BLACKBOX-38887 Asynchronous Local RS-232 Multiplexors 4埠RS-232非同步多工器

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BLACKBOX-38887 Asynchronous Local RS-232 Multiplexors 4埠RS-232非同步多工器

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商品編號: BLACKBOX-38887

BLACKBOX-38887 Asynchronous Local RS-232 Multiplexors 4埠RS-232非同步多工器

Muxes that won’t shortchange you for short distances

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★★★★商品說明★★★★

Description

Asynchronous Local RS-232 Multiplexors, 4-Port

Quick Facts

Time-division multiplexors with integral short-haul modems.

Economical alternative to stat muxes.

Up to 16 async ports.
　

Further Details

Screw terminal interface on composite port.

Support speeds up to 64 kbps per port.

Operate at distances up to 3000 feet (914.4 m) over two 24 AWG twisted-pair cables.

Plug-and-play installation—no option switches to set.

Here’s an economical alternative to more expensive stat muxes.

Our Async Local RS-232 Muxes are time-division multiplexors that support 4-channel speeds up to 64 kbps, 8-channel speeds up to 38.4 kbps, and 16-channel speeds up to 19.2 kbps. All ports operate at maximum throughput levels with virtually no multiplexing delay. All models have an internal line driver for twisted pair. The units’ internal line drivers provide limited-distance communication over private networks with point-to-point twisted-pair cabling.

Our Asynchronous Local RS-232 Multiplexors automatically adapt port speeds to the rates of your individual terminals—no clock source is required. Plus, synchronization between multiplexors is maintained automatically.
　

Technical Specifications for Asynchronous Local RS-232 Multiplexors:

Distance (Maximum) — 3000 ft. (914.4 m) on (2) twisted-pair cable (24 AWG)
Multiplexing Technique — Time division
Operation — Full-duplex
Speed (Maximum) — 38887: 64 kbps per port;
38889: 38.4 kbps per port;
38891: 19.2 kbps per port
Protocol — Async
Interface — Channel: RS-232;
Composite: 4-wire terminal block
Connectors — Channel: 38887: (4) RJ-45; 38889: (8) RJ-45; 38891: (16) RJ-45;
Composite: 4-screw terminal block
Power — 115-VAC, 60-Hz external power supply
Size — 38887, 38889: 1.7"H x 7"W x 5.3"D (4.3 x 17.8 x 13.5 cm);
38891: 2.2"H x 7"W x 5.3"D (5.6 x 17.8 x 13.5 cm)

NOTE: Must be used in pairs.

These products work with:
• CAT5 100-MHz Solid-Conductor Cable, 4-Pair, Straight-Pinned (EYN737MS)
Questions? Contact our FREE Tech Support.

　