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Switches

20 products from the NCI National Communications Inc. catalog. Click a part number in the interactive catalog to add it to a quote for current pricing.

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Serverswitch Model 5000

ServerSwitch Controls Up to 25 Sun ® Workstations from 1 Keyboard/Monitor Transport High Resolution Video and Keyboard Signals from Up to 25 Sun ® Workstations/Servers to a single Video Display/Keyboard. A ServerSwitch is an active, microprocessor controlled switching device which allows a single keyboard, monitor and mouse to be switched among 5 different workstations. ServerSwitch can be daisy-chained to access up to 25 CPUs from 1 monitor and keyboard. Video, keyboard and mouse signals are all switched trans- parently to each CPU, eliminating interference with active CPU processes. Keyboard emulation is supplied at all times to all CPUs (regardless of switch posi- tion), thereby eliminating a processor re-boot which would occur if a processor detected a missing keyboard. All video channels are passed transparently along with their respective monitor sense lines, allowing correct CPU video setup. The LED display on the master will always show the selected channel. In the event of discon- nection or interruption of any one of the inputs to the ServerSwitch, an error will be displaye don the front panel of the ServerSwitch when that channel is selected. With the optional Remote Control Unit, ServerSwitches can be controlled from a user location outside the com- puter installation. For long distances (up to 3.000’) a VDE/200 Video Display Extension System can be used. Features • Transparent to all Sun ® monitor and keyboard types, uses standard Sun ® cabling • Pushbutton selection with Error and Channel display for ease of operation • Error indicator flashes if signal is not presen ton a selected channel • Two rack-units in height for up to 5 worksattions, may stand alone. Switches up to 25 workstation inputs in daisy-chain configuration. • Remote Control Unit also available Specifications Video Connections: Keyboards Connections: Power: Operating Temparature: Indicators Channel Select: Error: Power indicator: on Switch Type: Dimensions, Weight: 13W3 female connectors 8 pin mini-DIN female connectors 115/230V 50/60 Hz W, switched, fused 0-45˚C LEDs LEDs flash “E”, then input number Channel LEDs will be lit when power is

Catalog page 102

Remote Cntrl Unit W/25’ Serial Cable

Electronic touch 3-12” x 16-3/4 W19” (including rack mount ears) x 10” D; 10 pounds Control 2 to 64 PC’s with a single keyboard, mouse and monitor up to 150’ away. Tur non AutoScan, and Master Console will display the activity of the connected computers at intervals between 1 and 16 seconds.

Catalog page 102

2 Channel

Applications: • Control of multiple network servers, bridges and gateways. • Software development/testing on multiple workstations/servers. • Networking stress testing. • System integration and burn-in testing. • Improve productivity with central control of PC’s. • 100% reliability with superb video quality. • Hot-Key gives you to the option of directly selecting PC’s from a single keyboard.

Catalog page 102

Serial Port To PS/2 Mouse Port Converter

Catalog page 102

Deluxe Auto Bufferswitches

Share Up to 8 PCs with 1 printer using standard parallel printer cables. 1 Mb built-in buffering releases PCs from print jobs. This deluxe High-Speed Buffered AutoSwitch ensures fast, error-free printing with no waiting. This Switch is designed for complex print jobs. Boost your productivity by sharing your parallel printer with 2,4, or 8 PCs. Also works flawlessly with com- plex Windows, Windows 95 and PostScript print jobs and graphics- generating software. Memory: 1 MB Interface: Centronics and IBM ® PC parallel compatible Connectors: Input: 2, 4 or 8 36-pin Centronics female Output: 1 DB25 female Indicators: 1-segment display for Power-up, Ready and Port Activity Status Dimensions: 2 Port: 2.2” x 8.7” x 4.3” 4 Port: 3” x 8.7” x 4.3” 8 Port: 4.5” x 8.7” x 4.3” Weight: 2 Port: 4.2 lb. - 4 Port 4.8 lb. - 8 Port 6.2 lb.

