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DescriptionThe PRL-414TRSBTR is a 1:4 fanout or 2 x 1:2 fanout RS-422 line driver with two 50 Ω BNC TTL inputs and four 124 Ω differential RS-422 outputs. The PRL-414RSTR high speed fanout line driver facilitates testing and integration of high speed digital communications circuits and distribution of satellite signals. The PRL-414TRSBTR has two fanout modes, selectable by a toggle switch:
The four sets of complementary outputs are 62 Ω back-terminated and designed for driving floating 124 Ω loads, normally the configuration used in RS-422 input circuits. The output swing is typically 1.40 V with a common mode voltage of 1.55 V. . Because every output is independently buffered, unused outputs do not require termination, and outputs can even be shorted without affecting other outputs. These applications would not be possible with a passive splitter or powered distribution amplifier. Multiple units of PRL-414TRSBTR can be cascaded for wider fanout, such as 1:16 or higher. The PRL-414TRSBTR can be combined with other PRL products and integrated into a rack-mount system using PRL's modular rackmount kit, PRL-MRK3-1. All I/Os are Triax, using Trompeter CBBJR79 or equivalent, and will mate with any Trompeter 70-series Triax Cable Plug with 3 lugs, or compatible connector. The PRL-414TRSBTR is supplied with a ±8.5 V/1.4 A AC/DC adapter and housed in a 1.3 x 2.9 x 6.0-in. extruded aluminum enclosure. Available accessories include voltage distribution modules and shielded twisted pair cables with Triax termination:
A related model is available with RS-422/Triax inputs, the PRL-414RSTR. |