Black Box Fiber Optic Multipoint Line Driver

The Fiber Optic Multipoint Line Driver can completely automate your factory operations!

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What's special about this fiber optic multipoint line driver?

  • Provides centralized control of a multipoint polled system from just one PC
  • Allows you to configure the line driver in network or master/slave mode
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The Black Box Fiber Optic Multipoint Line Driver enables you to run multipoint through industrial settings by providing a centralized control of a multipoint polled system from just one PC. It is the perfect choice for data communications in even the harshest industrial settings. More

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PART # DESCRIPTION DIMENSIONS WEIGHT PRICE
BB-ME540A-ST Fiber Optic Multipoint Line Driver ST 1.8"H x 5.5"W x 8.5"D
(4.6 x 14 x 21.6 cm)
2 lbs. (0.9 kg)
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The Black Box Fiber Optic Multipoint Line Driver enables you to run multipoint through industrial settings by providing a centralized control of a multipoint polled system from just one PC. It is the perfect choice for data communications in even the harshest industrial settings.

Use this line driver to connect RS-232, RS-485, or Current Loop devices. The line driver can be configured in three modes: network, master/slave, or full-duplex, point-to-point. After which you can monitor and control up to 64 industrial devices like time clocks, conveyor belts, even printers and controllers from one central site.

  • Supports RS-232, RS-485, or Current Loop installations
  • Speeds as high as 128 kbps up to 5000 feet
  • Ideal for industrial applications that are electrically “noisy
  • Operates in half or full duplex mode
  • Includes ST connectors
  • Ideal for industrial environments, and data communications

NOTE:
Must be used in pairs.
Maximum Distance: 5000 ft. (1524 m) on 62.5-micron fiber cable
Cable Requirements: Multimode fiber cable up to 200-micron.  62.5-micron fiber is recommended.
Number of Drops: 64
Fiber Launch Power: -14dB
Link Budget: 50 – 125 µ cable: 2.5 dB
62.5 – 125 µ cable: 6 dB
100 – 140 µ cable: 11.5 dB
MTBF: 168,000 hours
Operation: Network mode (multipoint, half-duplex)
Master/slave mode (multipoint, half-duplex)
Point-to-point (full duplex)
Protocol: Asynchronous
Receiver Sensitivity: -25 dB
Speed: Transparent through 20 kbps on 20-mA current loop port
64 kbps on RS-232 port
128 kbps on RS-485 port
CE Approval: Yes
Interface: RS-232 (DCE/DTE)
RS-485
20-mA current loop (Transmit and Receive can be active or passive)
fiber optic
Connectors: (1) DB9 F
(2) pairs of ST
(1) 4-screw terminal block
Temperature: Operating: 32 to 114° F (0 to 45° C)
Storage: -40 to 176° F (-40 to +80° C)
Indicators: (10) LEDs
Power: 115 VAC, 60 Hz, external
Size: 1.8"H x 5.5"W x 8.5"D (4.6 x 14 x 21.6 cm)
Weight: 2 lbs. (0.9 kg)

HOW A LINE DRIVER OPERATES:

Line drivers can operate in any of four transmission modes: 4-wire full-duplex, 2-wire full-duplex, 4-wire half-duplex, and 2-wire half-duplex. In fact, most models support more than one type of operation. So how do you know which line driver to use in your application?

The deal with duplexing.
First you must decide if you need half- or full-duplex transmission. In half-duplex transmission, voice or data signals are transmitted in only one direction at a time, as in a CB radio conversation. In full-duplex operation, voice or data signals are transmitted in both directions at the same time, as in a telephone conversation. The entire bandwidth is available for your transmission in half-duplex mode. In full-duplex mode, however, the bandwidth must be split in two because data travels in both directions simultaneously.

Two wires or not two wires?
That is the question. The second consideration you have is the type of twisted-pair cable you need to complete your data transmissions. Generally you need twisted-pair cable with either two or four wires. Often the type of cabling that's already installed in a building dictates what kind of a line driver you use. For example, if two twisted pairs of UTP cabling are available, you can use a line driver that operates in 4-wire applications, such as the Short-Haul Modem-B Async or the Line Driver-Dual Handshake models. Otherwise, you might choose a line driver that works for 2-wire applications, such as the Short-Haul Modem-B 2W or the Async 2-Wire Short-Haul Modem.

If you have the capabilities to support both 2- and 4-wire operation in half- or full-duplex mode, we even offer line drivers that support all four types of operation.

Selecting Fiber Line Drivers.
When choosing a fiber driver, you should make a power budget, calculate the speed and distance of your cable run, and know the interface requirements of all your devices. Many of our fiber drivers are for single-mode fiber optic cable. Compared to multimode fiber, single-mode delivers up to 50 times more distance. And single-mode at full-duplex enables up to two times the data throughput of multimode fiber.


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