Catalog page 103

Compact Parallel Auto Bufferswitches (Part #403273…)

• 2 computers share 1 parallel printer • LEDs indicate channel-in-use & buffer status • 10 or 60 sec. timeout & DB25F connectors • 25-50KCps transfer rate & up to 80% data compresion, w/manual override switch • Form feed enable/disable • Recommended Cables: Computer: DB25M/M Printer: DB25M/Cen36M FOR 1 PARALLEL PRINTERS • Up to 8 computers share 1 parallel printer, DB25F connectors • First-come, first-serve input selection w/manual override selector switch • Expandable to 2 Meg, 20-40KCps transfer rate and up to 80% data compression • LEDs indicate channel-in-use, ready, & manual override • Settable 5-60 sec timeout & auto form feed enable/disable • Recommended Cables Computer: DB25M/M Printer: DB25M/Cen36M • Up to 4 computers share 2 serial printers • 255 multicopy function & 256K buffer expandable to 3.3 Meg. • LEDs indicate channel-in-use, buffer ready & full • Automatic input selection w/reset button & concurrent Input/Output arbitration • DB25F (input-DCE), 2 DB25M (output-DTE) connectors • Auto form feed enable/disable, hardware and/or Xon-Xoff handshake • Settable 3-200 sec timeout, 300-38400bps buffer speed • Reconfigurable to 3 to 1 or 5 to 1 • Includes DOS/Windows software for printer selection • Recomended Cables Computer: DB25M/F Printer: depends on your printer

Catalog page 103

Compact Parallel Auto Bufferswitches (Part #403279…)

FOR 2 PARALLEL PRINTERS • Up to 4 computers share 2 parallel printers & DB25F connectors • LEDs indicate channel-in-use & buffer status • 16KCps transfer rate & 3-200 sec timeout • Form feed enable/disable, concurrent input arbitration, & 255 multicopy function • First-come, first serve w/reset button • Daisy chainable, up to 2 stages (16 x 6) • Includes DOS/Windows printer software.

Catalog page 103

2 To 2, 256K Expd. To 3.3 Meg

Catalog page 103

2 Port

Now your parallel printer can be shared among 2, 4 or even 8 users, and you can use the same standard parallel printer cables you’d use for just a single PC. With its 8-KB buffer, it’s the economical answer to handling several smaller print jobs. Memory: 8KB Interface: Centronics and IBM ® PC parallel compatible Connectors: Input: 2, 4, 8 36-pin Centronics female Output: 1 DB25 female Indicators: 7-segment display for Power-up, Ready, and Port Activity Status Dimensions: 2 Port: 2.2” x 8.7” x 4.3” 4 Port: 3” x 8.7” x 4.3” 8 Port: 4.5” x 8.7” x 4.3” Weight: 2 Port: 4.2 lb. - 4 Port 4.8 lb. - 8 Port 6.2 lb. ServerMaster allows a single user station to access up to 64 or 216 servers/PCs. Ideal for network administrators who need to update directories, control security, and monitor the status of multiple servers. Also great for remote operation of multiple PC and QC during PC burn in procedures. Saves the space needed for monitors, keyboards, and mice AND saves administrators time.

Catalog page 104

4 Servers

• Single Keyboard/VGA/ mouse access 6 servers • Cascadable to expand access up to 216 computers • 1 ready & 6 Port status LEDs, auto scan mode or manual • Supports 486/Pentium/PS/2 & VGA/SVGA • Features regular PC keyboard/mouse port • Daisy chain option can expand access up to 216 PCs • Din5/Mini6, HD15, DB9 connectors • Single keyboard/VGA/ mouse access 4 servers • Cascadable to expand access up to 64 computers • Port status LEDs, auto scan mode or manual • Supports 486/Pentium/PS/2 & VGA/SVGA • Features dual PC & PS/2 keyboard/mouse port • One user station access 4 computers • Switch by keyboard or selection button • Built-in buzzer for switching confirmation • Din5/Mini6, HD15, DB9/Mini6 connectors You can switch from the front-panel keypad, keyboard commands or the RS-232 serial port. Get the right configuration for your application. Call NCI for more information.

