ABB mFLO Series 시작 매뉴얼 - 페이지 14

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If a radio is used, verify directional antenna with correct frequency

range is pointed toward base (± 6°). The antenna should be mounted

vertically, with the vanes perpendicular to the ground. Verify that the

radio is good, with the same frequencies used.

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If a modem is used, verify dial tone on line at the telephone

company's termination box by checking Tip and Ring. Check wiring

from phone company's box to dial-up modem. If cellular, also check

for proper Tip & Ring voltage available. Insure phone number is

correct in the

NOTE: In the United States, telephone companies use a 48 volt power

supply so the typical on-hook voltage between the Tip and Ring

wires should be something less than 48 volts. Measuring another

way, Tip to ground is approx. zero volts and Ring to ground is

approx. –48 volts.

In the off-hook condition, Tip to ground will be approx. –20 volts

while Ring to ground will be approx. –28 volts or approx. 8 volts

between Tip and Ring.

Users in other countries will have to consult their local telephone

companies for voltage specifications.

Wiring

Specific wiring drawings are sent with each

ordered. Most wiring diagrams, including communications are available

on the web at http://www.abb.com/totalflow. Select "Continuing Customer

Service

and

Communications pin-outs of the

of this guide.

FLO and WinCCU.

Support",

and

FLO, based on the options

then

select

FLO are shown on pages 10 and 11

"Wiring

Instructions".