Chapter 5. Peripheral Equipment
Section
Off-Premises Adaptor (OPX)
Guidelines
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Analog phones can be connected as off-premise stations through a direct
line to the DBS or through the central
depending on how far the
stations are from ‘the OPX Adaptor.
Table 5-4 shows how far the OPX stations can be from the adaptor
without
going through a CO.
Table 5-4. Maximum distances for direct connection to OPX
Wiring
Max. distance (in feet) between
the OPX Adaptor and the OPX
station
27877
17532
I
11025
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One OPX Adaptor (VB-43702) is required for each OPX station.
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The ringing output of the OPX Adaptor is 225 Vp-p (peak-to-peak) at 20
Hz.
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When OPX stations are connected through the central office, an external
ringer supply may be required. If required, the ringing supply is connected
to the OPX Adaptor.
l
Order an
circuits for OPX stations connected through a CO.
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The following tools are required to install the OPX Adaptor:
Phillips screwdriver
Needle-nose pliers
Diagonal shears.
DBS Manual Issued
DES-70400
Summary of Contents for DBS 40
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