Campbell COM320, Инструкция по эксплуатации

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COM320 Voice Communications Modem
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6.5 Connecting to a Surge Protector
Campbell Scientific offers two surge protectors (pn 4330 and pn 6362). The
4330 and 6362 are essentially the same, except the 6362 has hardware for
mounting to an enclosure backplate.
The 4330 is also known as the 2374-01.
The 4330 and 6362 have a protector element for each line that consists of a
heavy-duty-rated, two-element gas tube, an external backup gap assembly, and
a switch-grade shorting mechanism. The gas tubes (tip and ring) are sealed in
a fire-resistant plastic body. DC Breakdown @ 100 V/sec is 300 to 500 volts;
DC extinguishing @ 52 V, 135 V, and 150 V is less than 150 milliseconds.
FIGURE 6-4 and FIGURE 6-5 show the wiring for connecting the surge
suppressor. Color coding of wires may vary. The important consideration is to
follow TIP all the way through and RING all the way through. While no
damage usually occurs from crossing wires, the phone line will not work until
it is wired correctly.
Phone wires are live, typically with low voltage (30 to 50
Vdc). While not harmful in most situations, Campbell
Scientific recommends installing the surge protector in dry
weather only by qualified technicians.
FIGURE 6-4. Top View of Surge Suppressor Wiring
NOTE
CAUTION
BURIED PHONE CABLE