Samsung DCS Compact, Руководство по установке

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PART5. CONNECTING TELCO CIRCUITS
5.1 SAFETY PRECAUTIONS
To limit the risk of personal injury, always follow these precautions before connecting TELCO
c i r c u i t s :
a. Never install telephone wiring during a lightning storm.
b. Never install telephone jacks in a wet location unless the jack is specifically designed for wet
locations.
c. Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
d. Use caution when installing or modifying telephone lines.
5.2 LOOP START LINES
Using one pair twisted #24 AWG or #26 AWG wire, cross-connect each loop start C.O line to the
trunk port of your choice (see Figures 5-1 and 5-2).
5.3 OFF PREMISE EXTENSIONS (OPX)
Using one pair twisted #24 AWG or #26 AWG wire, cross-connect any 2 SLI port to telephone
company OPX circuits (see Figure 5-5).
Circuits on the 2 SLI card are specifically designed to meet TELCO requirements for OPX use.
These circuits are provided with the same over voltage and over current protection as C.O. line
circuits. Using single line stations on a EXP SLI or KDB SLI may cause damage to your equipment.
There is no special programming required for OPX use; however, it is suggested that the OPX ports
be set for data ports in MMC 208. The telephone company service facility interface code for OPX
circuits is OL13C.
S A M S U N G D C S I N S T A L L A T I O N
T E C H N I C AL MANUAL A P R I L 1 9 9 6
5–1