Telephones and Peripheral
Adaptor
Off-Premises Adaptor (OPX)
Guidelines
l
Analog phones can be connected as off-premise stations through a direct
line to the DBS or through the central office, depending on how far the
stations are
the OPX Adaptor
Table 5-3 shows how far the OPX stations can be from the adaptor
Maximum distances for direct connection to OPX stations
Wiring
Max distance
(in feet)
between
the OPX Adaptor and the OPX
station
27877
I
17532
I
AWG 26
11025
l
One OPX Adaptor (VB-43702) is required for each OPX station
l
The ringing output of the OPX Adaptor is 225 Vp-p (peak-to-peak) at 20
Hz
l
When OPX stations are connected through
central office, an
external
ringer supply may be required If required, the ringing supply is connected
to the OPX Adaptor
Installation
The following procedures describe direct OPX connection and OPX
connection through a CO Refer to Figure 5-13 when installing the OPX
Installing an OPX Station Without Going Through a Central Office
1
Remove the cover from the OPX Adaptor
2
Remove the cable punch-out plate (Figure 5-12) to make an opening for
the cables coming into the OPX Adaptor
To remove the plate, cut the grooves on either side with diagonal cutters
Then bend the plate back and forth with needle-nose pliers remove it.
Issued
DBS 824-l O-300
3
Содержание DBS 824
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