universal-Betrieb DC power consumption of receiver in Universal mode |
60 mA
|
60 mA
|
| Betriebstemperatur / Operating temperature |
0 ... +55 °C
|
|
| LNB-Versorgungsstrom / LNB supply current |
1000 mA max. (500 per LNB)
|
|
| Abmessungen (B x H x T) / Dimensions (W x H x D) |
140 x 216 x 63 mm
|
204 x 310 x 63 mm
|
