Pcou Installation Procedures - Toshiba Strata DK24 Installation And Maintenance Manual

INSTALLATION-PCB
SECTION 400-096-206
SEPTEMBER 1992
PCOU CONTROLS, INDICATORS, AND INTERFACE CONNECTORS
CONTROL/INDICATOR/
CONNECTOR
(Figure 6-8)
CO Line Circuit 1
Indicator CD112
CO Line Circuit 2
Indicator CD212
CO Line Circuit 3
Indicator CD312
CO Line Circuit 4
Indicator CD412
J1 Connector
J2 Connector
PAD Switch SW101
PAD Switch SW201
PAD Switch SW301
PAD Switch SW401

8.20 PCOU Installation Procedures

8.21 Install the PCOU in accordance with the fol-
lowing steps:
1) Remove the PCB from its protective packag-
ing.
NOTE:
The decibel (dB) PAD switches SW101 through
SW401 control excessive loudness resulting
TABLE 6-E
TYPE OF COMPONENT
Red LED
Red LED
Red LED
Red LED
Modular connector
Modular connector
2-position slide
2-position slide
2-position slide
2-position slide
6-18
DESCRIPTION
Lights to indicate CO line circuit 1 is in
operation (NOTE: CO line indicator will
not light unless PCOU is connected to
a CO).
Lights to indicate CO line circuit 2 is in
operation (NOTE: CO line indicator will
not light unless PCOU is connected to
a CO).
Lights to indicate CO line circuit 3 is in
operation (NOTE: CO line indicator will
not light unless PCOU is connected to
a CO).
Lights to indicate CO line circuit 4 is in
operation (NOTE: CO line indicator will
not light unless PCOU is connected to
a CO).
Interface connector for CO line circuits
1 and 2.
Interface connector for CO line circuits
3 and 4.
Enables -3dB signal level drop for CO line
circuit 1.
Enables -3dB signal level drop for CO line
circuit 2.
Enables -3dB signal level drop for CO line
circuit 3.
Enables -3dB signal level drop for CO line
circuit 4.
from close proximity to a CO or PBX telephone
office by providing a -3 db signal level drop to,
or from, the PBX or CO when set to the 3
position. Switches are factory-set to the 0 (0
dB signal level drop) position.
2) If the KSU is located within one mile of the PBX
or CO telephone office, set dB PAD switches
SW101 through SW401 to the 3 (-3 dB signal
level drop) position.