产品名称：BLACK BOX ME731A-FSP
型号：ME731A-FSP
品牌：BLACK BOX
描述： Enables RS-232 UNIX? and similar systems to communicate over two unconditioned twisted pairs.
Carrier-sense handshaking detects carrier from the RS-232 terminal.
Built-in surge protection ***ailable.
No AC power or batteries needed.
规格：
The asynchronous Carrier Sense Mini Driver–A makes it possible for RS-232 UNIX? and similar systems to communicate over two unconditioned twisted-pair cables. That's because it features carrier sense handshaking, which detects the presence of a carrier (RTS) on the line. And that comes in handy in applicati*** where the host must "see" a carrier in order to send a log-on screen to a terminal.
At 19.2 kbps over 24 AWG wire, the Carrier Sense Mini Driver–A carries your data 3.7 miles (5.9 km). Its maximum distance is 8 miles (12.8 km). The distance depends on speed and wire size. Choose models with optional surge protection—600 watts per wire—so your data doesn't get zapped. You can also select models with different connectors. An external DTE/DCE switch makes changing modes simple. And it's all ***all enough to fit in the palm of your hand.