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Manafacture: Black Box File size: 117.56 kb File name: 25900b.pdf Language of manual:

Black Box Corporation. © 2007. All rights reserved. Black Box Corporation. Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • • e-mail: info@blackbox.com PRO SWITCHING SYSTEM II Managing switchable circuits is Control hundreds or thousands of devices from a single ASCII terminal or PC! a single console. This means of the card-edge interface for the Key Features Chassis-mounted switching and patching system for RS-232, RS-530, X.21, and V.35 data communications. Cards for A/B switching and patching or for switch- only capabilities. Daisychain up to 9901 fully populated chassis to control and manage up to 158,416 A/B interface cards. Management Control Software makes on- screen control a snap. Multiple programmable alarms alert you to network conditions. Dual-power options. 12/18/2007 #25900 easy with the Pro Switching System II (PSSII) from Black Box. This innovative system consists of rackmount modular components that provide an economical and reliable means to manage RS-232/V.24, V.35, X.21, and RS-530 data interfaces. With this chassis- mounted switching and patching system, you can switch individual circuits, all 16 circuits in a chassis, or a group of circuits via remote console commands or upon an alarm automatically. You can also switch manually. Use front-panel buttons to switch individual circuits or to gang- switch. Or you can disable manual switching capabilities in the system with a simple command from an attached console. We even offer a Contact Closure Card that lets you use a programmable logic controller (PLC) to direct your circuit switching. Daisychain up to 9901 chassis together to control and manage 158,416 A/B interface cards from control is an alternative to connecting multiple multiport KVM switches when you want to manage hundreds of CPUs. One PSSII console can support 32,000 switchable circuits in 2000 racks (if you install 100 racks at each of 20 sites). In this setup, each site would contain one master rack which, in turn, would support up to 99 slave chassis. And you’re not limited by a type of cabling that can be used to connect the console to the master chassis; it can be local hard-wired cabling, a dedicated link, or even a dialup link (although you must use hard-wired local cabling for all slave connections). The PSSII chassis At the heart of the system is the chassis. Choose the SM900A for RS-232, RS-530, X.21, or V.35 communications. For V.35 only, use the SM901A. Each chassis has 18 mounting slots with card guides and a backplane PC board that provides cards you plan to add. The rear plate of the chassis has three rows of DB25 EIA connectors. Use them to attach the A, B, and Common (modem) sides of your data cables. Cards seat in the chassis from the front, and their data connectors plug easily into the cable connectors without disturbing any cable bundles attached at the chassis’ rear. The first slot holds the unit’s Power Supply Modules (order separately), and the slot adjacent to it is for installing an optional Management Control Card or Terminal Display Card. The chassis’ other 16 slots can accommodate up to 16 circuit cards, which we offer as Front Interface Cards or Universal Serial Cards. Each module passes one switchable data circuit. The PSSII chassis also has a control-communications interface and two test-equipment interfaces. The latter two connections enable you to perform interactive test (continued on page 2) 2 module communications and test functions. You can use the interface labeled ”I/A”, for instance, to connect a basic error rate (BER) tester or a protocol analyzer. In addition to BER tests, you can conduct protocol simulation, block error rate (BLER) tests, or error-free seconds (EFS) tests. The other test interface, labeled “Monitor,“ enables you to connect a data-line monitor device when you want to passively monitor certain lines. The interface’s parallel-wired connectors are also used to daisychain two or more PSSII chassis. Modules for the system For your various interface requirements, we offer a number of modular cards (also called circuit cards) that can be installed in a PSSII chassis. Each card is a single switchable circuit between your data terminal equipment (DTE) and data communications equipment (DCE), and feature circuit-status display and alarm definition, detection, and reaction. The cards are equipped with three ports that link to A, B, and Common paths. These paths connect to the equipment cables attached in at the chassis’ rear. You can switch paths, for instance, when you need to reroute a circuit from an attached device that has failed to a device or circuit that’s operational. To switch, press a button on the mounted card. LEDs inform you of your selected switch position. Each card has four manual patch cavities. Three of these provide intrusive access to the A, B, and Common (modem) sides of the switchable circuit. The fourth cavity provides bridged (nonintrusive) ...

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