Product
GSDT-7500C OPTICAL PLATFORM



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


Application Modules

Description

Chassis

3RU standard 19”chassis, 17 slots, double power supply modules, EMS module and various service modules acceptable

Power Supply Module

Supply voltage 90 - 240VAC,max. loading 200W, front panel LED status indicator

Management Module

3.5 LCD display, 1 USB port for local configuration, 1 RJ-45 port for remote network management

1310nm Forward Transmitter

RF pass band 47 - 1003MHz, DFB laser, output power 3 – 13dBm, broadcast and narrowcast two input ports, front panel -20dB test port

1550nm Directly-Modulated Transmitter

RF pass band 47 - 1003MHz, DFB laser, output power 6, 8, 10dBm, broadcast and narrowcast two input ports, front panel -20dB test port

1550nm Optical Amplifier

Optical wavelength 1530 – 1565nm, output power 14 - 23dBm

Forward Optical Receiver

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

Reverse Optical Receiver

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

Forward Headend RF Amplifier

RF pass band 47 - 1003MHz, gain 30dB, output level -9dB adjustable, output slope -9dB adjustable, front panel -20dB input/output test port

Optical Switch Module

Optical wavelength 1200 – 1620nm, optical input power -30 - +10dBm, insertion loss 2dB, switch time 50ms

RF Switch Module

RF pass band 5 - 1003MHz, insertion loss 3dB, switch time 15ms, input port to port Isolation 60dB, front panel -20dB output test port



Ordering information

Product Description

Part Number

Chassis

GSDT-7500C-CH

Power Supply Module

GSDT-7500C-PS-II

Management Module

GSDT-7500C-EMS-II

1310nm Forward Transmitter

GSDT-7500C-FTX-II-1310

1550nm Directly-Modulated Transmitter

GSDT-7500C-FTX-II-1550

1550nm Optical Amplifier

GSDT-7500C-EDFA

Forward Optical Receiver

GSDT-7500C-FRX-02

Reverse Optical Receiver

GSDT-7500C-RRX-04

Forward Headend RF Amplifier

GSDT-7500C-STA

Optical Switch Module

GSDT-7500C-OSW

RF Switch Module

GSDT-7500C-RSW-21