Campbell Scientific COM320 Voice Communications Modem - Manual (Page 29)

COM320 Voice Communications Modem
6.5 Connecting to a Surge Protector
Campbell Scientific offers two surge protectors (CSI model 4330 and CSI
model 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. NOTE
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.
Figures 5 and 6 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. Getting wires crossed typically
does not damage anything. The phone line just will not work until the wires
are straightened out.
Phone wires are live, typically with low voltage (30-50
Vdc). While not harmful in most situations, Campbell
Scientific recommends installing the surge protector in dry
weather only by technicians with a healthy heart. CAUTION
FIGURE 5. Top View of Surge Suppressor Wiring
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