Black Box MULTIPOINT LINE DRIVER دليل المستخدم

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Microdriver 9, Short-Haul Modem-B, and Multipoint Line Driver
Send your async data up to several miles
Send your async data up to several miles
from your computer equipment—without
from your computer equipment—without
the expense of a modem.
the expense of a modem.

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OVERVIEW FEATURES If you want to transmit data from your computing equip- Lastly, determine the speed you want your data to travel, • Send async data across short- ment further than the 50-foot (15.2-m) RS-232 limit but don’t reviewing your computer’s limitations to see if it supports and medium-range distances. need a modem (which can transmit data worldwide), then high speeds, and the distance it must travel. You’ll also need • Use existing in-house twisted-pair order a Microdriver 9, Short

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A typical application using the High-Speed SHM-B Async, a powered driver that’s ideal for sending async data point-to-point at speeds up to 115.2 kbps. Text Text subhead (2) twisted pairs Text RS-232 RS-232 cable cable Async Async minicomputer High-Speed SHM-B Async High-Speed SHM-B Async terminal (ME802A) (ME802A) Short-Haul Modem-B 2W-A (SHM-B 2W-A) • Local analog loopback circuitry lets you check the • Powered, point-to-point, 2-wire. operation of both your local and remote units. • A pair

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A typical application in which multiple LD485A-MPs are used for 4-wire, multipoint communications. Industrial controller LD485A-MP (ME836A-R5) LD485A-MPs (ME836A-R5) PLCs High-Speed Short-Haul Modem-B (SHM-B) Async RS-232/RS-485 Multipoint Line Driver (LD485A-MP) • Powered, point-to-point, 4-wire. • Powered, point-to-point or multipoint, 2- or 4-wire. • Speeds up to 115.2 kbps. • Provides high-speed service (64 kbps) for large multipoint • Ideal for applications where data speed is crucial. ins

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Special circuitry within the driver lets it work with any You can order the RS-232/RS-485 Multipoint Line Driver DTE that can be polled, regardless of the DTE’s RTS support, in standalone 115-VAC (ME836A-R5), standalone 230-VAC so you get total compatibility with your DTE hardware. (ME836AE-R3), and rackmount card (ME836C-R5) versions. The RS-232/RS-485 Multipoint Line Driver can be jumpered Cables are included with the 115-VAC standalone model for a user-selectable port timeout. After the la

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Quick Reference Guide Item Powered/ Multipoint 2-wire 4-wire Full Half- To To To Power Nonpowered or duplex duplex 19.2 64 115.2 5-wire* kbps kbps kbps ME790A-M, Nonpowered ✓✓ ✓ RS-232 interface, DCE mode: Pins 3, 4, 7 790A-F ME792A-MSP, Nonpowered ✓✓ ✓ ✓ RS-232 interface, DCE mode: Pins 3, 4, 7 792A-FSP ME794A-M, Nonpowered ✓✓ ✓ ✓ RS-232 interface, DCE mode: Pins 3, 4, 7 1794A-F ME1791A-F Nonpowered ✓✓ ✓ ✓ RS-232 interface, DCE mode: Pins 3, 4, 7 ME755A Powered ✓✓ ✓ 115 VAC, 60 Hz ME755AE Powe