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Front panel manual switches include a recessed momentary reset switch and a Gang Select switch. The Gang Select switch configures the ACC-5595 ports as one loop of eight ports or two separate loops of four ports each. Functional Characteristics • Multimode Port Wavelength: 830 to 860 nm • Multimode Cable Length: 300 m (maximum) • Single-Mode (10km) Port Wavelength: 1,300 to 1,335 nm • Single-Mode (10 km) Cable Length: 10 km (maximum) • Single-Mode (80 km) Port Wavelength: 1,540 to 1,570 nm • Single-Mode (10 km) Cable Length: 80 km (maximum) • Dark on Dark: The Dark on Dark option turns off the board’s transmitter if the receiver does not detect a signal (available for firmware versions 02.00 and later). Ethernet Controller: 10BaseT interface is compliant with Transmission Control Protocol/ Internet Protocol (TCP/IP) standards. Each hub assembly will have a unique MAC address. The hub assembly can operate on either a LAN or a wide area network (WAN). The ACC-5595 includes a remote user interface available through a standard Ethernet ACC-5595 2 Gb/s Reflective Memory Hub Assembly Block Diagram xxx-5565 SFP7 Transceiver Sync Detect Unit7 1 0 1 0 xxx-5565 SFP4 Transceiver Sync Detect Unit4 1 0 xxx-5565 SFP5 Transceiver Sync Detect Unit5 1 0 xxx-5565 SFP6 Transceiver Sync Detect Unit6 1 0 xxx-5565 SFP3 Transceiver Sync Detect Unit3 1 0 1 0 xxx-5565 SFP0 Transceiver Sync Detect Unit0 1 0 xxx-5565 SFP1 Transceiver Sync Detect Unit1 1 0 xxx-5565 SFP2 Transceiver Sync Detect Unit2 1 0 Status & Control 10BaseT Ethernet Port RS232 Port Reset Switch Gang Select Switch Universal Power Supply Power Switch, Fuse, IEC Receptacle Rear Panel Ethernet RS232 Front Panel connection. The remote interface is controlled by the use of standard HTML-based Web browsers. The user interface presents status data, such as “loss of signal” and “sync detect” information. Bypass mode, “Dark on Dark’ and the ability to force each port on/off or automatic are supported. These settings are retained in NVRAM.
The ACC-5595 is a managed hub designed to operate with the GE Intelligent Platforms 5565 family of Reflective Memory real-time network products. The Reflective Memory hub can automatically bypass ports when it detects a loss of signal or the loss of valid synchronization patterns, allowing the other nodes in the network to remain operational. Since the optical ports are implemented with small form factor pluggable (SFP) transceivers, only the required ports need to be populated. The ACC-5595 SFP transceivers can be a combination of either multimode (short distance) or single-mode (long distance) transceivers. This feature permits a cost saving in small networks as well as system optimization. For larger networks, several ACC-5595 assemblies can be cascaded, permitting a managed hub array with up to 256 nodes. Each port regenerates the serial optical signal, eliminating the problems with insertion losses and cable attenuation. Signal regeneration also reduces jitter. The RS232 port gives you the ability to monitor and control your Reflective Memory network through a simple PC serial port. The Ethernet port feature allows you to monitor and control the hub from great distances through a local area network (LAN) or via a Web browser. As an option, the ACC-5595 can be configured as a 19-inch 1U rack-mountable enclosure or as a desktop enclosure. The universal power supply permits operation with nearly any international power standard. The ACC-5595 automatically bypasses ports when the absence of valid synchronization patterns is detected. Three LEDs, adjacent to each port, provide a visual indication of the port status. Additional status indications and modes of operation are available through either the serial port or the Ethernet port. Status information includes the detection of installed transceivers, the detection of signal (light), the detection of valid synchronization patterns and the port operation speed (2 Gb/s). Control registers allow the channel bypass to be based on the absence of a single valid synchronization pattern or multiple synchronization patterns. A bypass can also be based simply on the loss of a signal (light). In addition, each port can be manually forced either active or bypassed regardless of the status indicators. An additional control register permits the transmitter of any port to be manually disabled.
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