Black Box ME540A-ST, Технические характеристики, Страница: 3 / 3

3 of 3
8/29/2007
#18076
724-746-5500 blackbox.com
TECH SPECS
Cable Requirements — Use multimode fiber cable up to 200-micron;
62.5-micron fiber is recommended
Distance (Maximum) — 5000 feet (1524 m)
Drops Supported — 64
Fiber Launch Power — -14 dB
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 or Master/Slave mode, multipoint half-
duplex; Point-to-point line driver operation, 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;
(2) jumpers: XW2, W2; (1) 8-position DIP switch: S1
User Controls — (1) Push button: Pressed in enables DLB (Digital
Loopback) mode, and fully extended enables NORMAL mode
Interface — RS-232 DCE/DTE, RS-485, 20-mA Current Loop—active or
passive transmit and receive, fiber optic transmit and receive
Connectors — (1) DB9 F, (2) pairs of ST, (1) 4-screw terminal block
Indicators — (10) LEDs: 232, 485, 20 mA, NETWORK, MASTER, SLAVE,
PORT B TXD, PORT B RXD, PORT A TXD, PORT A RXD
Temperature — Operating: 32 to 114°F (0 to 45°C);
Storage: -40 to +176°F (-40 to +80°C)
Power — 115 VAC or 230 VAC, 60/50 Hz (external)
Size — 1.8"H x 5.5"W x 8.5"D (4.6 x 14 x 21.6 cm)
Weight — 2 lb. (0.9 kg)
Item Code
Fiber Optic Multipoint (FOM) Line Drivers
115-VAC ME540A-ST
230-VAC ME540AE-ST
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• You wait more than 30 minutes to get through
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Exceptional Value. Exceptional
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ME540A-ST