V.35 Synchronous Multipoint Line Driver
Contents
1. panel select line and digital loopback tests blackbox com Simply set the internal switches or jumpers to determine these characteristics e Speed e Carrier constant or switched e Operation full or half duplex e TX data clock select e Node termination Typical Application The Line Driver works in point to point or multipoint synchronous applications over two or four wire twisted pair cable BLACK BOX 12 14 2010 18100 724 746 5500 TECH SPECS Speed 1 2 2 4 4 8 9 6 19 2 38 4 56 64 112 128 or 256 kbps Pins Supported V 35 CTS DCD DSR ETCA ETCB FG RCA RCB RDA RDB SG TCA TCB TDA TDB Terminal Block RXA RXB TXA TXB Range 1 mile at 56 64 kbps on 24 AWG unshielded twisted pair Operation Point to point or multipoint Mode 2 wire half duplex 4 wire full or half duplex Clocking Internal external or recovered Carrier Constant or switched Loopback None line or digital RTS CTS Delay 0 11 50 or 160 ms Diagnostics DLB LLB Interface Terminal V 35 DCE Line EIA RS 485 twisted pair 26 AWG minimum DC continuity required Connectors 1 DB25 female 1 screw terminal block 6 inch 15 2 cm DB25 male to 34 pin M block V 35 female adapter included Indicators 5 LEDs TX RX RTS CD and PWR Power Wallmount transformer 115 VAC 90 mA or 230 VAC 45 mA Size 1 8 H x 5 5 W x 8 5 D 4 5 x 13 9 x 21 5 cm Weight Unit only 1 Ib2. 0 5 kg Unit and transformer 1 5 Ib 0 7 kg The package includes e Line driver with power supply e DB25 to V 35 adapter e User s manual Recognize any of these situations e You wait more than 30 minutes to get through to a vendor s tech support e The so called tech can t help you or gives you the wrong answer e You don t have a purchase order number and the tech refuses to help you e It s 9 p m and you need help but your vendor s tech support line is closed Technically Speaking The Line Driver has diagnostic LEDs pushbuttons and DIP switches for easy operation e The front panel has LEDs for TD RD RTS CD and PWR e The front panel has push buttons for TST LLB and DLB e The printed circuit board has DIP switch banks S4 S5 S6 and S7 to set baud rate transmit data clock and node termination The ten available speeds are 2 4 4 8 9 6 19 2 38 4 56 64 112 128 and 256 kbps Choose from three transmit data clock settings Internal Clock factory setting Recovered Clock and External Clock Select node termination on or off The default setting is TERM on V 35 Synchronous Multipoint Line Driver MP485 35 Standalone 115 VAC ME521A Includes 1 converter and 1 6 DB25 M to M 34 adapter cable Standalone 230 VAC ME521AE NOTE Must be used in pairs Multifunction Rack 16 Card RM005 According to a survey by Data Communications magazine 90 of network managers surveyed say th
3. KS BLACK ROX FREE 24 hour Tech Support 724 746 5500 NETWORK SERVICES blackbox com 2010 All rights reserved Black Box Corporation 12 14 2010 18100 FEATURES Uses your existing twisted pair cable Point to point or multipoint 2 or 4 wire half duplex or 4 wire full duplex operation gt Diagnostic LEDs gt Speeds from 1 2 to 256 kbps ii je DB25 male to V 35 female adapter included 12 14 2010 ee 724 746 5500 A multipoint application over 2 or 4 wire twisted pair cable 2 or 4 Wire Cable IBM 3274 Controller Node Master IBM Mainframe Node PC with x PC with 3270 Emulation 3270 Emulation RE m gt DE mo OVERVIEW The V 35 Synchronous Multipoint Line Driver MP485 35 gives you short haul synchronous data transmission over your own twisted pair cable The Line Driver has a V 35 port configured as DCE that connects to a host computer or terminal DTE and a 4 screw terminal block for RS 485 communication over 2 or 4 wire cable The Line Driver operates in two or four wire half duplex mode or four wire full duplex mode Baud rates are switch selectable and range from 2400 to 256 000 bps LEDs on the Line Driver s front panel indicate flow control TX RX RTS and CD and status TD RD PWR And three pushbuttons TST LLB DLB on the front
4. at getting the technical support they need is extremely important when choosing a vendor But even though network managers pay anywhere from 10 to 20 of their overall purchase price for a basic service and support contract the technical support and service they receive falls far short of their expectations and certainly isn t worth what they paid At Black Box we guarantee the best value and the best support You can even consult our Technical Support Experts before you buy if you need help selecting just the right component for your application Don t waste time and money call Black Box today blackbox com lt gt BLACK BOX NETWORK SERVICES
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