Description
GSDT-7500C is a 19” 3RU optical platform, which specifically designed for Cable TV head end. It has 17 slots and can accepts various application modules.
GSDT-7500C can be configured with two power supplies, which are load sharing and redundant protection. It has excellent design in the ventilation and heat-dissipation.
GSDT-7500C series have various service modules optional. They are 1310nm forward transmitter, 1550nm Directly-Modulated Transmitter, forward optical receiver, reverse optical receiver, forward RF headend driver amplifier, optical amplifier, RF switch, optical switch, etc.
GSDT-7500C management module contains a 7” LCD screen, and USB & RJ-45 one port each, which are used for local configuration and remote monitoring.
Features
?3RU, 17 application module slots
?14 service module slots, various service modules optional
?Modules Hot-swap capability
?Double power supply, load sharing and redundant protection
?Excellent ventilation and heat-dissipation.
?Low power consumption
?3.5” modular LCD, save slot
?Support SNMP remote management (RJ-45 interface)
?Support service modules local configuration (USB interface)
?WEB browser configuration interface
?Firmware field upgradeable
Block Diagram
Application Modules List
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Application Modules
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Description
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Chassis
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3RU standard 19”chassis, 17 slots, double power supply modules, EMS module and various service modules acceptable
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Power Supply Module
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Supply voltage 90 - 240VAC，max. loading 200W, front panel LED status indicator
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Management Module
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3.5 LCD display, 1 USB port for local configuration, 1 RJ-45 port for remote network management
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1310nm Forward Transmitter
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RF pass band 47 - 1003MHz, DFB laser, output power 3 – 13dBm, broadcast and narrowcast two input ports, front panel -20dB test port
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1550nm Directly-Modulated Transmitter
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RF pass band 47 - 1003MHz, DFB laser, output power 6, 8, 10dBm, broadcast and narrowcast two input ports, front panel -20dB test port
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1550nm Optical Amplifier
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Optical wavelength 1530 – 1565nm, output power 14 - 23dBm
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Forward Optical Receiver
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Two redundant optical input ports, optical input power -3 - +3dBm, optical AGC, RF output level 35dBmV, RF pass band 47 - 1003MHz, RF output level -20dB adjustable, front panel -20dB output test port
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Reverse Optical Receiver
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Four independent optical input ports, optical input power -18 – 0dBm, optical AGC optional, max. RF output level 45dBmV, RF pass band 5 – 200MHz, four independent RF outputs, front panel -20dB output test port
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Forward Headend RF Amplifier
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RF pass band 47 - 1003MHz, gain 30dB, output level -9dB adjustable, output slope -9dB adjustable, front panel -20dB input/output test port
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Optical Switch Module
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Optical wavelength 1200 – 1620nm, optical input power -30 - +10dBm, insertion loss ≤ 2dB, switch time ≤ 50ms
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RF Switch Module
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RF pass band 5 - 1003MHz, insertion loss ≤ 3dB, switch time ≤ 15ms, input port to port Isolation ≥ 60dB, front panel -20dB output test port
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Ordering information
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Product Description
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Part Number
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Chassis
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GSDT-7500C-CH
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Power Supply Module
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GSDT-7500C-PS-II
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Management Module
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GSDT-7500C-EMS-II
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1310nm Forward Transmitter
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GSDT-7500C-FTX-II-1310
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1550nm Directly-Modulated Transmitter
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GSDT-7500C-FTX-II-1550
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1550nm Optical Amplifier
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GSDT-7500C-EDFA
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Forward Optical Receiver
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GSDT-7500C-FRX-02
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Reverse Optical Receiver
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GSDT-7500C-RRX-04
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Forward Headend RF Amplifier
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GSDT-7500C-STA
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Optical Switch Module
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GSDT-7500C-OSW
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RF Switch Module
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GSDT-7500C-RSW-21
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