SRM522

Description

Cascadable single cable multiswitches for the distribution of SAT IF and DTT signals over one cable to up to 32 receivers

Overview:
SRM522- programmable 5 cable cascadable multiswitch with passive terrestrial TV path and dedicated DC entry port.
Implemented in compact die-cast housing the multiswitch supports legacy mode, dynamic SCR mode regarding EN50494, dynamic dSCR mode regarding EN50607 and could configurated for operation in static mode with up to 32 carriers.

Features:
• Digital SCR multiswitch Satellite and Terrestrial, 2 outputs
• Cascadable single cable multiswitch
• Wideband/quattro LNB IF range, switchable
• Control according legacy/EN 50494/EN 50607
• Configurable with programmer PC102W:
─ 1 dSCR (32 user bands)+1 legacy outputs
─ 2 dSCR outputs (16+16, 24+8,… user bands)
─ 2 static mode outputs (32+0, 16+16,…transponders) other configurations are possible
• DC input for external power supply
• DC by pass from DC input / tap outputs for LNB powering
• Passive terrestrial TV path allows to receive terrestrial TV programs without switching on SAT receiver
• Robust die-cast housing
• Connectors:
─ RF inputs/outputs – type F
─ DC input – type F

Technical specifications:
Frequency range:
• SAT IF input: 290-2350 MHz
• SAT IF output: 950-2150 MHz
• Terr. TV: 5-862 MHz

Number of trunk inputs & outputs:
• SAT IF: 4
• Terr. TV: 1

Number of tap outputs: 2

Return loss / impedance: > 10 dB / 75 Ω

Input level:
• SAT IF: 60-95 dBμV
• Terr. TV: passive

dSCR output with combined DTT:
• User bands: configurable 32 max. per pair outputs
• User band bandwidth: configurable 20-60 MHz
• Output level, AGC controlled: 84 dBμV
• Terr. TV loss, typical: 11 dB

Legacy output at legacy mode with combined DTT:
• Output level AGC controlled: – / 78 dBμV (active at quattro LNB IF mode)
• Terr. TV loss, typical: 11 dB

Trunk output loss:
• SAT IF: < 3 dB
• Terr. TV: < 4 dB

DC pass through trunk lines:
• SAT IF: 2 A max., 1 A max. through one line
• Terr. TV: 250 mA max.

DC pass to H lines:
• From DC input: 20 V 1.78 A max.
• From tap outputs: 20 V 550 mA max.; 15 V 280 mA max.; 18 V 230 mA max.

Decoupling:
• SAT IF inputs/SAT IF inputs: > 30 dB
• SAT IF inputs/Tap outputs: > 30 dB
• SAT IF/ Terr. TV: > 25 dB

Current consumption without external DC feeding: 20 V 320 mA max.; 13 V/18 V 350 mA max.

Operating temperature range: -20o ÷ + 50o C

Dimensions/Weight (packed): 116x91x25.5 mm/0.28 kg

TERRA