CATV Fiber Optic Node/Receiver with AGC

HHA-SGZF-1.2G  Optical Node

HHA-SGZF-1.2G  Node is designed to meet the growing need for delivering fiber deeper into operator's networks,is an exceptional blend of performance and value in a compact aluminum housing. Premium features include forward path segmentation, return path segmentation, redundant power supplies and optional Local Channel Injection. The node can be deployed as a cost-effective 1x1 and scales easily to a 2x2 to manage network demands. The node is Electronics Package (E-Pack)- based to enable ease of maintenance.
 

1. 1200 MHz Gallium Arsenide ( GaAs)
2. Four high-level outputs 55 dBmV
3. Forward segmentation or redundancy
4. Return segmentation or redundancy
5. Redundant power supplies
6. FP/DFB/CWDM reverse transmitters
7. Local Channel Injection
8. 100/240V mains
9. 24/90 V network
10. Euro-DOCIS status monitoring
11. Optical AGC
12. 15A power passing
13. RF -20 dB test point
14. IP68 weather rating

Downstream Performance
HHA-SGZF-1.2G can be configured with a single receiver, or two receivers in either a redundant or segmented mode. A forward configuration router board directs the signals from the receiver(s) depending on the selected mode (redundant or segmented). The receiver is a plug-in module that features optical AGC to maintain a constant RF output across a wide optical input range. Optical AGC can be easily enabled or disabled via a switch on the receiver depending on installation preferences. The receiver features a dynamic input range of -7 to 0 dBm, scaled optical power voltage test point and status LED's. An RF test point on the lid board assists technicians with setting proper operating levels.
The HHA-SGZF-1.2G  features four high-level Gallium Arsenide (GaAs) outputs. The main RF Electronics Package features ergonomic plug-in attenuators and equalizers to facilitate easy set-up and maintenance. RF test points are available to assist technicians with setting proper operating levels without disrupting service.
Upstream Performance

The return path can be configured for a combined return onto a single transmitter or two transmitters for redundancy. Alternately, the return path can be segmented, where each pair of RF returns are directed to independent transmitters. The node can be configured with a wide variety of analog transmitter technologies including Fabry Perot, Distributed Feedback, and Coarse Wave Division Multiplexed (CWDM) 2 mW transmitters. CWDM transmitters are available in sixteen wavelengths from 1270 to 1610 nm. All transmitters feature a scaled optical power voltage test point and status LED's.

An RF test point on the HHA-SGZF-1.2G lid board assists technicians with setting proper return input levels to the transmitters. The node features two fiber service cable entry ports and fiber management tray with room for pad and equalizer storage.

Status Monitoring

The HHA-SGZF-1.2G can be configured with an optional Euro-DOCSIS or DOCSIS status monitor transponder for remote management and control. The node can also be configured with Ingress Control Switches to allow operators to diagnose upstream noise issues.

Specifications

C/N ratio and Distorted performance Test condition: The standard optical transmission (belt predistortion  circuit), 59 group PAL-D channel spike, the 10km optical fiber adds the optical fiber varible attenuator, the 10dB slope.
Optical Receiver Module RF Amplify Part(forward transmission path) Return Transmission Module(return transmission path)

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