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remote feed current A - 7 per input or output Max. remote feed current, local insertion A - 10 Power consumption (without monitoring) W 17.5 Return path amplifier active GENERAL Classification according to KDG 1 TS 140 D(4.4) Ambient temperature range °C -20 to +55 data-conform operation RF connections PG 11 Test sockets F-type connector Housing protection class (to EN 60529) IP 54 Dimensions (W x H x D) mm 238 . 86 . 189 Packing unit/weight pc./kg 1(10)/2.2 1) CENELEC: 41 channels 2) When the 15 MHz high pass is connected, the dynamic range increases by 3 dB 3) Settable in 2-dB steps using slide switches VOS 952-1G/953-1G DESCRIPTION House connection amplifiers The compact, price-optimised house connection amplifiers 952-1G and VOS 953-1G were designed for application in modern HFC networks. Great value was set upon a high dynamic range for Interstage operation as well as upon a cost-efficient operation concept with slide switches. Monitoring via DOCSIS transponder If fitted with the optional monitoring transponder TVM 1000/H, the amplifiers VOS 952-1G/953-1G can be monitored via DOCSIS protocol. Monitoring with HMS Both amplifiers can be flexibly integrated into monitoring systems which operate with the widespread HMS protocol. Bridgeable diplex filter Bridging plugs enable variation of the frequency range between 47-1000 MHz and 85-1000 MHz making it possible to carry out transmission in BAND I in the forward path (without return path). Flexible return path In the latest generation, the return path can be operated either actively or passively. VOS 952-1G/953-1G • Latest GaAs-MMIC technology • Innovative operational concept: - Settings via slide switches Device settings can be reproduced exactly Fewer plug-in cards and variable attenuators needed • Very high output level at lowest intermodulation products • Built-in active return path with various setting possibilities • 15 MHz high pass can be activated in the return path • Ingress Control Switch (ICS) • Monitorable with HMS or DOCSIS (option) • Insert position for additional functions in the forward path (e.g. de-emphasis) • Bi-directional test socket on amplifier input with inductive coupling • Directional coupler test socket on amplifier output and in return path • Test signals can be coupled in for the return path • Highly efficient switched-mode power supply unit • VOS 952-1G - locally fed, F-type connectors • VOS 953-1G - remotely fed (auto-supply), F-type sockets • Surge absorbers on all RF connections and in switched-mode power supply unit • Die-cast housing • Test sockets: F-type sockets 11 VOS 952-1G/953-1G Insert position for monitoring transponder (not included in delivery scope) Input insert position e.g. for de-emphasis equaliser Forward path: Adjustment of attenuation and equalisation using slide switches LED (Power supply function)) F-type test socket on output for return path measurement or feed-in (-20 dB) Return path switchable passive/active F-type test socket bidirectional on input (-20 dB) Integrated return path amplifier, adjustable with slide switches F-type test socket for the return path (-10 dB) 12 DETAILS, ACCESSORIES, BLOCK DIAGRAM, DELIVERY STATUS Delivery status Accessories • ERZ 940 (Order no. 24510059): De-emphasis equaliser (cable-analogue) 862 MHz, 7 dB fixed • ERZ 630 (Order no. 24510108): Equaliser 47-630 MHz, 2-18 dB in 2-dB steps • ERS 800 (Order no. 24510109): System equaliser 862 MHz • ERD 810 (Order no. 24510110): De-emphasis equaliser, switchable 3 dB • TVM 850/H Order no. 26210077): Monitoring transponder HMS protocol (frequency-agile) • TVM 1000 (Order no. 26210086): Monitoring transponder DOCSIS protocol • The insert position is fitted with a 0-dB bridging plug ex works 13 VOS 952-1G/953-1G Technical Data Type VOS 952-1G VOS 953-1G Notes Order no. 24410098 24410099 Locally fed Remotely fed FORWARD PATH Frequency range MHz 47/85-1000 47/85-1000 Gain .) dB 40-32 40-32 Interstage gain setting Amplitude response dB ±0.5 ±0.5 85-1000 MHz, at 25 °C Amplitude response (additional, 862-1000 MHz) dB -0.5 -0.5 at 25 °C Attenuation setting range dB 0-16 0-16 On amplifier input Pre-emphasis setting range dB 0-16 and 0/6 0-16 and 0/6 On amplifier input and interstage Noise figure dB 4/5/5 4/5/5 At 40/36/32 dB gain Max. operational level: CENELEC channel plan .) dB.V 112/116 112/116 CTB: 60 dB/CSO: 60 dB (pre- emphasis 6 dB and gain 40 dB) Hum modulation ratio dB - >60/70 RETURN PATH Frequency range MHz 5-65 5-65 Gain, switchable dB 30/21 30/21 Frequency response dB 0.5 0.5 Attenuation setting range dB 0-16 / 0/4/8 0-16 / 0/4/8 On input/interstage Pre-emphasis setting range dB 0/3/6 0/3/6 Interstage Ingress Control Switch (ICS) dB 8/> 40 8/> 40 attenuated/switched-off Max. output level at 30 and 21 dB gain dB.V 107/116 107/116 60 dB IM2/IM3 (EN 60728-3/50083-5) Maximum output level dB.V 120 120 According to KDG 1 TS 140 (medium system load) Input level density dB.V/Hz -10 -10 CINR at 50 dB (EN 60728-3/ item 4.7) Dynamic ra...

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