Catalog page 104

6 Servers

• Single Keyboard/VGA/ mouse access 6 servers • Cascadable to expand access up to 216 computers • 1 ready & 6 Port status LEDs, auto scan mode or manual • Supports 486/Pentium/PS/2 & VGA/SVGA • Features regular PC keyboard/mouse port • Daisy chain option can expand access up to 216 PCs • Din5/Mini6, HD15, DB9 connectors

Catalog page 104

The Single Control Station

• Control PC, Mac ® and Sun ® CPUs from 1 keyboard, monitor, and mouse or mix different platforms • Keyboard emulation avoids lockups and allows you to use the mouse and keyboard of your choice • Keyboard and Alphanumeric display enable users to define and display a name for each CPU • Convenient switching options - keyboard, front-panel, or RS 232 serial port - provide greater control and flexibilty Connect all your IBM ® PC,Mac ® and Sun ® servers or CPUs via a single keyboard, monitor, and mouse. You can monitor the CPU currently under control using the ServManager’s alphanu- meric display.

Catalog page 104

2 TO1

• Control Up to 256 Macintosh® or Sun® CPUs with 1 keyboard, monitor, and mouse. • Switch from your keyboard, the Switch’s front panel, or remotely • Rackmount Kits are also available

Catalog page 104

4 To 1

National Communications Inc.

Catalog page 104

VGA Splitters

Share your display with up to 8 other VGA monitors. Great for product presentations, classrooms, confer- ences or software demonstrations. Specifications Connectors VGA Splitters: HD-15 Male input. HD-15 Female 4 Ports; HD-15 Female 8 Ports output.

Catalog page 105

Switches

Switching is one of the most common money-saving techniques in office computing. With a switch, users share the printer. We offer 2 types of switches: manual & auto. With manual switches, users control shared equipment by turning a knob or pressing a button. Auto-switches follow preset instructions about time and circumstance, and allow greater flexibility.

Catalog page 105

Belkin Bitronics 2PORT Autoswitch

These Belkin Bitronic AutoSwitches allow 2 or 4 (depending on the model) computers to share one IEEE 1284 compatible printer. They fully take advantage of the bi-directional features and capabilities of any bi-directional printer. New IEEE 1284 compatible printers can now send printer information suc has paper jams, printing status, printer off-line, out of paper and other messages to all the computers at the same time. Also functions with non-bi-directional printers. For All Bi-Directional Printers • Compatible with HP, Canon, Epson and other Bi-Directional Printers • IEEE 1284 Compatible Connect Your Mac or PC to any TV or VCR With this small, lightweight computer interface and Apple MacIntosh, DOS, Windows or OS/2-based software, you can create high impact presentations to view on any television. This allows you to make group presentations from your desktop, Apple Powerbook or PC compatible laptop. The Presenter TVIEW TM Gold is an external plug & play hook up that will not slow down your computer, even while displaying on a large 50” screen or projection TV. The Presenter TVIEW Gold uses revolutionary circuitry that far surpasses the quality of anything previously introduced to the market. It offers such features as Sharp View TM and Clear Image TM , which produce unparalleled quality screen displays. The Video Stabilizer TM eliminates screen flicker. • The Presenter TVIEW Gold • 1 Apple MacIntosh Video Cable • 1 VGA Cable • Power Cube • Composite Video Cable • S-Video Cable • MacIntosh Software: Electronic Marker • PC Software: Video Fonts, Electronic Marker • Apple TM RGB monitors • Apple multiple scan monitors • All VGA monitors • MacIntosh with monitor port • PC with VGA output Main Unit - 8.25” x 3.8” x .94”

Catalog page 106

Vga/Ps2/Ps2M

Dram Memory - 64KB-4MB I/O Channels - One serial Input/One serial Output Front Pannel Indicators - RAM status, Plotter error, Buffer ready, Pause, Replot/Run Power Comsumption - Max. 11 W Operation Temperature - 5 o C - 40 o C (41 o F - 104 o F) Stock Temperature - -20 o C - 60 o C (-4 o F -140 o F) CPU - Z-80A Power - DC9V, 1.2A Humidity - 0-80% Function Key - Reset, Pause, Run, Cancel Replot, Slow-Down - Supported Time Out Selection - 10 seconds or 30 seconds Auto Form Feed - Supported (For Printer Only) Protocol - Hardware, XON/XOFF, ENQ/ACK, No Baud Rate - 150-19200 bps Data Bits - 7 or 8 Stop Bits - 1 or 2 Parity Check - Disabled, Even, Odd Dimensions - 184x127x61 mm

Catalog page 107

Eazy CPU To Server Switch

Catalog page 107

Auto Data Switch Box 8 To 1 Parallel

Catalog page 107