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L-band Substitution Switch : RSS 1750 (Bi-directional) 2-to-24 Substitution Switch
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Spec Sheet
RSS 1750
The RSS 1750 L-band Substitution Switch is a 2-to-24 substitution switching system that provides solid-state L-Band switching for a single set of antenna modulators (up to 24 per antenna). It offers 24 sets of primary inputs and outputs as well as two auxiliary modulator inputs. Each one of which can be substituted for any one of the 24 primary inputs. Control and status is provided either locally via the front panel keypad or remotely through a serial or Ethernet interface. Each of the primary modulator paths through the switch have guaranteed “zero-loss” whereas the auxiliary modulator (substitution) path has an additional 3.5 dB gain to compensate for the external power divider loss. Any non-selected paths are internally terminated into 50 Ωs.

Features & Benefits
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Greatly enhances flexibility in operations by substituting any of the 24 output signals with either of the two auxiliary inputs
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Ideally suited for teleport or uplink applications requiring the highest level of signal integrity & flexibility
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Auxiliary ports ideally suited for redundancy and test applications
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Auxiliary ports is internally terminated automatically when in substitution mode
| RSS 1750 L-band Substitution Switch | |
| Operating Frequency | 950-1750 MHz |
| Impedance | 50 Ω |
| P1dB | + 5 dBm |
| Return Loss | 16 dB |
| Flatness | + 0.5 dB (over any 250 MHz) |
| Return Loss | 16 dB |
| Isolation | >40 dB (47 Db typical) |
| Noise Figure | 9 dB |
| Group Delay | < 1 nsec. |
| Monitor & Control | Ethernet and RS-422 |
| Power Requirements | 100-240 V~ auto ranging, 47-63 Hz, w GND lug Dual Redundant Power Supplies |
| RF Connectors | Type “N” (female), 50 Ω |
| Ambient Temperature | 0 to +55ْ C |
| Mechanical | 5 RU (8.75”H x 19”W x 20”D) |
| Weight | 28 lbs. gross (boxed), 20.5 lbs. net |
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RSS 1750 (Bi-directional) L-band Substitution Switch
