Cisco Cisco Compact EGC Segmentable Node A90200 Data Sheet
Description
The Compact Model 90075 Node is Scientific-Atlanta’s latest
addition to its family of Compact nodes. The node offers
maximized coverage for network designs by combining the
technologies found in our proven distribution and trunk
Compact nodes. The flexible Model 90075 “two-in-one” node
can serve as a trunk or distribution node to feed architectures
of various densities and addresses divergent system needs.
Available with two high level RF output ports, it is ideal for
delivering video as well as high-speed data services over
advanced hybrid fiber coax (HFC) networks. With its modular
design the node allows segmentation in the reverse path and
independent redundancy for both the forward and reverse
path in a reliable, cost-effective package.
Forward redundancy can be implemented via use of a second optical receiver module. The Model 90075
Node’s reverse path is equally flexible and FP, DFB and CWDM optical transmitters are available. The node
provides for reverse segmentation through the addition of a second transmitter and each transmitter is
dedicated to the reverse traffic from the two individual node outputs. Alternatively the second transmitter can
be used in a redundant configuration to ensure uninterrupted service in the event of transmitter failure.
The unit’s high output level range makes it ideally suited for system upgrades to help operators push fiber
deeper into the network to increase bandwidth in support of interactive applications. The node is developed to
serve at different output levels and multiple node sizes in an HFC-network and can be connected directly to
the subscriber’s tap network. The dual outputs with enhanced intermodulation performance and flatness
enables operators to cascade more amplifiers at the end of the system. The Model 90075 Node features a
microprocessor controlled output level control. This ensures an output level that is independent of changing
optical input levels e.g., by redundant switching, additional fiber splices, and other fiber handling that affects
the optical attenuation. Unlike conventional designs, this automatic gain control (AGC) operates without pilot
tones.
The node shares common plug-in accessories with other nodes and amplifiers in the Compact family, and
utilizes PG11 RF ports or 5/8” using provided adapters. A directional coupler RF test point is provided at the
forward output and reverse transmitter, allowing for accurate signal level measurement. Surge protection is
provided for the RF ports, and the Compact node is equipped with a double gasket that includes an RF and a
water-dust gasket. All Compact nodes can be configured with a Scientific-Atlanta status monitoring
transponder (SMC or HMS) to enable remote monitoring of critical node parameters and remote control of the
built-in 3-state reverse switch. By switching to detection mode (-6 dB) it can be observed from which part of
the network the ingress derives. Once a failure has been located, the defective network segment may be
isolated until the failure has been eliminated and the remaining part of the reverse path is ensured normal
traffic.
addition to its family of Compact nodes. The node offers
maximized coverage for network designs by combining the
technologies found in our proven distribution and trunk
Compact nodes. The flexible Model 90075 “two-in-one” node
can serve as a trunk or distribution node to feed architectures
of various densities and addresses divergent system needs.
Available with two high level RF output ports, it is ideal for
delivering video as well as high-speed data services over
advanced hybrid fiber coax (HFC) networks. With its modular
design the node allows segmentation in the reverse path and
independent redundancy for both the forward and reverse
path in a reliable, cost-effective package.
Forward redundancy can be implemented via use of a second optical receiver module. The Model 90075
Node’s reverse path is equally flexible and FP, DFB and CWDM optical transmitters are available. The node
provides for reverse segmentation through the addition of a second transmitter and each transmitter is
dedicated to the reverse traffic from the two individual node outputs. Alternatively the second transmitter can
be used in a redundant configuration to ensure uninterrupted service in the event of transmitter failure.
The unit’s high output level range makes it ideally suited for system upgrades to help operators push fiber
deeper into the network to increase bandwidth in support of interactive applications. The node is developed to
serve at different output levels and multiple node sizes in an HFC-network and can be connected directly to
the subscriber’s tap network. The dual outputs with enhanced intermodulation performance and flatness
enables operators to cascade more amplifiers at the end of the system. The Model 90075 Node features a
microprocessor controlled output level control. This ensures an output level that is independent of changing
optical input levels e.g., by redundant switching, additional fiber splices, and other fiber handling that affects
the optical attenuation. Unlike conventional designs, this automatic gain control (AGC) operates without pilot
tones.
The node shares common plug-in accessories with other nodes and amplifiers in the Compact family, and
utilizes PG11 RF ports or 5/8” using provided adapters. A directional coupler RF test point is provided at the
forward output and reverse transmitter, allowing for accurate signal level measurement. Surge protection is
provided for the RF ports, and the Compact node is equipped with a double gasket that includes an RF and a
water-dust gasket. All Compact nodes can be configured with a Scientific-Atlanta status monitoring
transponder (SMC or HMS) to enable remote monitoring of critical node parameters and remote control of the
built-in 3-state reverse switch. By switching to detection mode (-6 dB) it can be observed from which part of
the network the ingress derives. Once a failure has been located, the defective network segment may be
isolated until the failure has been eliminated and the remaining part of the reverse path is ensured normal
traffic.
Features
• 862 MHz node optimized for trunk or distribution applications to feed architectures of various densities
• Extended output level range
• GaAs-FET technology for superior performance
• Full
• Full
two-way
communication
• Remarkable CTB/CSO values
• Redundancy for the forward and/or reverse path
• Segmentation of upstream signals with two (2) transmitters
• Optional status monitoring and control
• Minimizes plug-in accessory inventory requirements
• Minimizes plug-in accessory inventory requirements
Optoelectronics
Compact Node 90075